研究者詳細 - 石野　宏和

2024/11/21 更新

　基本情報
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基本情報
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学位
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研究分野
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学歴
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経歴
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所属学協会
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委員歴

　教育活動
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担当授業科目

　社会貢献
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社会貢献活動

2024/11/21 更新

写真a

イシノ　ヒロカズ

石野　宏和

ISHINO Hirokazu

所属

環境生命自然科学学域教授

ホームページ

http://www.physics.okayama-u.ac.jp/~ishino/index.html

外部リンク

学位

博士（理学）（ 1999年3月東京大学）

研究分野

自然科学一般 / 素粒子、原子核、宇宙線、宇宙物理にする実験

学歴

東京大学

1994年4月 - 1999年3月

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国名：日本国

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東京工業大学 School of Science Dept. of Physics

1990年4月 - 1994年3月

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国名：日本国

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経歴

岡山大学学術研究院環境生命自然科学学域教授

2023年4月 - 現在

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岡山大学学術研究院自然科学学域教授

2021年4月 - 2023年3月

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国名：日本国

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岡山大学自然科学研究科教授

2017年1月 - 2021年3月

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- Professor,Graduate School of Natural Science and Technology,Okayama University

2017年

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岡山大学自然科学研究科准教授

2008年4月 - 2016年12月

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Associate Professor,Graduate School of Natural Science and Technology,Okayama University

2008年 - 2016年

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東京工業大学大学院理工学研究科助教

2007年4月 - 2008年3月

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東京工業大学大学院理工学研究科助手

2000年4月 - 2007年3月

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日本学術振興会特別研究員PD

1999年4月 - 2000年3月

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日本学術振興会特別研究員DC2

1997年4月 - 1999年3月

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▼全件表示

所属学協会

低温工学・超電導学会

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日本応用物理学会

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日本物理学会

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委員歴

J-PARC 原子核素粒子共同利用実験審査委員会(PAC)

2022年4月 - 2027年3月

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高エネルギー委員会将来計画委員

2015年9月 - 2017年8月

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団体区分：その他

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日本学術振興会特別研究員等審査会専門委員（書面担当）及び国際事業委員会書面審査委員

2013年8月 - 2015年7月

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団体区分：政府

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内閣府科学・技術関係予算に係る優先度判定の調査・検討会（個別施策ヒアリング）外部専門委員

2010年

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団体区分：政府

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論文

LiteBIRD science goals and forecasts: primordial magnetic fields 査読

D. Paoletti, J.A. Rubino-Martin, M. Shiraishi, D. Molinari, J. Chluba, F. Finelli, C. Baccigalupi, J. Errard, A. Gruppuso, A.I. Lonappan, A. Tartari, E. Allys, A. Anand, J. Aumont, M. Ballardini, A.J. Banday, R.B. Barreiro, N. Bartolo, M. Bersanelli, M. Bortolami, T. Brinckmann, E. Calabrese, P. Campeti, A. Carones, F.J. Casas, K. Cheung, L. Clermont, F. Columbro, G. Conenna, A. Coppolecchia, F. Cuttaia, G. D'Alessandro, P. de Bernardis, S. Della Torre, P. Diego-Palazuelos, H.K. Eriksen, U. Fuskeland, G. Galloni, M. Galloway, M. Gerbino, M. Gervasi, T. Ghigna, S. Giardiello, C. Gimeno-Amo, E. Gjerløw, F. Grupp, M. Hazumi, S. Henrot-Versillé, L.T. Hergt, E. Hivon, K. Ichiki, H. Ishino, K. Kohri, E. Komatsu, N. Krachmalnicoff, L. Lamagna, M. Lattanzi, M. Lembo, F. Levrier, M. López-Caniego, G. Luzzi, E. Martínez-González, S. Masi, S. Matarrese, S. Micheli, M. Migliaccio, M. Monelli, L. Montier, G. Morgante, L. Mousset, R. Nagata, T. Namikawa, P. Natoli, A. Novelli, I. Obata, A. Occhiuzzi, K. Odagiri, L. Pagano, A. Paiella, G. Pascual-Cisneros, F. Piacentini, G. Piccirilli, M. Remazeilles, A. Ritacco, M. Ruiz-Granda, Y. Sakurai, D. Scott, S.L. Stever, R.M. Sullivan, Y. Takase, K. Tassis, L. Terenzi, M. Tristram, L. Vacher, B. van Tent, P. Vielva, I.K. Wehus, G. Weymann-Despres, M. Zannoni, Y. Zhou

Journal of Cosmology and Astroparticle Physics 2024 ( 07 ) 086 - 086 2024年7月

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掲載種別：研究論文（学術雑誌）出版者・発行元：IOP Publishing

Abstract

We present detailed forecasts for the constraints on the characteristics of primordial magnetic fields (PMFs) generated prior to recombination that will be obtained with the LiteBIRD satellite. The constraints are driven by some of the main physical effects of PMFs on the CMB anisotropies: the gravitational effects of magnetically-induced perturbations; the effects on the thermal and ionization history of the Universe; the Faraday rotation imprint on the CMB polarization spectra; and the non-Gaussianities induced in polarization anisotropies. LiteBIRD represents a sensitive probe for PMFs.We explore different levels of complexity, for LiteBIRD data and PMF configurations, accounting for possible degeneracies with primordial gravitational waves from inflation. By exploiting all the physical effects, LiteBIRD will be able to improve the current limit on PMFs at intermediate and large scales coming from Planck. In particular, thanks to its accurate B-mode polarization measurement, LiteBIRD will improve the constraints on infrared configurations for the gravitational effect, giving B ^{n _B=-2.9} _{1 Mpc}< 0.8 nG at 95% C.L., potentially opening the possibility to detect nanogauss fields with high significance. We also observe a significant improvement in the limits when marginalized over the spectral index, B ^{n _Bmarg} _{1 Mpc}< 2.2 nG at 95 % C.L. From the thermal history effect, which relies mainly on E-mode polarization data, we obtain a significant improvement for all PMF configurations, with the marginalized case, √⟨B ²⟩^marg<0.50 nG at 95 % C.L. Faraday rotation constraints will take advantage of the wide frequency coverage of LiteBIRD and the high sensitivity in B modes, improving the limits by orders of magnitude with respect to current results, B ^{n _B=-2.9} _{1 Mpc} < 3.2 nG at 95 % C.L. Finally, non-Gaussianities of the B-mode polarization can probe PMFs at the level of 1 nG, again significantly improving the current bounds from Planck. Altogether our forecasts represent a broad collection of complementary probes based on widely tested methodologies, providing conservative limits on PMF characteristics that will be achieved with the LiteBIRD satellite.

DOI： 10.1088/1475-7516/2024/07/086

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その他リンク： https://iopscience.iop.org/article/10.1088/1475-7516/2024/07/086/pdf
Impact of beam far side-lobe knowledge in the presence of foregrounds for LiteBIRD 査読

C. Leloup, G. Patanchon, J. Errard, C. Franceschet, J.E. Gudmundsson, S. Henrot-Versillé, H. Imada, H. Ishino, T. Matsumura, G. Puglisi, W. Wang, A. Adler, J. Aumont, R. Aurlien, C. Baccigalupi, M. Ballardini, A.J. Banday, R.B. Barreiro, N. Bartolo, A. Basyrov, M. Bersanelli, D. Blinov, M. Bortolami, T. Brinckmann, P. Campeti, A. Carones, F. Carralot, F.J. Casas, K. Cheung, L. Clermont, F. Columbro, G. Conenna, A. Coppolecchia, F. Cuttaia, N. Dachlythra, G. D'Alessandro, P. de Bernardis, T. de Haan, M. De Petris, S. Della Torre, P. Diego-Palazuelos, H.K. Eriksen, F. Finelli, U. Fuskeland, G. Galloni, M. Galloway, M. Georges, M. Gerbino, M. Gervasi, R.T. Génova-Santos, T. Ghigna, S. Giardiello, C. Gimeno-Amo, E. Gjerløw, A. Gruppuso, M. Hazumi, L.T. Hergt, D. Herranz, E. Hivon, T.D. Hoang, B. Jost, K. Kohri, N. Krachmalnicoff, A.T. Lee, M. Lembo, F. Levrier, A.I. Lonappan, M. López-Caniego, J. Macias-Perez, E. Martínez-González, S. Masi, S. Matarrese, S. Micheli, M. Monelli, L. Montier, G. Morgante, B. Mot, L. Mousset, T. Namikawa, P. Natoli, A. Novelli, F. Noviello, I. Obata, K. Odagiri, L. Pagano, A. Paiella, D. Paoletti, G. Pascual-Cisneros, V. Pavlidou, F. Piacentini, G. Piccirilli, G. Pisano, G. Polenta, N. Raffuzzi, M. Remazeilles, A. Ritacco, A. Rizzieri, M. Ruiz-Granda, Y. Sakurai, M. Shiraishi, S.L. Stever, Y. Takase, K. Tassis, L. Terenzi, K.L. Thompson, M. Tristram, L. Vacher, P. Vielva, I.K. Wehus, G. Weymann-Despres, M. Zannoni, Y. Zhou

Journal of Cosmology and Astroparticle Physics 2024 ( 06 ) 011 - 011 2024年6月

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担当区分：責任著者掲載種別：研究論文（学術雑誌）出版者・発行元：IOP Publishing

Abstract

We present a study of the impact of a beam far side-lobe lack of knowledge on the measurement of the Cosmic Microwave Background B-mode signal at large scale. Beam far side-lobes induce a mismatch in the transfer function of Galactic foregrounds between the dipole and higher multipoles which degrads the performances of component separation methods. This leads to foreground residuals in the CMB map. It is expected to be one of the main source of systematic effects in future CMB polarization observations. Thus, it becomes crucial for all-sky survey missions to take into account the interplays between beam systematic effects and all the data analysis steps. LiteBIRD is the ISAS/JAXA second strategic large-class satellite mission and is dedicated to target the measurement of CMB primordial B modes by reaching a sensitivity on the tensor-to-scalar ratio r of σ(r) ≤ 10^-3 assuming r = 0. The primary goal of this paper is to provide the methodology and develop the framework to carry out the end-to-end study of beam far side-lobe effects for a space-borne CMB experiment. We introduce uncertainties in the beam model, and propagate the beam effects through all the steps of the analysis pipeline, most importantly including component separation, up to the cosmological results in the form of a bias δr. As a demonstration of our framework, we derive requirements on the calibration and modeling for the LiteBIRD's beams under given assumptions on design, simulation, component separation method and allocated error budget. In particular, we assume a parametric method of component separation with no mitigation of the far side-lobes effect at any stage of the analysis pipeline. We show that δr is mostly due to the integrated fractional power difference between the estimated beams and the true beams in the far side-lobes region, with little dependence on the actual shape of the beams, for low enough δr. Under our set of assumptions, in particular considering the specific foreground cleaning method we used, we find that the integrated fractional power in the far side-lobes should be known at the level of ∼ 10^-4, to achieve the required limit on the bias δr < 1.9 × 10^-5. The framework and tools developed for this study can be easily adapted to provide requirements under different design, data analysis frameworks and for other future space-borne experiments, such as PICO or CMB-Bharat. We further discuss the limitations of this framework and potential extensions to circumvent them.

DOI： 10.1088/1475-7516/2024/06/011

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その他リンク： https://iopscience.iop.org/article/10.1088/1475-7516/2024/06/011/pdf
Effect of instrumental polarization with a half-wave plate on the B-mode signal: prediction and correction 査読

Guillaume Patanchon, Hiroaki Imada, Hirokazu Ishino, Tomotake Matsumura

Journal of Cosmology and Astroparticle Physics 2024 ( 04 ) 074 - 074 2024年4月

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担当区分：責任著者掲載種別：研究論文（学術雑誌）出版者・発行元：IOP Publishing

Abstract

We study the effect of incident unpolarized signal converted to polarized light produced by a realistic half-wave plate (HWP) and evaluate the impact of the effect in the measurement of Cosmic Microwave Background (CMB) B-mode polarization signal targeting to probe the tensor-to-scalar ratio r. The HWP is modeled with the Mueller formalism, and coefficients are decomposed for any incident angle into harmonics of the HWP rotation frequency due to azimuthal angle dependence. Although we use a general formalism, band-averaged matrix coefficients are calculated as an example for a 9-layer sapphire HWP using EM propagation simulations. We perform simulations of multi-detector observations in a band centered at 140 GHz using LiteBIRD instrumental configuration. We show both theoretically and with the simulations that most of the artefacts on Stokes parameter maps are produced by the dipole leakage on B-modes induced by the fourth harmonics M_QI ^(4f) and M_UI ^(4f). The resulting effect is strongly linked to the spin-2 focal plane scanning cross linking parameters. We develop a maximum likelihood-based method to correct the IP leakage by joint fitting of the Mueller matrix coefficients as well as the Stokes parameter maps. We show that the residual leakage after correction leads to an additional noise limited uncertainty on r of the order of 10^-7, independently of the value of the Mueller matrix coefficients. We discuss the impact of the monopole signal and the potential coupling with other systematic effects such as gain variations and detector nonlinearities.

DOI： 10.1088/1475-7516/2024/04/074

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その他リンク： https://iopscience.iop.org/article/10.1088/1475-7516/2024/04/074/pdf
Search for Astrophysical Electron Antineutrinos in Super-Kamiokande with 0.01% Gadolinium-loaded Water 査読

M. Harada, K. Abe, C. Bronner, Y. Hayato, K. Hiraide, K. Hosokawa, K. Ieki, M. Ikeda, J. Kameda, Y. Kanemura, R. Kaneshima, Y. Kashiwagi, Y. Kataoka, S. Miki, S. Mine, M. Miura, S. Moriyama, Y. Nakano, M. Nakahata, S. Nakayama, Y. Noguchi, K. Okamoto, K. Sato, H. Sekiya, H. Shiba, K. Shimizu, M. Shiozawa, Y. Sonoda, Y. Suzuki, A. Takeda, Y. Takemoto, A. Takenaka, H. Tanaka, S. Watanabe, T. Yano, S. Han, T. Kajita, K. Okumura, T. Tashiro, T. Tomiya, X. Wang, S. Yoshida, G. D. Megias, P. Fernandez, L. Labarga, N. Ospina, B. Zaldivar, B. W. Pointon, E. Kearns, J. L. Raaf, L. Wan, T. Wester, J. Bian, N. J. Griskevich, S. Locke, M. B. Smy, H. W. Sobel, V. Takhistov, A. Yankelevich, J. Hill, S. H. Lee, D. H. Moon, R. G. Park, B. Bodur, K. Scholberg, C. W. Walter, A. Beauchêne, O. Drapier, A. Giampaolo, Th. A. Mueller, A. D. Santos, P. Paganini, B. Quilain, T. Ishizuka, T. Nakamura, J. S. Jang, J. G. Learned, K. Choi, N. Iovine, S. Cao, L. H. V. Anthony, D. Martin, M. Scott, A. A. Sztuc, Y. Uchida, V. Berardi, M. G. Catanesi, E. Radicioni, N. F. Calabria, A. Langella, L. N. Machado, G. De Rosa, G. Collazuol, F. Iacob, M. Lamoureux, M. Mattiazzi, L. Ludovici, M. Gonin, G. Pronost, C. Fujisawa, Y. Maekawa, Y. Nishimura, R. Okazaki, R. Akutsu, M. Friend, T. Hasegawa, T. Ishida, T. Kobayashi, M. Jakkapu, T. Matsubara, T. Nakadaira, K. Nakamura, Y. Oyama, K. Sakashita, T. Sekiguchi, T. Tsukamoto, N. Bhuiyan, G. T. Burton, F. Di Lodovico, J. Gao, A. Goldsack, T. Katori, J. Migenda, Z. Xie, S. Zsoldos, Y. Kotsar, H. Ozaki, A. T. Suzuki, Y. Takagi, Y. Takeuchi, J. Feng, L. Feng, J. R. Hu, Z. Hu, T. Kikawa, M. Mori, T. Nakaya, R. A. Wendell, K. Yasutome, S. J. Jenkins, N. McCauley, P. Mehta, A. Tarrant, Y. Fukuda, Y. Itow, H. Menjo, K. Ninomiya, J. Lagoda, S. M. Lakshmi, M. Mandal, P. Mijakowski, Y. S. Prabhu, J. Zalipska, M. Jia, J. Jiang, C. K. Jung, M. J. Wilking, C. Yanagisawa, Y. Hino, H. Ishino, H. Kitagawa, Y. Koshio, F. Nakanishi, S. Sakai, T. Tada, T. Tano, G. Barr, D. Barrow, L. Cook, S. Samani, D. Wark, A. Holin, F. Nova, B. S. Yang, J. Y. Yang, J. Yoo, J. E. P. Fannon, L. Kneale, M. Malek, J. M. McElwee, M. D. Thiesse, L. F. Thompson, S. T. Wilson, H. Okazawa, S. B. Kim, E. Kwon, J. W. Seo, I. Yu, A. K. Ichikawa, K. D. Nakamura, S. Tairafune, K. Nishijima, K. Nakagiri, Y. Nakajima, S. Shima, N. Taniuchi, E. Watanabe, M. Yokoyama, P. de Perio, K. Martens, K. M. Tsui, M. R. Vagins, J. Xia, M. Kuze, S. Izumiyama, R. Matsumoto, M. Ishitsuka, H. Ito, T. Kinoshita, R. Matsumoto, Y. Ommura, N. Shigeta, M. Shinoki, T. Suganuma, K. Yamauchi, J. F. Martin, H. A. Tanaka, T. Towstego, R. Gaur, V. Gousy-Leblanc, M. Hartz, A. Konaka, X. Li, N. W. Prouse, S. Chen, B. D. Xu, B. Zhang, M. Posiadala-Zezula, S. B. Boyd, R. Edwards, D. Hadley, M. Nicholson, M. O’Flaherty, B. Richards, A. Ali, B. Jamieson, Ll. Marti, A. Minamino, G. Pintaudi, S. Sano, S. Suzuki, K. Wada

The Astrophysical Journal Letters 951 ( 2 ) L27 - L27 2023年7月

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掲載種別：研究論文（学術雑誌）出版者・発行元：American Astronomical Society

Abstract

We report the first search result for the flux of astrophysical electron antineutrinos for energies ${ \mathcal O }(10)\,\mathrm{MeV}$ in the gadolinium-loaded Super-Kamiokande (SK) detector. In 2020 June, gadolinium was introduced to the ultrapure water of the SK detector in order to detect neutrons more efficiently. In this new experimental phase, SK-Gd, we can search for electron antineutrinos via inverse beta decay with efficient background rejection thanks to the high efficiency of the neutron tagging technique. In this paper, we report the result for the initial stage of SK-Gd, during 2020 August 26, and 2022 June 1 with a 22.5 × 552 kton · day exposure at 0.01% Gd mass concentration. No significant excess over the expected background in the observed events is found for the neutrino energies below 31.3 MeV. Thus, the flux upper limits are placed at the 90% confidence level. The limits and sensitivities are already comparable with the previous SK result with pure water (22.5 × 2970 kton · day) owing to the enhanced neutron tagging. Operation with Gd increased to 0.03% started in 2022 June.

DOI： 10.3847/2041-8213/acdc9e

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その他リンク： https://iopscience.iop.org/article/10.3847/2041-8213/acdc9e/pdf
Performance of a 200 mm Diameter Achromatic HWP with Laser-Ablated Sub-Wavelength Structures 査読

R. Takaku, T. Ghigna, S. Hanany, Y. Hoshino, H. Ishino, N. Katayama, K. Komatsu, K. Konishi, M. Kuwata-Gonokami, T. Matsumura, H. Sakurai, Y. Sakurai, Q. Wen, N. Y. Yamasaki, J. Yumoto

Journal of Low Temperature Physics 2022年12月

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掲載種別：研究論文（学術雑誌）出版者・発行元：Springer Science and Business Media LLC

DOI： 10.1007/s10909-022-02922-6

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その他リンク： https://link.springer.com/article/10.1007/s10909-022-02922-6/fulltext.html
Sensitivity Modeling for LiteBIRD 査読

T. Hasebe, P. A. R. Ade, A. Adler, E. Allys, D. Alonso, K. Arnold, D. Auguste, J. Aumont, R. Aurlien, J. Austermann, S. Azzoni, C. Baccigalupi, A. J. Banday, R. Banerji, R. B. Barreiro, N. Bartolo, S. Basak, E. Battistelli, L. Bautista, J. Beall, D. Beck, S. Beckman, K. Benabed, J. Bermejo-Ballesteros, M. Bersanelli, J. Bonis, J. Borrill, F. Bouchet, F. Boulanger, S. Bounissou, M. Brilenkov, M. L. Brown, M. Bucher, E. Calabrese, M. Calvo, P. Campeti, A. Carones, F. J. Casas, A. Catalano, A. Challinor, V. Chan, K. Cheung, Y. Chinone, J. Cliche, F. Columbro, W. Coulton, J. Cubas, A. Cukierman, D. Curtis, G. D’Alessandro, K. Dachlythra, P. de Bernardis, T. de Haan, E. de la Hoz, M. De Petris, S. Della Torre, C. Dickinson, P. Diego-Palazuelos, M. Dobbs, T. Dotani, D. Douillet, L. Duband, A. Ducout, S. Duff, J. M. Duval, K. Ebisawa, T. Elleflot, H. K. Eriksen, J. Errard, T. Essinger-Hileman, F. Finelli, R. Flauger, C. Franceschet, U. Fuskeland, S. Galli, M. Galloway, K. Ganga, J. R. Gao, R. T. Genova-Santos, M. Gerbino, M. Gervasi, T. Ghigna, S. Giardiello, E. Gjerløw, M. L. Gradziel, J. Grain, L. Grandsire, F. Grupp, A. Gruppuso, J. E. Gudmundsson, N. W. Halverson, J. Hamilton, P. Hargrave, M. Hasegawa, M. Hattori, M. Hazumi, S. Henrot-Versillé, L. T. Hergt, D. Herman, D. Herranz, C. A. Hill, G. Hilton, E. Hivon, R. A. Hlozek, T. D. Hoang, A. L. Hornsby, Y. Hoshino, J. Hubmayr, K. Ichiki, T. Iida, H. Imada, K. Ishimura, H. Ishino, G. Jaehnig, M. Jones, T. Kaga, S. Kashima, N. Katayama, A. Kato, T. Kawasaki, R. Keskitalo, T. Kisner, Y. Kobayashi, N. Kogiso, A. Kogut, K. Kohri, E. Komatsu, K. Komatsu, K. Konishi, N. Krachmalnicoff, I. Kreykenbohm, C. L. Kuo, A. Kushino, L. Lamagna, J. V. Lanen, G. Laquaniello, M. Lattanzi, A. T. Lee, C. Leloup, F. Levrier, E. Linder, T. Louis, G. Luzzi, J. Macias-Perez, T. Maciaszek, B. Maffei, D. Maino, M. Maki, S. Mandelli, M. Maris, E. Martínez-González, S. Masi, M. Massa, S. Matarrese, F. T. Matsuda, T. Matsumura, L. Mele, A. Mennella, M. Migliaccio, Y. Minami, K. Mitsuda, A. Moggi, A. Monfardini, J. Montgomery, L. Montier, G. Morgante, B. Mot, Y. Murata, J. A. Murphy, M. Nagai, Y. Nagano, T. Nagasaki, R. Nagata, S. Nakamura, R. Nakano, T. Namikawa, F. Nati, P. Natoli, S. Nerval, T. Nishibori, H. Nishino, F. Noviello, C. O’Sullivan, K. Odagiri, H. Ogawa, H. Ogawa, S. Oguri, H. Ohsaki, I. S. Ohta, N. Okada, N. Okada, L. Pagano, A. Paiella, D. Paoletti, A. Passerini, G. Patanchon, V. Pelgrim, J. Peloton, F. Piacentini, M. Piat, G. Pisano, G. Polenta, D. Poletti, T. Prouvé, G. Puglisi, D. Rambaud, C. Raum, S. Realini, M. Reinecke, M. Remazeilles, A. Ritacco, G. Roudil, J. Rubino-Martin, M. Russell, H. Sakurai, Y. Sakurai, M. Sandri, M. Sasaki, G. Savini, D. Scott, J. Seibert, Y. Sekimoto, B. Sherwin, K. Shinozaki, M. Shiraishi, P. Shirron, G. Signorelli, G. Smecher, F. Spinella, S. Stever, R. Stompor, S. Sugiyama, R. Sullivan, A. Suzuki, J. Suzuki, T. L. Svalheim, E. Switzer, R. Takaku, H. Takakura, S. Takakura, Y. Takase, Y. Takeda, A. Tartari, D. Tavagnacco, A. Taylor, E. Taylor, Y. Terao, J. Thermeau, H. Thommesen, K. L. Thompson, B. Thorne, T. Toda, M. Tomasi, M. Tominaga, N. Trappe, M. Tristram, M. Tsuji, M. Tsujimoto, C. Tucker, J. Ullom, L. Vacher, G. Vermeulen, P. Vielva, F. Villa, M. Vissers, N. Vittorio, B. Wandelt, W. Wang, K. Watanuki, I. K. Wehus, J. Weller, B. Westbrook, J. Wilms, B. Winter, E. J. Wollack, N. Y. Yamasaki, T. Yoshida, J. Yumoto, A. Zacchei, M. Zannoni, A. Zonca

Journal of Low Temperature Physics 211 ( 5-6 ) 384 - 397 2022年12月

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掲載種別：研究論文（学術雑誌）出版者・発行元：Springer Science and Business Media LLC

DOI： 10.1007/s10909-022-02921-7

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その他リンク： https://link.springer.com/article/10.1007/s10909-022-02921-7/fulltext.html
Probing Cosmic Inflation with the LiteBIRD Cosmic Microwave Background Polarization Survey 招待査読

E Allys, K Arnold, J Aumont, R Aurlien, S Azzoni, C Baccigalupi, A J Banday, R Banerji, R B Barreiro, N Bartolo, L Bautista, D Beck, S Beckman, M Bersanelli, F Boulanger, M Brilenkov, M Bucher, E Calabrese, P Campeti, A Carones, F J Casas, A Catalano, V Chan, K Cheung, Y Chinone, S E Clark, F Columbro, G D’Alessandro, P de Bernardis, T de Haan, E de la Hoz, M De Petris, S Della Torre, P Diego-Palazuelos, M Dobbs, T Dotani, J M Duval, T Elleflot, H K Eriksen, J Errard, T Essinger-Hileman, F Finelli, R Flauger, C Franceschet, U Fuskeland, M Galloway, K Ganga, M Gerbino, M Gervasi, R T Génova-Santos, T Ghigna, S Giardiello, E Gjerløw, J Grain, F Grupp, A Gruppuso, J E Gudmundsson, N W Halverson, P Hargrave, T Hasebe, M Hasegawa, M Hazumi, S Henrot-Versillé, B Hensley, L T Hergt, D Herman, E Hivon, R A Hlozek, A L Hornsby, Y Hoshino, J Hubmayr, K Ichiki, T Iida, H Imada, H Ishino, G Jaehnig, N Katayama, A Kato, R Keskitalo, T Kisner, Y Kobayashi, A Kogut, K Kohri, E Komatsu, K Komatsu, K Konishi, N Krachmalnicoff, C L Kuo, L Lamagna, M Lattanzi, A T Lee, C Leloup, F Levrier, E Linder, G Luzzi, J Macias-Perez, T Maciaszek, B Maffei, D Maino, S Mandelli, E Martínez-González, S Masi, M Massa, S Matarrese, F T Matsuda, T Matsumura, L Mele, M Migliaccio, Y Minami, A Moggi, J Montgomery, L Montier, G Morgante, B Mot, Y Nagano, T Nagasaki, R Nagata, R Nakano, T Namikawa, F Nati, P Natoli, S Nerval, F Noviello, K Odagiri, S Oguri, H Ohsaki, L Pagano, A Paiella, D Paoletti, A Passerini, G Patanchon, F Piacentini, M Piat, G Polenta, D Poletti, T Prouvé, G Puglisi, D Rambaud, C Raum, S Realini, M Reinecke, M Remazeilles, A Ritacco, G Roudil, J A Rubino-Martin, M Russell, H Sakurai, Y Sakurai, M Sasaki, D Scott, Y Sekimoto, K Shinozaki, M Shiraishi, P Shirron, G Signorelli, F Spinella, S Stever, R Stompor, S Sugiyama, R M Sullivan, A Suzuki, T L Svalheim, E Switzer, R Takaku, H Takakura, Y Takase, A Tartari, Y Terao, J Thermeau, H Thommesen, K L Thompson, M Tomasi, M Tominaga, M Tristram, M Tsuji, M Tsujimoto, L Vacher, P Vielva, N Vittorio, W Wang, K Watanuki, I K Wehus, J Weller, B Westbrook, J Wilms, E J Wollack, J Yumoto, M Zannoni

Progress of Theoretical and Experimental Physics 2023 ( 4 ) 2022年11月

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担当区分：責任著者記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Oxford University Press (OUP)

Abstract

LiteBIRD the Lite (Light) satellite for the study of B-mode polarization and Inflation from cosmic background Radiation Detection, is a space mission for primordial cosmology and fundamental physics. The Japan Aerospace Exploration Agency (JAXA) selected LiteBIRD in May 2019 as a strategic large-class (L-class) mission, with an expected launch in the late 2020s using JAXA’s H3 rocket. LiteBIRD is planned to orbit the Sun-Earth Lagrangian point L2, where it will map the cosmic microwave background (CMB) polarization over the entire sky for three years, with three telescopes in 15 frequency bands between 34 and 448 GHz, to achieve an unprecedented total sensitivity of 2.2 μK-arcmin, with a typical angular resolution of 0.5○ at 100 GHz. The primary scientific objective of LiteBIRD is to search for the signal from cosmic inflation, either making a discovery or ruling out well-motivated inflationary models. The measurements of LiteBIRD will also provide us with insight into the quantum nature of gravity and other new physics beyond the standard models of particle physics and cosmology. We provide an overview of the LiteBIRD project, including scientific objectives, mission and system requirements, operation concept, spacecraft and payload module design, expected scientific outcomes, potential design extensions and synergies with other projects. Subject Index LiteBIRD cosmic inflation, cosmic microwave background, B-mode polarization, primordial gravitational waves, quantum gravity, space telescope

DOI： 10.1093/ptep/ptac150

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Design of the On-Board Data Compression for the Bolometer Data of LiteBIRD 査読

Mayu Tominaga, Masahiro Tsujimoto, Graeme Smecher, Hirokazu Ishino

JOURNAL OF LOW TEMPERATURE PHYSICS 209 ( 3-4 ) 686 - 692 2022年11月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：SPRINGER/PLENUM PUBLISHERS

LiteBIRD is a space-borne experiment dedicated to detecting large-scale B-mode anisotropies in the linear polarization of the Cosmic Microwave Background (CMB) predicted by the theory of inflation. It is planned to be launched in the late 2020s to the second Lagrange point (L2) of the Sun-Earth system. LiteBIRD will map the sky in 15 frequency bands. In comparison with Planck HFI, the previous lowtemperature bolometer-based satellite for CMB observations, the number of detector has increased by two orders of magnitude, up to similar to 5000 detectors in total. The data rate is 19 Hz from each detector. The bandpass to the ground is limited to 10 Mbps using the X-band for a few hours per day. These require the data to be compressed by more than 50%. The exact value depends on how much information entropy is contained in the real data. We have thus evaluated the compression by simulating the time-ordered data of polarization-sensitive bolometers. The foreground emission, detector noise, cosmic ray glitches, leakage from the CMB intensity to polarization, etc., are simulated. We investigated several algorithms and demonstrated that the required compression ratio can be achieved by some of them. We describe the details of this evaluation and propose algorithms that can be employed in the on-board digital electronics of LiteBIRD.

DOI： 10.1007/s10909-022-02839-0

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Detailed study of HWP non-idealities and their impact on future measurements of CMB polarization anisotropies from space 査読

S. Giardiello, M. Gerbino, L. Pagano, J. Errard, A. Gruppuso, H. Ishino, M. Lattanzi, P. Natoli, G. Patanchon, F. Piacentini, G. Pisano

Astronomy & Astrophysics 658 A15 - A15 2022年2月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：EDP Sciences

We study the propagation of a specific class of instrumental systematics to the reconstruction of the B-mode power spectrum of the cosmic microwave background (CMB). We focus on the non-idealities of the half-wave plate (HWP), a polarization modulator that is to be deployed by future CMB experiments, such as the phase-A satellite mission LiteBIRD. We study the effects of non-ideal HWP properties, such as transmittance, phase shift, and cross-polarization. To this end, we developed a simple, yet stand-alone end-to-end simulation pipeline adapted to LiteBIRD. We analyzed the effects of a possible mismatch between the measured frequency profiles of HWP properties (used in the mapmaking stage of the pipeline) and the actual profiles (used in the sky-scanning step). We simulated single-frequency, CMB-only observations to emphasize the effects of non-idealities on the BB power spectrum. We also considered multi-frequency observations to account for the frequency dependence of HWP properties and the contribution of foreground emission. We quantified the systematic effects in terms of a bias Δr on the tensor-to-scalar ratio, r, with respect to the ideal case without systematic effects. We derived the accuracy requirements on the measurements of HWP properties by requiring Δr < 10⁻⁵ (1% of the expected LiteBIRD sensitivity on r). Our analysis is introduced by a detailed presentation of the mathematical formalism employed in this work, including the use of the Jones and Mueller matrix representations.

DOI： 10.1051/0004-6361/202141619

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Mechanical strength and millimeter-wave transmittance spectrum of stacked sapphire plates bonded by sodium silicate solution 査読

Takayuki Toda, Yuki Sakurai, Hirokazu Ishino, Tomotake Matsumura, Kunimoto Komatsu, Nobuhiko Katayama

JOURNAL OF ASTRONOMICAL TELESCOPES INSTRUMENTS AND SYSTEMS 8 ( 1 ) 2022年1月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS

The polarization modulator unit for the low-frequency telescope in LiteBIRD employs an achromatic half-wave plate (AHWP). It consists of five layers of a-cut sapphire plate, which are stacked based on a Pancharatnam recipe. In this way, the retardance of the AHWP is a half-wave over a bandwidth of 34 to 161 GHz. The diameter of a single sapphire plate is about 500 mm and the thickness is 5 mm. When a large-diameter AHWP is used for a space mission, it is important for the AHWP to survive launch vibration. A preliminary study indicates that the five-layer stacked HWP has a risk of breakage at the launch unless the five layers are glued together and mechanically treated as one disk. We report our investigation using a sodium silicate solution that can bond the sapphire plates. This technique has been previously investigated as a candidate of cryogenic bonding for a mirror material, including sapphire, of the gravitational wave experiments: LIGO, VIRGO, and KAGRA. We experimentally studied the mechanical strength of the bonded interface for two different surface conditions: polished and unpolished. We demonstrated that the tensile and shear strength >20 MPa for samples with a polished surface. This satisfied the requirement of 5.5 MPa derived from the mechanical simulation assuming a launch load of 30 G. We identified that samples glued on a polished surface exhibit higher strength than unpolished ones by a factor of 2 for tensile and 18 for shear strength. We measured the millimeter-wave transmittance between 90 and 140 GHz using sapphire plates with a diameter of 50 mm before and after bonding. We did not find any optical effects caused by the bonded interface within 2% error in transmittance, which originates from the measurement system. (C) 2022 Society of Photo-Optical Instrumentation Engineers (SPIE)

DOI： 10.1117/1.JATIS.8.1.014008

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Assessment of the cosmic-ray impacts for LiteBIRD using Geant4 simulation

Mayu Tominaga, Masahiro Tsujimoto, Hirokazu Ishino, Samantha L. Stever, Serika Tsukatsune

SPACE TELESCOPES AND INSTRUMENTATION 2022: OPTICAL, INFRARED, AND MILLIMETER WAVE 12180 2022年

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記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）出版者・発行元：SPIE-INT SOC OPTICAL ENGINEERING

LiteBIRD is a space-borne experiment dedicated to detecting large-scale B-mode anisotropies of the linear polarization of the cosmic microwave background (CMB) predicted by the theory of inflation. It is planned to be launched in the late 2020s to the second Lagrangean point of the Sun-Earth system and map the sky in 15 frequency bands using thousands of transition edge sensor bolometers. LiteBIRD will be exposed to the cosmic-ray radiation throughout its lifetime, which may lead to the degradation of the scientific performance. Energy deposition by cosmic rays upon the focal plane bolometer detectors is considered a serious source of systematic effects. For a quantitative assessment of the effect, we present the result of Geant4 simulations to estimate the energy deposited by cosmic rays into the focal plane. We simulated different cosmic-ray components using CAD-based spacecraft models. We derive the spatial and energy distribution of the particles in the focal plane.

DOI： 10.1117/12.2629759

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Search for tens of MeV neutrinos associated with gamma-ray bursts in Super-Kamiokande 査読

A Orii, K Abe, C Bronner, Y Hayato, M Ikeda, S Imaizumi, H Ito, J Kameda, Y Kataoka, Y Kato, Y Kishimoto, M Miura, S Moriyama, T Mochizuki, Y Nagao, M Nakahata, Y Nakajima, S Nakayama, T Okada, K Okamoto, G Pronost, H Sekiya, M Shiozawa, Y Sonoda, Y Suzuki, A Takeda, Y Takemoto, A Takenaka, H Tanaka, T Yano, S Han, T Kajita, K Okumura, T Tashiro, R Wang, J Xia, G D Megias, D Bravo-Berguño, L Labarga, Ll Marti, B Zaldivar, F, d M Blaszczyk, E Kearns, J L Raaf, J L Stone, L Wan, T Wester, B W Pointon, J Bian, N J Griskevich, W R Kropp, S Locke, S Mine, M B Smy, H W Sobel, V Takhistov, P Weatherly, K S Ganezer, J Hill, J Y Kim, I T Lim, R G Park, B Bodur, K Scholberg, C W Walter, L Bernard, A Coffani, O Drapier, S El Hedri, A Giampaolo, M Gonin, Th A Mueller, P Paganini, B Quilain, T Ishizuka, T Nakamura, J S Jang, J G Learned, S Matsuno, L H V Anthony, R P Litchfield, A A Sztuc, Y Uchida, V Berardi, M G Catanesi, E Radicioni, N F Calabria, L N Machado, G De Rosa, G Collazuol, F Iacob, M Lamoureux, N Ospina, L Ludovici, Y Nishimura, S Cao, M Friend, T Hasegawa, T Ishida, T Kobayashi, M Jakkapu, T Matsubara, T Nakadaira, K Nakamura, Y Oyama, K Sakashita, T Sekiguchi, T Tsukamoto, T Boschi, F Di Lodovico, S Molina Sedgwick, M Taani, S Zsoldos, M Hasegawa, Y Isobe, H Miyabe, Y Nakano, T Shiozawa, T Sugimoto, A T Suzuki, Y Takeuchi, S Yamamoto, A Ali, Y Ashida, J Feng, S Hirota, M Jiang, A K Ichikawa, T Kikawa, M Mori, K E Nakamura, T Nakaya, R A Wendell, K Yasutome, P Fernandez, N McCauley, P Mehta, A Pritchard, K M Tsui, Y Fukuda, Y Itow, H Menjo, T Niwa, K Sato, M Tsukada, P Mijakowski, K Frankiewicz, C K Jung, C Vilela, M J Wilking, C Yanagisawa, D Fukuda, M Harada, K Hagiwara, T Horai, H Ishino, S Ito, Y Koshio, W Ma, N Piplani, S Sakai, M Sakuda, Y Takahira, C Xu, Y Kuno, G Barr, D Barrow, L Cook, A Goldsack, S Samani, C Simpson, D Wark, F Nova, J Y Yang, S J Jenkins, M Malek, J M McElwee, O Stone, M D Thiesse, L F Thompson, H Okazawa, Y Choi, S B Kim, I Yu, K Nishijima, M Koshiba, K Iwamoto, N Ogawa, M Yokoyama, K Martens, M R Vagins, S Izumiyama, M Kuze, M Tanaka, T Yoshida, M Inomoto, M Ishitsuka, R Matsumoto, K Ohta, M Shinoki, J F Martin, C M Nantais, H A Tanaka, T Towstego, R Akutsu, M Hartz, A Konaka, P de Perio, N W Prouse, S Chen, B D Xu, M Posiadala-Zezula, B Richards, B Jamieson, J Walker, A Minamino, K Okamoto, G Pintaudi, R Sasaki

Progress of Theoretical and Experimental Physics 2021 ( 10 ) 1 - 19 2021年10月

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1093/ptep/ptab081

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その他リンク： http://academic.oup.com/ptep/article-pdf/2021/10/103F01/40665506/ptab081.pdf
Simulations of systematic effects arising from cosmic rays in the LiteBIRD space telescope, and effects on the measurements of CMB B-modes 査読

S.L. Stever, T. Ghigna, M. Tominaga, G. Puglisi, M. Tsujimoto, M. Zeccoli Marazzini, M. Baratto, M. Tomasi, Y. Minami, S. Sugiyama, A. Kato, T. Matsumura, H. Ishino, G. Patanchon, M. Hazumi

Journal of Cosmology and Astroparticle Physics 09 ( 013 ) 1 - 22 2021年9月

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1088/1475-7516/2021/09/013

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その他リンク： https://iopscience.iop.org/article/10.1088/1475-7516/2021/09/013/pdf
Design of a frequency-independent optic axis Pancharatnam-based achromatic half-wave plate 査読

Kunimoto Komatsu, Hirokazu Ishino, Nobuhiko Katayama, Tomotake Matsumura, Yuki Sakurai

Journal of Astronomical Telescopes, Instruments, and Systems 7 ( 03 ) 1 - 13 2021年8月

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担当区分：責任著者記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1117/1.jatis.7.3.034005

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LiteBIRD satellite: JAXA's new strategic L-class mission for all-sky surveys of cosmic microwave background polarization 査読

Masashi Hazumi, Peter A. Ade, Alexandre Adler, Erwan Allys, Kam Arnold, Didier Auguste, Jonathan Aumont, Ragnhild Aurlien, Jason Austermann, Carlo Baccigalupi, Anthony J. Banday, R. Banjeri, Rita B. Barreiro, Soumen Basak, Jim Beall, Dominic Beck, Shawn Beckman, Juan Bermejo, Paolo de Bernardis, Marco Bersanelli, Julien Bonis, Julian Borrill, Francois Boulanger, Sophie Bounissou, Maksym Brilenkov, Michael Brown, Martin Bucher, Erminia Calabrese, Paolo Campeti, Alessandro Carones, Francisco J. Casas, Anthony Challinor, Victor Chan, Kolen Cheung, Yuji Chinone, Jean F. Cliche, Loris Colombo, Fabio Columbro, Javier Cubas, Ari Cukierman, David Curtis, Giuseppe D'Alessandro, Nadia Dachlythra, Marco De Petris, Clive Dickinson, Patricia Diego-Palazuelos, Matt Dobbs, Tadayasu Dotani, Lionel Duband, Shannon Duff, Jean M. Duval, Ken Ebisawa, Tucker Elleflot, Hans K. Eriksen, Josquin Errard, Thomas Essinger-Hileman, Fabio Finelli, Raphael Flauger, Cristian Franceschet, Unni Fuskeland, Mathew Galloway, Ken Ganga, Jian R. Gao, Ricardo Genova-Santos, Martina Gerbino, Massimo Gervasi, Tommaso Ghigna, Eirik Gjerløw, Marcin L. Gradziel, Julien Grain, Frank Grupp, Alessandro Gruppuso, Jon E. Gudmundsson, Tijmen de Haan, Nils W. Halverson, Peter Hargrave, Takashi Hasebe, Masaya Hasegawa, Makoto Hattori, Sophie Henrot-Versillé, Daniel Herman, Diego Herranz, Charles A. Hill, Gene Hilton, Yukimasa Hirota, Eric Hivon, Renee A. Hlozek, Yurika Hoshino, Elena de la Hoz, Johannes Hubmayr, Kiyotomo Ichiki, Teruhito Iida, Hiroaki Imada, Kosei Ishimura, Hirokazu Ishino, Greg Jaehnig, Tooru Kaga, Shingo Kashima, Nobuhiko Katayama, Akihiro Kato, Takeo Kawasaki, Reijo Keskitalo, Theodore Kisner, Yohei Kobayashi, Nozomu Kogiso, Alan Kogut, Kazunori Kohri, Eiichiro Komatsu, Kunimoto Komatsu, Kuniaki Konishi, Nicoletta Krachmalnicoff, Ingo Kreykenbohm, Chao-Lin L. Kuo, Akihiro Kushino, Luca Lamagna, Jeff V. Lanen, Massimiliano Lattanzi, Adrian T. Lee, Clément Leloup, François Levrier, Eric Linder, Thibaut Louis, Gemma Luzzi, Thierry Maciaszek, Bruno Maffei, Davide Maino, Muneyoshi Maki, Stefano Mandelli, Enrique Martinez-Gonzalez, Silvia Masi, Tomotake Matsumura, Aniello Mennella, Marina Migliaccio, Yuto Minami, Kazuhisa Mitsuda, Joshua Montgomery, Ludovic Montier, Gianluca Morgante, Baptiste Mot, Yasuhiro Murata, John A. Murphy, Makoto Nagai, Yuya Nagano, Taketo Nagasaki, Ryo Nagata, Shogo Nakamura, Toshiya Namikawa, Paolo Natoli, Simran Nerval, Toshiyuki Nishibori, Haruki Nishino, Fabio Noviello, Créidhe O'Sullivan, Hideo Ogawa, Hiroyuki Ogawa, Shugo Oguri, Hiroyuki Ohsaki, Izumi S. Ohta, Norio Okada, Nozomi Okada, Luca Pagano, Alessandro Paiella, Daniela Paoletti, Guillaume Patanchon, Julien Peloton, Francesco Piacentini, Giampaolo Pisano, Gianluca Polenta, Davide Poletti, Thomas Prouvé, Giuseppe Puglisi, Damien Rambaud, Christopher Raum, Sabrina Realini, Martin Reinecke, Mathieu Remazeilles, Alessia Ritacco, Gilles Roudil, Jose A. Rubino-Martin, Megan Russell, Haruyuki Sakurai, Yuki Sakurai, Maura Sandri, Manami Sasaki, Giorgio Savini, Douglas Scott, Joseph Seibert, Yutaro Sekimoto, Blake Sherwin, Keisuke Shinozaki, Maresuke Shiraishi, Peter Shirron, Giovanni Signorelli, Graeme Smecher, Samantha Stever, Radek Stompor, Hajime Sugai, Shinya Sugiyama, Aritoki Suzuki, Junichi Suzuki, Trygve L. Svalheim, Eric Switzer, Ryota Takaku, Hayato Takakura, Satoru Takakura, Yusuke Takase, Youichi Takeda, Andrea Tartari, Ellen Taylor, Yutaka Terao, Harald Thommesen, Keith L. Thompson, Ben Thorne, Takayuki Toda, Maurizio Tomasi, Mayu Tominaga, Neil Trappe, Matthieu Tristram, Masatoshi Tsuji, Masahiro Tsujimoto, Carole Tucker, Joe Ullom, Gerard Vermeulen, Patricio Vielva, Fabrizio Villa, Michael Vissers, Nicola Vittorio, Ingunn Wehus, Jochen Weller, Benjamin Westbrook, Joern Wilms, Berend Winter, Edward J. Wollack, Noriko Y. Yamasaki, Tetsuya Yoshida, Junji Yumoto, Mario Zannoni, Andrea Zonca

Space Telescopes and Instrumentation 2020: Optical, Infrared, and Millimeter Wave 11443 ( 114432F ) 1 - 20 2020年12月

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記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）

DOI： 10.1117/12.2563050

Web of Science

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Concept design of low frequency telescope for CMB B-mode polarization satellite LiteBIRD 査読

Yutaro Sekimoto, Peter Ade, Alexandre Adler, Erwan Allys, Kam Arnold, Didier Auguste, Jonathan Aumont, Ragnhild Aurlien, Jason Austermann, Carlo Baccigalupi, Anthony Banday, Ranajoy Banerji, Rita Barreiro, Soumen Basak, Jim Beall, Dominic Beck, Shawn Beckman, Juan Bermejo, Paolo de Bernardis, Marco Bersanelli, Julien Bonis, Julian Borrill, Francois Boulanger, Sophie Bounissou, Maksym Brilenkov, Michael Brown, Martin Bucher, Erminia Calabrese, Paolo Campeti, Alessandro Carones, Francisco Casas, Anthony Challinor, Victor Chan, Kolen Cheung, Yuji Chinone, Jean Cliche, Loris Colombo, Fabio Columbro, Javier Cubas, Ari Cukierman, David Curtis, Giuseppe D'Alessandro, Nadia Dachlythra, Marco De Petris, Clive Dickinson, Patricia Diego-Palazuelos, Matt Dobbs, Tadayasu Dotani, Lionel Duband, Shannon Duff, Jean Duval, Ken Ebisawa, Tucker Elleflot, Hans Eriksen, Josquin Errard, Thomas Essinger-Hileman, Fabio Finelli, Raphael Flauger, Cristian Franceschet, Unni Fuskeland, Mathew Galloway, Ken Ganga, Jian Gao, Ricardo Genova-Santos, Martina Gerbino, Massimo Gervasi, Tommaso Ghigna, Eirik Gjerløw, Marcin Gradziel, Julien Grain, Frank Grupp, Alessandro Gruppuso, Jon Gudmundsson, Tijmen de Haan, Nils Halverson, Peter Hargrave, Takashi Hasebe, Masaya Hasegawa, Makoto Hattori, Masashi Hazumi, Sophie Henrot-Versillé, Daniel Herman, Diego Herranz, Charles Hill, Gene Hilton, Yukimasa Hirota, Eric hivon, Renee Hlozek, Yurika Hoshino, Elena de la Hoz, Johannes Hubmayr, Kiyotomo Ichiki, Teruhito iida, Hiroaki Imada, Kosei Ishimura, Hirokazu Ishino, Greg Jaehnig, Tooru Kaga, Shingo Kashima, Nobuhiko Katayama, Akihiro Kato, Takeo Kawasaki, Reijo Keskitalo, Theodore Kisner, Yohei Kobayashi, Nozomu Kogiso, Alan Kogut, Kazunori Kohri, Eiichiro Komatsu, Kunimoto Komatsu, Kuniaki Konishi, Nicoletta Krachmalnicoff, Ingo Kreykenbohm, Chao-Lin Kuo, Akihiro Kushino, Luca Lamagna, Jeff Lanen, Massimiliano Lattanzi, Adrien Lee, Clément Leloup, François Levrier, Eric Linder, Thibaut Louis, Gemma Luzzi, Thierry Maciaszek, Bruno Maffei, Davide Maino, Muneyoshi Maki, Stefano Mandelli, Enrique Martinez-Gonzalez, Silvia Masi, Tomotake Matsumura, Aniello Mennella, Marina Migliaccio, Yuto Minanmi, Kazuhisa Mitsuda, Josua Montgomery, Ludovic Montier, Gianluca Morgante, Baptise Mot, Yasuhiro Murata, John Murphy, Makoto Nagai, Yuya Nagano, Takeo Nagasaki, Ryo Nagata, Shogo Nakamura, Toshiya Namikawa, Paolo Natoli, Simran Nerval, Toshiyuki Nishibori, Haruki Nishino, Créidhe O'Sullivan, Hideo Ogawa, Hiroyuki Ogawa, Shogo Oguri, Hiroyuki Osaki, Izumi Ohta, Norio Okada, Nozomi Okada, Luca Pagano, Alessandro Paiella, Daniela Paoletti, Guillaume Patanchon, Julien Peloton, Francesco Piacentini, Giampaolo Pisano, Gianluca Polenta, Davide Poletti, Thomas Prouvé, Giuseppe Puglisi, Damien Tambaud, Christopher Raum, Sabrina Realini, Martin Reinecke, Mathieu Remazeilles, Alessa Ritacco, Gilles Roudil, Jose Rubino-Martin, Megan Russell, Haruyuki Sakurai, Yuki Sakurai, Maura Sandri, Manami Sasaki, Giorgio Savini, Douglas Scott, Joseph Seibert, Blake Sherwin, Keisuke Shinozaki, Maresuke Shiraishi, Peter Shirron, Giovanni Signorelli, Graeme Smecher, Samantha Stever, Radek Stompor, Hajime Sugai, Shinya Sugiyama, aritoki Suzuki, Junichi Suzuki, Trygve Svalheim, Eric Switzer, Ryota Takaku, hayato Takakura, satoru Takakura, Yusuke Takase, Youichi Takeda, Andrea Tartari, Ellen Taylor, Yutaka Terao, Harald Thommesen, Keith L. Thompson, Ben Thorne, Takayuki Toda, Maurizio Tomasi, Mayu Tominaga, Neil Trappe, Matthieu Tristram, Masatoshi Tsuji, Masahiro Tsujimoto, Carole Tucker, Joe Ullom, Gerard Vermeulen, Patricio Vielva, Fabrizio Villa, Michael Vissers, Nicola Vittorio, Ingunn Wehus, Jochen Weller, Benjamin Westbrook, Joern Wilms, Berend Winter, Edward Wollack, Noriko Y. Yamasaki, Tetsuya Yoshida, Junji Yumoto, Mario Zannoni, Andrea Zonca

Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X 11453 ( 1145310 ) 1 - 21 2020年12月

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記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）

DOI： 10.1117/12.2561841

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Demonstration of anti-reflective structures over a large area for CMB polarization experiments 査読

Ryota Takaku, Shaul Hanany, Yurika Hoshino, Hiroaki Imada, Hirokazu Ishino, Nobuhiko Katayama, Kunimoto Komatsu, Kuniaki Konishi, Makoto Kuwata Gonokami, Tomotake Matsumura, Kazuhisa Mitsuda, Haruyuki Sakurai, Yuki Sakurai, Qi Wen, Noriko Yamasaki, Karl Young, Junji Yumoto

Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X 11453 ( 114531A ) 1 - 12 2020年12月

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記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）

DOI： 10.1117/12.2562028

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Overview of the medium and high frequency telescopes of the LiteBIRD space mission

Ludovic Montier, Baptiste Mot, Paolo de Bernardis, Bruno Maffei, Giampaolo Pisano, Fabio Columbro, Jon E. Gudmundsson, Sophie Henrot-Versillé, Luca Lamagna, Joshua Montgomery, Thomas Prouvé, Megan Russell, Giorgio Savini, Samantha Stever, Keith L. Thompson, Masahiro Tsujimoto, Carole Tucker, Benjamin Westbrook, Peter A. Ade, Alexandre Adler, Erwan Allys, Kam Arnold, Didier Auguste, Jonathan Aumont, Ragnhild Aurlien, Jason Austermann, Carlo Baccigalupi, Anthony J. Banday, Ranajoy Banerji, Rita B. Barreiro, Soumen Basak, Jim Beall, Dominic Beck, Shawn Beckman, Juan Bermejo, Marco Bersanelli, Julien Bonis, Julian Borrill, Francois Boulanger, Sophie Bounissou, Maksym Brilenkov, Michael Brown, Martin Bucher, Erminia Calabrese, Paolo Campeti, Alessandro Carones, Francisco J. Casas, Anthony Challinor, Victor Chan, Kolen Cheung, Yuji Chinone, Jean F. Cliche, Loris Colombo, Javier Cubas, Ari Cukierman, David Curtis, Giuseppe D'Alessandro, Nadia Dachlythra, Marco De Petris, Clive Dickinson, Patricia Diego-Palazuelos, Matt Dobbs, Tadayasu Dotani, Lionel Duband, Shannon Duff, Jean M. Duval, Ken Ebisawa, Tucker Elleflot, Hans K. Eriksen, Josquin Errard, Thomas Essinger-Hileman, Fabio Finelli, Raphael Flauger, Cristian Franceschet, Unni Fuskeland, Mathew Galloway, Ken Ganga, Jian R. Gao, Ricardo Genova-Santos, Martina Gerbino, Massimo Gervasi, Tommaso Ghigna, Eirik Gjerløw, Marcin L. Gradziel, Julien Grain, Frank Grupp, Alessandro Gruppuso, Tijmen de Haan, Nils W. Halverson, Peter Hargrave, Takashi Hasebe, Masaya Hasegawa, Makoto Hattori, Masashi Hazumi, Daniel Herman, Diego Herranz, Charles A. Hill, Gene Hilton, Yukimasa Hirota, Eric Hivon, Renee A. Hlozek, Yurika Hoshino, Elena de la Hoz, Johannes Hubmayr, Kiyotomo Ichiki, Teruhito Iida, Hiroaki Imada, Kosei Ishimura, Hirokazu Ishino, Greg Jaehnig, Tooru Kaga, Shingo Kashima, Nobuhiko Katayama, Akihiro Kato, Takeo Kawasaki, Reijo Keskitalo, Theodore Kisner, Yohei Kobayashi, Nozomu Kogiso, Alan Kogut, Kazunori Kohri, Eiichiro Komatsu, Kunimoto Komatsu, Kuniaki Konishi, Nicoletta Krachmalnicoff, Ingo Kreykenbohm, Chao-Lin L. Kuo, Akihiro Kushino, Jeff V. Lanen, Massimiliano Lattanzi, Adrian T. Lee, Clément Leloup, François Levrier, Eric Linder, Thibaut Louis, Gemma Luzzi, Thierry Maciaszek, Davide Maino, Muneyoshi Maki, Stefano Mandelli, Enrique Martinez-Gonzalez, Silvia Masi, Tomotake Matsumura, Aniello Mennella, Marina Migliaccio, Yuto Minami, Kazuhisa Mitsuda, Gianluca Morgante, Yasuhiro Murata, John A. Murphy, Makoto Nagai, Yuya Nagano, Taketo Nagasaki, Ryo Nagata, Shogo Nakamura, Toshiya Namikawa, Paolo Natoli, Simran Nerval, Toshiyuki Nishibori, Haruki Nishino, Créidhe O'Sullivan, Hideo Ogawa, Hiroyuki Ogawa, Shugo Oguri, Hiroyuki Ohsaki, Izumi S. Ohta, Norio Okada, Nozomi Okada, Luca Pagano, Alessandro Paiella, Daniela Paoletti, Guillaume Patanchon, Julien Peloton, Francesco Piacentini, Gianluca Polenta, Davide Poletti, Giuseppe Puglisi, Damien Rambaud, Christopher Raum, Sabrina Realini, Martin Reinecke, Mathieu Remazeilles, Alessia Ritacco, Gilles Roudil, Jose A. Rubino-Martin, Haruyuki Sakurai, Yuki Sakurai, Maura Sandri, Manami Sasaki, Douglas Scott, Joseph Seibert, Yutaro Sekimoto, Blake Sherwin, Keisuke Shinozaki, Maresuke Shiraishi, Peter Shirron, Giovanni Signorelli, Graeme Smecher, Radek Stompor, Hajime Sugai, Shinya Sugiyama, Aritoki Suzuki, Junichi Suzuki, Trygve L. Svalheim, Eric Switzer, Ryota Takaku, Hayato Takakura, Satoru Takakura, Yusuke Takase, Youichi Takeda, Andrea Tartari, Ellen Taylor, Yutaka Terao, Harald Thommesen, Ben Thorne, Takayuki Toda, Maurizio Tomasi, Mayu Tominaga, Neil Trappe, Matthieu Tristram, Masatoshi Tsuji, Joe Ullom, Gerard Vermeulen, Patricio Vielva, Fabrizio Villa, Michael Vissers, Nicola Vittorio, Ingunn Wehus, Jochen Weller, Joern Wilms, Berend Winter, Edward J. Wollack, Noriko Y. Yamasaki, Tetsuya Yoshida, Junji Yumoto, Mario Zannoni, Andrea Zonca

Space Telescopes and Instrumentation 2020: Optical, Infrared, and Millimeter Wave 2020年12月

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掲載種別：研究論文（国際会議プロシーディングス）出版者・発行元：SPIE

DOI： 10.1117/12.2562243

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Broadband, millimeter-wave anti-reflective structures on sapphire ablated with femto-second laser 査読

R. Takaku, S. Hanany, H. Imada, H. Ishino, N. Katayama, K. Komatsu, K. Konishi, M. Kuwata-Gonokami, T. Matsumura, K. Mitsuda, H. Sakurai, Y. Sakurai, Q. Wen, N. Y. Yamasaki, K. Young, J. Yumoto

Journal of Applied Physics 128 ( 225302 ) 1 - 11 2020年12月

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1063/5.0022765

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Search for proton decay via p -> e(+)pi(0) and p -> mu(+)pi(0) with an enlarged fiducial volume in Super-Kamiokande I-IV 査読

A. Takenaka, K. Abe, C. Bronner, Y. Hayato, M. Ikeda, S. Imaizumi, H. Ito, J. Kameda, Y. Kataoka, Y. Kato, Y. Kishimoto, Ll Marti, M. Miura, S. Moriyama, T. Mochizuki, Y. Nagao, M. Nakahata, Y. Nakajima, S. Nakayama, T. Okada, K. Okamoto, A. Orii, G. Pronost, H. Sekiya, M. Shiozawa, Y. Sonoda, Y. Suzuki, A. Takeda, Y. Takemoto, H. Tanaka, T. Yano, R. Akutsu, S. Han, T. Kajita, K. Okumura, T. Tashiro, R. Wang, J. Xia, D. Bravo-Berguno, L. Labarga, P. Fernandez, B. Zaldivar, F. D. M. Blaszczyk, E. Kearns, J. L. Raaf, J. L. Stone, L. Wan, T. Wester, B. W. Pointon, J. Bian, N. J. Griskevich, W. R. Kropp, S. Locke, S. Mine, M. B. Smy, H. W. Sobel, Takhistov, V, P. Weatherly, K. S. Ganezer, J. Hill, J. Y. Kim, I. T. Lim, R. G. Park, B. Bodur, K. Scholberg, C. W. Walter, A. Coffani, O. Drapier, S. El Hedri, A. Giampaolo, M. Gonin, Th A. Mueller, P. Paganini, B. Quilain, T. Ishizuka, T. Nakamura, J. S. Jang, J. G. Learned, S. Matsuno, L. H. Anthony, R. P. Litchfield, A. A. Sztuc, Y. Uchida, Berardi, V, M. G. Catanesi, E. Radicioni, N. F. Calabria, L. N. Machado, G. De Rosa, G. Collazuol, F. Iacob, M. Lamoureux, N. Ospina, L. Ludovici, Y. Nishimura, S. Cao, M. Friend, T. Hasegawa, T. Ishida, M. Jakkapu, T. Kobayashi, T. Matsubara, T. Nakadaira, K. Nakamura, Y. Oyama, K. Sakashita, T. Sekiguchi, T. Tsukamoto, M. Hasegawa, Y. Isobe, H. Miyabe, Y. Nakano, T. Shiozawa, T. Sugimoto, A. T. Suzuki, Y. Takeuchi, S. Yamamoto, A. Ali, Y. Ashida, J. Feng, S. Hirota, A. K. Ichikawa, M. Jiang, T. Kikawa, M. Mori, K. E. Nakamura, T. Nakaya, R. A. Wendell, K. Yasutome, N. McCauley, P. Mehta, A. Pritchard, K. M. Tsui, Y. Fukuda, Y. Itow, H. Menjo, T. Niwa, K. Sato, M. Taani, M. Tsukada, P. Mijakowski, K. Frankiewicz, C. K. Jung, G. Santucci, C. Vilela, M. J. Wilking, C. Yanagisawa, D. Fukuda, M. Harada, K. Hagiwara, T. Horai, H. Ishino, S. Ito, Y. Koshio, K. Ma, N. Piplani, S. Sakai, M. Sakuda, Y. Takahira, C. Xu, Y. Kuno, G. Barr, D. Barrow, L. Cook, C. Simpson, D. Wark, F. Nova, T. Boschi, F. Di Lodovico, S. Molina Segwick, S. Zsoldos, J. Y. Yang, S. J. Jenkins, J. M. McElwee, M. D. Thiesse, L. F. Thompson, H. Okazawa, Y. Choi, S. B. Kim, Yu, I, K. Nishijima, M. Koshiba, K. Iwamoto, N. Ogawa, M. Yokoyama, A. Goldsack, K. Martens, M. R. Vagins, M. Kuze, M. Tanaka, T. Yoshida, M. Inomoto, M. Ishitsuka, R. Matsumoto, K. Ohta, M. Shinoki, J. F. Martin, C. M. Nantais, H. A. Tanaka, T. Towstego, M. Hartz, A. Konaka, P. de Perio, N. W. Prouse, S. Chen, B. D. Xu, M. Posiadala-Zezula, B. Richards, B. Jamieson, J. Walker, A. Minamino, K. Okamoto, G. Pintaudi, R. Sasaki

PHYSICAL REVIEW D 102 ( 11 ) 2020年12月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We have searched for proton decay via p -> e(+)pi(0) and p -> mu(+)pi(0) modes with the enlarged fiducial volume data of Super-Kamiokande from April 1996 to May 2018, which corresponds to 450 kton . years exposure. We have accumulated about 25% more livetime and enlarged the fiducial volume of the SuperKamiokande detector from 22.5 kton to 27.2 kton for this analysis, so that 144 kton . years of data, including 78 kton . years of additional fiducial volume data, has been newly analyzed. No candidates have been found for p -> e(+)pi(0) and one candidate remains for p -> mu(+)pi(0) in the conventional 22.5 kton fiducial volume and it is consistent with the atmospheric neutrino background prediction. We set lower limits on the partial lifetime for each of these modes: tau/B(p -> e(+)pi(0)) > 2.4 x 10(34) years and tau/B(p -> mu(+)pi(0))> 1.6 x 10(34) years at 90% confidence level.

DOI： 10.1103/PhysRevD.102.112011

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Requirements for future CMB satellite missions: photometric and band-pass response calibration 査読

T. Ghigna, T. Matsumura, G. Patanchon, H. Ishino, M. Hazumi

Journal of Cosmology and Astroparticle Physics 11 ( 030 ) 1 - 23 2020年11月

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担当区分：責任著者記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1088/1475-7516/2020/11/030

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その他リンク： https://iopscience.iop.org/article/10.1088/1475-7516/2020/11/030
Indirect search for dark matter from the Galactic Center and halo with the Super-Kamiokande detector 査読

K. Abe, C. Bronner, Y. Haga, Y. Hayato, M. Ikeda, S. Imaizumi, H. Ito, K. Iyogi, J. Kameda, Y. Kataoka, Y. Kato, Y. Kishimoto, Ll. Marti, M. Miura, S. Moriyama, T. Mochizuki, Y. Nagao, M. Nakahata, Y. Nakajima, T. Nakajima, S. Nakayama, T. Okada, K. Okamoto, A. Orii, G. Pronost, H. Sekiya, M. Shiozawa, Y. Sonoda, A. Takeda, A. Takenaka, H. Tanaka, S. Tasaka, T. Tomura, K. Ueno, T. Yano, T. Yokozawa, R. Akutsu, S. Han, T. Irvine, T. Kajita, I. Kametani, K. P. Lee, T. McLachlan, K. Okumura, E. Richard, T. Tashiro, R. Wang, J. Xia, D. Bravo-Berguño, L. Labarga, P. Fernandez, F. d. M. Blaszczyk, J. Gustafson, C. Kachulis, E. Kearns, J. L. Raaf, J. L. Stone, L. R. Sulak, S. Sussman, L. Wan, T. Wester, S. Berkman, S. Tobayama, J. Bian, G. Carminati, M. Elnimr, N. J. Griskevich, W. R. Krop, S. Locke, S. Mine, A. Renshaw, M. B. Smy, H. W. Sobel, V. Takhistov, P. Weatherly, B. L. Hartfiel, J. Hill, W. E. Keig, N. Hong, J. Y. Kim, I. T. Lim, R. G. Park, T. Akiri, B. Bodur, A. Himmel, Z. Li, E. O’Sullivan, K. Scholberg, C. W. Walter, T. Wongjirad, A. Coffani, O. Drapier, S. El Hedri, A. Giampaolo, M. Gonin, J. Imber, Th. A. Mueller, P. Paganini, B. Quilain, T. Ishizuka, T. Nakamura, J. S. Jang, K. Choi, J. G. Learned, S. Matsuno, S. N. Smith, J. Amey, L. H. V. Anthony, R. P. Litchfield, W. Y. Ma, A. A. Sztuc, Y. Uchida, M. O. Wascko, V. Berardi, M. G. Catanesi, R. A. Intonti, E. Radicioni, N. F. Calabria, L. N. Machado, G. De Rosa, G. Collazuol, F. Iacob, M. Lamoureux, N. Ospina, L. Ludovici, T. Boschi, F. Di Lodovico, S. Molina Sedgwick, S. Zsoldos, Y. Nishimura, S. Cao, M. Friend, T. Hasegawa, T. Ishida, T. Ishii, T. Kobayashi, T. Nakadaira, K. Nakamura, Y. Oyama, K. Sakashita, T. Sekiguchi, T. Tsukamoto, KE. Abe, M. Hasegawa, Y. Isobe, H. Miyabe, Y. Nakano, T. Shiozawa, T. Sugimoto, A. T. Suzuki, Y. Takeuchi, S. Yamamoto, A. Ali, Y. Ashida, T. Hayashino, T. Hiraki, S. Hirota, K. Huang, K. Ieki, M. Jiang, T. Kikawa, M. Mori, A. Murakami, KE. Nakamura, T. Nakaya, N. D. Patel, K. Suzuki, S. Takahashi, K. Tateishi, R. A. Wendell, N. McCauley, P. Mehta, A. Pritchard, K. M. Tsui, Y. Fukuda, Y. Itow, H. Menjo, G. Mitsuka, M. Murase, F. Muto, T. Niwa, K. Sato, T. Suzuki, M. Taani, M. Tsukada, P. Mijakowski, K. Frankiewicz, J. Hignight, C. K. Jung, X. Li, J. L. Palomino, G. Santucci, C. Vilela, M. J. Wilking, C. Yanagisawa, D. Fukuda, K. Hagiwara, M. Harada, T. Horai, H. Ishino, S. Ito, T. Kayano, A. Kibayashi, Y. Koshio, W. Ma, T. Mori, H. Nagata, N. Piplani, M. Sakuda, S. Seiya, Y. Takahira, C. Xu, R. Yamaguchi, Y. Kuno, G. Barr, D. Barrow, L. Cook, C. Simpson, D. Wark, F. Nova, R. Tacik, J. Y. Yang, A. Cole, S. J. Jenkins, J. McElwee, M. Thiesse, L. Thompson, H. Okazawa, S. B. Kim, Y. Choi, K. Ito, K. Nishijima, K. Iwamoto, M. Koshiba, Y. Suda, M. Yokoyama, R. G. Calland, A. Goldsack, K. Martens, M. Murdoch, Y. Suzuki, M. R. Vagins, D. Hamabe, M. Kuze, Y. Okajima, M. Tanaka, T. Yoshida, M. Inomoto, M. Ishitsuka, R. Matsumoto, K. Ohta, M. Shinoki, J. F. Martin, C. M. Nantais, H. A. Tanaka, T. Towstego, M. Hartz, A. Konaka, P. de Perio, N. W. Prouse, S. Chen, B. D. Xu, Y. Zhang, B. Richards, K. Connolly, R. J. Wilkes, B. Jamieson, J. Walker, P. Giorgio, A. Minamino, K. Okamoto, G. Pintaudi

Physical Review D 102 ( 072002 ) 1 - 14 2020年10月

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/physrevd.102.072002

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その他リンク： http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevD.102.072002/fulltext
Updated Design of the CMB Polarization Experiment Satellite LiteBIRD 査読

H. Sugai, P. A. R. Ade, Y. Akiba, D. Alonso, K. Arnold, J. Aumont, J. Austermann, C. Baccigalupi, A. J. Banday, R. Banerji, R. B. Barreiro, S. Basak, J. Beall, S. Beckman, M. Bersanelli, J. Borrill, F. Boulanger, M. L. Brown, M. Bucher, A. Buzzelli, E. Calabrese, F. J. Casas, A. Challinor, V. Chan, Y. Chinone, J.-F. Cliche, F. Columbro, A. Cukierman, D. Curtis, P. Danto, P. de Bernardis, T. de Haan, M. De Petris, C. Dickinson, M. Dobbs, T. Dotani, L. Duband, A. Ducout, S. Duff, A. Duivenvoorden, J.-M. Duval, K. Ebisawa, T. Elleflot, H. Enokida, H. K. Eriksen, J. Errard, T. Essinger-Hileman, F. Finelli, R. Flauger, C. Franceschet, U. Fuskeland, K. Ganga, J.-R. Gao, R. Génova-Santos, T. Ghigna, A. Gomez, M. L. Gradziel, J. Grain, F. Grupp, A. Gruppuso, J. E. Gudmundsson, N. W. Halverson, P. Hargrave, T. Hasebe, M. Hasegawa, M. Hattori, M. Hazumi, S. Henrot-Versille, D. Herranz, C. Hill, G. Hilton, Y. Hirota, E. Hivon, R. Hlozek, D.-T. Hoang, J. Hubmayr, K. Ichiki, T. Iida, H. Imada, K. Ishimura, H. Ishino, G. C. Jaehnig, M. Jones, T. Kaga, S. Kashima, Y. Kataoka, N. Katayama, T. Kawasaki, R. Keskitalo, A. Kibayashi, T. Kikuchi, K. Kimura, T. Kisner, Y. Kobayashi, N. Kogiso, A. Kogut, K. Kohri, E. Komatsu, K. Komatsu, K. Konishi, N. Krachmalnicoff, C. L. Kuo, N. Kurinsky, A. Kushino, M. Kuwata-Gonokami, L. Lamagna, M. Lattanzi, A. T. Lee, E. Linder, B. Maffei, D. Maino, M. Maki, A. Mangilli, E. Martínez-González, S. Masi, R. Mathon, T. Matsumura, A. Mennella, M. Migliaccio, Y. Minami, K. Mistuda, D. Molinari, L. Montier, G. Morgante, B. Mot, Y. Murata, J. A. Murphy, M. Nagai, R. Nagata, S. Nakamura, T. Namikawa, P. Natoli, S. Nerval, T. Nishibori, H. Nishino, Y. Nomura, F. Noviello, C. O’Sullivan, H. Ochi, H. Ogawa, H. Ogawa, H. Ohsaki, I. Ohta, N. Okada, N. Okada, L. Pagano, A. Paiella, D. Paoletti, G. Patanchon, F. Piacentini, G. Pisano, G. Polenta, D. Poletti, T. Prouvé, G. Puglisi, D. Rambaud, C. Raum, S. Realini, M. Remazeilles, G. Roudil, J. A. Rubiño-Martín, M. Russell, H. Sakurai, Y. Sakurai, M. Sandri, G. Savini, D. Scott, Y. Sekimoto, B. D. Sherwin, K. Shinozaki, M. Shiraishi, P. Shirron, G. Signorelli, G. Smecher, P. Spizzi, S. L. Stever, R. Stompor, S. Sugiyama, A. Suzuki, J. Suzuki, E. Switzer, R. Takaku, H. Takakura, S. Takakura, Y. Takeda, A. Taylor, E. Taylor, Y. Terao, K. L. Thompson, B. Thorne, M. Tomasi, H. Tomida, N. Trappe, M. Tristram, M. Tsuji, M. Tsujimoto, C. Tucker, J. Ullom, S. Uozumi, S. Utsunomiya, J. Van Lanen, G. Vermeulen, P. Vielva, F. Villa, M. Vissers, N. Vittorio, F. Voisin, I. Walker, N. Watanabe, I. Wehus, J. Weller, B. Westbrook, B. Winter, E. Wollack, R. Yamamoto, N. Y. Yamasaki, M. Yanagisawa, T. Yoshida, J. Yumoto, M. Zannoni, A. Zonca

Journal of Low Temperature Physics 199 ( 3-4 ) 1107 - 1117 2020年5月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Springer Science and Business Media LLC

<title>Abstract</title>Recent developments of transition-edge sensors (TESs), based on extensive experience in ground-based experiments, have been making the sensor techniques mature enough for their application on future satellite cosmic microwave background (CMB) polarization experiments. LiteBIRD is in the most advanced phase among such future satellites, targeting its launch in Japanese Fiscal Year 2027 (2027FY) with JAXA’s H3 rocket. It will accommodate more than 4000 TESs in focal planes of reflective low-frequency and refractive medium-and-high-frequency telescopes in order to detect a signature imprinted on the CMB by the primordial gravitational waves predicted in cosmic inflation. The total wide frequency coverage between 34 and 448 GHz enables us to extract such weak spiral polarization patterns through the precise subtraction of our Galaxy’s foreground emission by using spectral differences among CMB and foreground signals. Telescopes are cooled down to 5 K for suppressing thermal noise and contain polarization modulators with transmissive half-wave plates at individual apertures for separating sky polarization signals from artificial polarization and for mitigating from instrumental 1/<italic>f</italic> noise. Passive cooling by using V-grooves supports active cooling with mechanical coolers as well as adiabatic demagnetization refrigerators. Sky observations from the second Sun–Earth Lagrangian point, L2, are planned for 3 years. An international collaboration between Japan, the USA, Canada, and Europe is sharing various roles. In May 2019, the Institute of Space and Astronautical Science, JAXA, selected LiteBIRD as the strategic large mission No. 2.

DOI： 10.1007/s10909-019-02329-w

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その他リンク： http://link.springer.com/article/10.1007/s10909-019-02329-w/fulltext.html
Evaluation of gadolinium’s action on water Cherenkov detector systems with EGADS 査読

Ll. Marti, M. Ikeda, Y. Kato, Y. Kishimoto, M. Nakahata, Y. Nakajima, Y. Nakano, S. Nakayama, Y. Okajima, A. Orii, G. Pronost, H. Sekiya, M. Shiozawa, H. Tanaka, K. Ueno, S. Yamada, T. Yano, T. Yokozawa, M. Murdoch, J. Schuemann, M.R. Vagins, K. Bays, G. Carminati, N.J. Griskevich, W.R. Kropp, S. Locke, A. Renshaw, M.B. Smy, P. Weatherly, S. Ito, H. Ishino, A. Kibayashi, Y. Koshio, T. Mori, M. Sakuda, R. Yamaguchi, P. Fernandez, L. Labarga, I. Bandac, J. Perez, J. Amey, R.P. Litchfield, A. Sztuc, Y. Uchida, W.Y. Ma, A. Goldsack, C. Simpson, D. Wark, L.H.V. Anthony, N. McCauley, A. Pritchard, F. Di Lodovico, B. Richards, A. Cole, M. Thiesse, L. Thompson, J. Imber, S.V. Cao, K. Ito, Y. Takeuchi, R. Akutsu, Y. Nishimura, K. Okumura, S. Hirota, F. Muto, M. Yokoyama, Y. Suda, H. Zhang

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 959 ( 163549 ) 1 - 10 2020年4月

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1016/j.nima.2020.163549

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Search for proton decay into three charged leptons in 0.37 megaton-years exposure of the Super-Kamiokande 査読

M. Tanaka, K. Abe, C. Bronner, Y. Hayato, M. Ikeda, S. Imaizumi, H. Ito, J. Kameda, Y. Kataoka, Y. Kato, Y. Kishimoto, Ll Marti, M. Miura, S. Moriyama, T. Mochizuki, M. Nakahata, Y. Nakajima, S. Nakayama, T. Okada, K. Okamoto, A. Orii, G. Pronost, H. Sekiya, M. Shiozawa, Y. Sonoda, A. Takeda, A. Takenaka, H. Tanaka, T. Yano, R. Akutsu, T. Kajita, K. Okumura, R. Wang, J. Xia, D. Bravo-Berguno, L. Labarga, P. Fernandez, F. D. M. Blaszczyk, E. Kearns, J. L. Raaf, J. L. Stone, L. Wan, T. Wester, J. Bian, N. J. Griskevich, W. R. Kropp, S. Locke, S. Mine, M. B. Smy, H. W. Sobel, Takhistov, V, P. Weatherly, J. Hill, J. Y. Kim, I. T. Lim, R. G. Park, B. Bodur, K. Scholberg, C. W. Walter, A. Coffani, O. Drapier, S. El Hedri, M. Gonin, Th A. Mueller, P. Paganini, T. Ishizuka, T. Nakamura, J. S. Jang, J. G. Learned, S. Matsuno, R. P. Litchfield, A. A. Sztuc, Y. Uchida, Berardi, V, M. G. Catanesi, E. Radicioni, N. F. Calabria, G. De Rosa, G. Collazuol, F. Iacob, L. Ludovici, Y. Nishimura, S. Cao, M. Friend, T. Hasegawa, T. Ishida, T. Kobayashi, T. Nakadaira, K. Nakamura, Y. Oyama, K. Sakashita, T. Sekiguchi, T. Tsukamoto, M. Hasegawa, Y. Isobe, H. Miyabe, Y. Nakano, T. Shiozawa, T. Sugimoto, A. T. Suzuki, Y. Takeuchi, A. Ali, Y. Ashida, S. Hirota, M. Jiang, T. Kikawa, M. Mori, Ke Nakamura, T. Nakaya, R. A. Wendell, L. H. Anthony, N. McCauley, P. Mehta, A. Pritchard, K. M. Tsui, Y. Fukuda, Y. Itow, T. Niwa, M. Taani, M. Tsukada, P. Mijakowski, K. Frankiewicz, C. K. Jung, C. Vilela, M. J. Wilking, C. Yanagisawa, D. Fukuda, M. Harada, K. Hagiwara, T. Horai, H. Ishino, S. Ito, Y. Koshio, M. Sakuda, Y. Takahira, C. Xu, Y. Kuno, D. Barrow, L. Cook, C. Simpson, D. Wark, F. Nova, T. Boschi, F. Di Lodovico, S. Molina Sedgwick, S. Zsoldos, S. B. Kim, J. Y. Yang, M. Thiesse, L. Thompson, H. Okazawa, Y. Choi, K. Nishijima, M. Koshiba, M. Yokoyama, A. Goldsack, K. Martens, B. Quilain, Y. Suzuki, M. R. Vagins, M. Kuze, T. Yoshida, M. Ishitsuka, R. Matsumoto, K. Ohta, J. F. Martin, C. M. Nantais, H. A. Tanaka, T. Towstego, M. Hartz, A. Konaka, P. de Perio, N. W. Prouse, S. Chen, B. D. Xu, B. Richards, B. Jamieson, J. Walker, A. Minamino, G. Pintaudi

PHYSICAL REVIEW D 101 ( 052011 ) 1 - 12 2020年3月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

A search for proton decay into three charged leptons has been performed by using 0.37 Mton . years of data collected in Super-Kamiokande. All possible combinations of electrons, muons, and their antiparticles consistent with charge conservation were considered as decay modes. No significant excess of events has been found over the background, and lower limits on the proton lifetime divided by the branching ratio have been obtained. The limits range between 9.2 x 10(33) and 3.4 x 10(34) years at 90% confidence level, improving by more than an order of magnitude upon limits from previous experiments. A first limit has been set for the p -> mu(-)e(+)e(+) mode.

DOI： 10.1103/PhysRevD.101.052011

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Simulation of the cosmic ray effects for the LiteBIRD satellite observing the CMB B-mode polarization

Mayu Tominaga, Masahiro Tsujimoto, Samantha Lynn Stever, Tommaso Ghigna, HIrokazu Ishino, Ken Ebisawa

Proceedings of SPIE - The International Society for Optical Engineering 11453 2020年

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記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）出版者・発行元：SPIE-INT SOC OPTICAL ENGINEERING

The LiteBIRD satellite is planned to be launched by JAXA in the late 2020s. Its main purpose is to observe the large-scale B-mode polarization in the Cosmic Microwave Background (CMB) anticipated from the Inflation theory. LiteBIRD will observe the sky for three years at the second Lagrangian point (L2) of the Sun-Earth system. Planck was the predecessor for observing the CMB at L2, and the onboard High Frequency Instrument (HFI) suffered contamination by glitches caused by the cosmic-ray (CR) hits. We consider the CR hits can also be a serious source of the systematic uncertainty for LiteBIRD. Thus, we have started a comprehensive end-To-end simulation study to assess impact of the CR hits for the LiteBIRD detectors. Here, we describe procedures to make maps and power spectra from the simulated time-ordered data, and present initial results. Our initial estimate is that ClBB by CR is ∼ 2 ×10-6 μK2CMB in a one-year observation with 12 detectors assuming that the noise is 1 aW/ √ Hz for the differential mode of two detectors constituting a polarization pair.

DOI： 10.1117/12.2576127

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Demonstration of five-layer phase-flat achromatic half-wave plate with anti-reflective structures and superconducting magnetic bearing for CMB polarization experiments

Kunimoto Komatsu, Hirokazu Ishino, Hirokazu Kataza, Kuniaki Konishi, Makoto Kuwata-Gonokami, Nobuhiko Katayama, Shinya Sugiyama, Tomotake Matsumura, Haruyuki Sakurai, Yuki Sakurai, Ryota Takaku, Junji Yumoto

Proceedings of SPIE - The International Society for Optical Engineering 11453 2020年

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掲載種別：研究論文（国際会議プロシーディングス）

We have developed a prototype half-wave plate (HWP) based polarization modulator (PMU) for Cosmic Microwave Background polarization measurement experiments. We built a 1/10 scaled PMU that consists of a 50 mm diameter five-layer achromatic HWP with a moth-eye broadband anti-reflection sub-wavelength structure mounted on a superconducting magnetic bearing. The entire system has cooled below 20 K in a cryostat chamber that has two millimeter-wave transparent windows. A coherent source and the diode detector are placed outside of the cryostat and the millimeter-wave goes through the PMU in the cryostat. We have measured the modulated signal by the PMU, analyzed the spectral signatures, and extracted the modulation efficiency over the frequency coverage of 34-161 GHz. We identified the peaks in the optical data, which are synchronous to the rotational frequency. We also identified the peaks that are originated from the resonance frequency of the levitating system. We also recovered the modulation efficiency as a function of the incident electromagnetic frequency and the data agrees to the predicted curves within uncertainties of the input parameters, i.e.The indices of refraction, thickness, and angle alignment. Finally, we discuss the implication of the results when this is applied to the LiteBIRD low-frequency telescope.

DOI： 10.1117/12.2560486

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Breadboard model of the polarization modulator unit based on a continuously rotating half-wave plate for the low-frequency telescope of the LiteBIRD space mission

Yuki Sakurai, Tomotake Matsumura, Nobuhiko Katayama, Kunimoto Komatsu, Ryota Takaku, Shinya Sugiyama, Yoshiki Nomura, Takayuki Toda, Tommaso Ghigna, Teruhito Iida, Hajime Sugai, Hiroaki Imada, Masashi Hazumi, Hirokazu Ishino, Hiroyuki Ohsaki, Yutaka Terao, Hisashi Enokida, Yusuke Ishida, Yosuke Iwata, Doa Ahmad, Kuniaki Konishi, Haruyuki Sakurai, Junji Yumoto, Makoto Kuwata-Gonokami, Akito Kusaka, Charles Hill

Proceedings of SPIE - The International Society for Optical Engineering 11453 2020年

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掲載種別：研究論文（国際会議プロシーディングス）

We present a breadboard model development status of the polarization modulator unit (PMU) for a low-frequency telescope (LFT) of the LiteBIRD space mission. LiteBIRD is a next-generation cosmic microwave background polarization satellite to measure the primordial B-mode with the science goal of σr < 0.001. The baseline design of LiteBIRD consists of reflective low-frequency and refractive medium-And-high-frequency telescopes. Each telescope employs the PMU based on a continuous rotating half-wave plate (HWP) at the aperture. The PMU is a critical instrument for the LiteBIRD to achieve the science goal because it significantly suppresses 1/f noise and mitigates systematic uncertainties. The LiteBIRD LFT PMU consists of a broadband achromatic HWP and a cryogenic rotation mechanism. In this presentation, we discuss requirements, design and systematic studies of the PMU, and we report the development status of the broadband HWP and the space-compatible cryogenic rotation mechanism.

DOI： 10.1117/12.2560289

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Demonstration of the broadband half-wave plate using the nine-layer sapphire for the cosmic microwave background polarization experiment 査読

Kunimoto Komatsu, Tomotake Matsumura, Hiroaki Imada, Hirokazu Ishino, Nobuhiko Katayama, Yuki Sakurai

JOURNAL OF ASTRONOMICAL TELESCOPES INSTRUMENTS AND SYSTEMS 5 ( 4 ) 1 - 14 2019年10月

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1117/1.JATIS.5.4.044008

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Demonstration of broadband anti-reflection coating on sapphire based on mm-wave sub-wavelength structures

R. Takaku, T. Matsumura, H. Sakurai, K. Konishi, H. Imada, S. Hanany, K. Young, Q. Wen, Y. Sakurai, N. Katayama, K. Mitsuda, N. Yamasaki, K. Komatsu, H. Ishino, J. Yumoto, M. Kuwata-Gonokami

International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2019-September ( 19079854 ) 1 - 2 2019年9月

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記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）

DOI： 10.1109/IRMMW-THz.2019.8873910

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Bandpass mismatch error for satellite CMB experiments II: correcting for the spurious signal 査読

Banerji Ranajoy, Patanchon Guillaume, Delabrouille Jacques, Hazumi Masashi, Due Thuong Hoang, Ishino Hirokazu, Matsumura Tomotake

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS 07 ( 043 ) 1 - 27 2019年7月

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1088/1475-7516/2019/07/043

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Atmospheric neutrino oscillation analysis with improved event reconstruction in Super-Kamiokande IV 査読

M Jiang, K Abe, C Bronner, Y Hayato, M Ikeda, K Iyogi, J Kameda, Y Kato, Y Kishimoto, L l Marti, M Miura, S Moriyama, T Mochizuki, M Nakahata, Y Nakajima, Y Nakano, S Nakayama, T Okada, K Okamoto, A Orii, G Pronost, H Sekiya, M Shiozawa, Y Sonoda, A Takeda, A Takenaka, H Tanaka, T Yano, R Akutsu, T Kajita, Y Nishimura, K Okumura, R Wang, J Xia, L Labarga, P Fernandez, F, d M Blaszczyk, C Kachulis, E Kearns, J L Raaf, J L Stone, S Sussman, S Berkman, J Bian, N J Griskevich, W R Kropp, S Locke, S Mine, P Weatherly, M B Smy, H W Sobel, V Takhistov, K S Ganezer, J Hill, J Y Kim, I T Lim, R G Park, B Bodur, K Scholberg, C W Walter, M Gonin, J Imber, Th A Mueller, T Ishizuka, T Nakamura, J S Jang, K Choi, J G Learned, S Matsuno, R P Litchfield, Y Uchida, M O Wascko, N F Calabria, M G Catanesi, R A Intonti, E Radicioni, G De Rosa, A Ali, G Collazuol, F Iacob, L Ludovici, S Cao, M Friend, T Hasegawa, T Ishida, T Kobayashi, T Nakadaira, K Nakamura, Y Oyama, K Sakashita, T Sekiguchi, T Tsukamoto, K E Abe, M Hasegawa, Y Isobe, H Miyabe, T Sugimoto, A T Suzuki, Y Takeuchi, Y Ashida, T Hayashino, S Hirota, T Kikawa, M Mori, K E Nakamura, T Nakaya, R A Wendell, L H V Anthony, N McCauley, A Pritchard, K M Tsui, Y Fukuda, Y Itow, M Murrase, P Mijakowski, K Frankiewicz, C K Jung, X Li, J L Palomino, G Santucci, C Vilela, M J Wilking, C Yanagisawa, D Fukuda, K Hagiwara, H Ishino, S Ito, Y Koshio, M Sakuda, Y Takahira, C Xu, Y Kuno, C Simpson, D Wark, F Di Lodovico, B Richards, S Molina Sedgwick, R Tacik, S B Kim, M Thiesse, L Thompson, H Okazawa, Y Choi, K Nishijima, M Koshiba, M Yokoyama, A Goldsack, K Martens, M Murdoch, B Quilain, Y Suzuki, M R Vagins, M Kuze, Y Okajima, T Yoshida, M Ishitsuka, J F Martin, C M Nantais, H A Tanaka, T Towstego, M Hartz, A Konaka, P de Perio, S Chen, L Wan, A Minamino

Progress of Theoretical and Experimental Physics 5 ( 053F01 ) 1 - 39 2019年5月

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1093/ptep/ptz015

Web of Science

Scopus

arXiv

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LiteBIRD: A Satellite for the Studies of B-Mode Polarization and Inflation from Cosmic Background Radiation Detection 査読

Hazumi M, Ade P. A. R, Akiba Y, Alonso D, Arnold K, Aumont J, Baccigalupi C, Barron D, Basak S, Beckman S, Borrill J, Boulanger F, Bucher M, Calabrese E, Chinone Y, Cho S, Cukierman A, Curtis D. W, de Haan T, Dobbs M, Dominjon A, Dotani T, Duband L, Ducout A, Dunkley J, Duval J. M, Elleflot T, Eriksen H. K, Errard J, Fischer J, Fujino T, Funaki T, Fuskeland U, Ganga K, Goeckner-Wald N, Grain J, Halverson N. W, Hamada T, Hasebe T, Hasegawa M, Hattori K, Hattori M, Hayes L, Hidehira N, Hill C. A, Hilton G, Hubmayr J, Ichiki K, Iida T, Imada H, Inoue M, Inoue Y, Irwin K. D, Ishino H, Jeong O, Kanai H, Kaneko D, Kashima S, Katayama N, Kawasaki T, Kernasovskiy S. A, Keskitalo R, Kibayashi A, Kida Y, Kimura K, Kisner T, Kohri K, Komatsu E, Komatsu K, Kuo C. L, Kurinsky N. A, Kusaka A, Lazarian A, Lee A. T, Li D, Linder E, Maffei B, Mangilli A, Maki M, Matsumura T, Matsuura S, Meilhan D, Mima S, Minami Y, Mitsuda K, Montier L, Nagai M, Nagasaki T, Nagata R, Nakajima M, Nakamura S, Namikawa T, Naruse M, Nishino H, Nitta T, Noguchi T, Ogawa H, Oguri S, Okada N, Okamoto A, Okamura T, Otani C, Patanchon G, Pisano G, Rebeiz G, Remazeilles M, Richards P. L, Sakai S, Sakurai Y, Sato Y, Sato N, Sawada M, Segawa Y, Sekimoto Y, Seljak U, Sherwin B. D, Shimizu T, Shinozaki K, Stompor R, Sugai H, Sugita H, Suzuki A, Suzuki J, Tajima O, Takada S, Takaku R, Takakura S, Takatori S, Tanabe D, Taylor E, Thompson K. L, Thorne B, Tomaru T, Tomida T, Tomita N, Tristram M, Tucker C, Turin P, Tsujimoto M, Uozumi S, Utsunomiya S, Uzawa Y, Vansyngel F, Wehus I. K, Westbrook B, Willer M, Whitehorn N, Yamada Y, Yamamoto R, Yamasaki N, Yamashita T, Yoshida M

JOURNAL OF LOW TEMPERATURE PHYSICS 194 ( 5-6 ) 443 - 452 2019年3月

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掲載種別：研究論文（学術雑誌）

DOI： 10.1007/s10909-019-02150-5

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その他リンク： http://link.springer.com/content/pdf/10.1007/s10909-019-02150-5.pdf
Measurement of the neutrino-oxygen neutral-current quasielastic cross section using atmospheric neutrinos at Super-Kamiokande 査読

L. Wan, K. Abe, C. Bronner, Y. Hayato, M. Ikeda, K. Iyogi, J. Kameda, Y. Kato, Y. Kishimoto, Ll. Marti, M. Miura, S. Moriyama, T. Mochizuki, M. Nakahata, Y. Nakajima, Y. Nakano, S. Nakayama, T. Okada, K. Okamoto, A. Orii, G. Pronost, H. Sekiya, M. Shiozawa, Y. Sonoda, A. Takeda, A. Takenaka, H. Tanaka, T. Yano, R. Akutsu, T. Kajita, Y. Nishimura, K. Okumura, R. Wang, J. Xia, L. Labarga, P. Fernandez, F. d. M. Blaszczyk, C. Kachulis, E. Kearns, J. L. Raaf, J. L. Stone, S. Sussman, S. Berkman, J. Bian, N. J. Griskevich, W. R. Krop, S. Locke, S. Mine, P. Weatherly, M. B. Smy, H. W. Sobel, V. Takhistov, K. S. Ganezer, J. Hill, J. Y. Kim, I. T. Lim, R. G. Park, B. Bodur, K. Scholberg, C. W. Walter, M. Gonin, J. Imber, Th. A. Mueller, T. Ishizuka, T. Nakamura, J. S. Jang, K. Choi, J. G. Learned, S. Matsuno, R. P. Litchfield, Y. Uchida, M. O. Wascko, N. F. Calabria, M. G. Catanesi, R. A. Intonti, E. Radicioni, G. De Rosa, A. Ali, G. Collazuol, F. Iacob, L. Ludovici, S. Cao, M. Friend, T. Hasegawa, T. Ishida, T. Kobayashi, T. Nakadaira, K. Nakamura, Y. Oyama, K. Sakashita, T. Sekiguchi, T. Tsukamoto, KE. Abe, M. Hasegawa, Y. Isobe, H. Miyabe, T. Sugimoto, A. T. Suzuki, Y. Takeuchi, Y. Ashida, T. Hayashino, S. Hirota, M. Jiang, T. Kikawa, M. Mori, KE. Nakamura, T. Nakaya, R. A. Wendell, L. H. V. Anthony, N. McCauley, A. Pritchard, K. M. Tsui, Y. Fukuda, Y. Itow, M. Murrase, P. Mijakowski, K. Frankiewicz, C. K. Jung, X. Li, J. L. Palomino, G. Santucci, C. Vilela, M. J. Wilking, C. Yanagisawa, D. Fukuda, K. Hagiwara, H. Ishino, S. Ito, Y. Koshio, M. Sakuda, Y. Takahira, C. Xu, Y. Kuno, C. Simpson, D. Wark, F. Di Lodovico, B. Richards, S. Molina Sedgwick, R. Tacik, S. B. Kim, M. Thiesse, L. Thompson, H. Okazawa, Y. Choi, K. Nishijima, M. Koshiba, M. Yokoyama, A. Goldsack, K. Martens, M. Murdoch, B. Quilain, Y. Suzuki, M. R. Vagins, M. Kuze, Y. Okajima, T. Yoshida, M. Ishitsuka, J. F. Martin, C. M. Nantais, H. A. Tanaka, T. Towstego, M. Hartz, A. Konaka, P. de Perio, S. Chen, A. Minamino

Physical Review D 99 ( 032005 ) 1 - 11 2019年2月

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/physrevd.99.032005

Web of Science

Scopus

arXiv

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その他リンク： http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevD.99.032005/fulltext
等間隔共振周波数を目指したニオブ製集中定数型力学インダクタンス検出器の設計と製作の改善査読

喜田洋介, 石野宏和, 山森弘毅, 平山文紀, 神代暁, 樹林敦子, 佐藤伸明

低温工学 54 ( 1 ) 33 - 36 2019年1月

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記述言語：日本語掲載種別：研究論文（学術雑誌）

DOI： 10.2221/jcsj.54.33

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Measurement of the tau neutrino cross section in atmospheric neutrino oscillations with Super-Kamiokande 査読

Li, Z, Abe, K, Bronner, C, Hayato, Y, Ikeda, M, Iyogi, K, Kameda, J, Kato, Y, Kishimoto, Y, Marti, Ll, Miura, M, Moriyama, S, Nakahata, M, Nakajima, Y, Nakano, Y, Nakayama, S, Orii, A, Pronost, G, Sekiya, H, Shiozawa, M, Sonoda, Y, Takeda, A, Takenaka, A, Tanaka, H, Tasaka, S, Tomura, T, Akutsu, R, Kajita, T, Nishimura, Y, Okumura, K, Tsui, K.M, Fernandez, P, Labarga, L, Blaszczyk, F.d. M, Gustafson, J, Kachulis, C, Kearns, E, Raaf, J.L, Stone, J.L, Sulak, L.R, Berkman, S, Tobayama, S, Elnimr, M, Kropp, W.R, Locke, S, Mine, S, Weatherly, P, Smy, M.B, Sobel, H.W, Takhistov, V, Ganezer, K.S, Hill, J, Kim, J.Y, Lim, I.T, Park, R.G, Himmel, A, O'Sullivan, E, Scholberg, K, Walter, C.W, Ishizuka, T, Nakamura, T, Jang, J.S, Choi, K, Learned, J.G, Matsuno, S, Smith, S.N, Amey, J, Litchfield, R.P, Y, W., Ma, Uchida, Y, Wascko, M.O, Cao, S, Friend, M, Hasegawa, T, Ishida, T, Ishii, T, Kobayashi, T, Nakadaira, T, Nakamura, K, Oyama, Y, Sakashita, K, Sekiguchi, T, Tsukamoto, T, Abe, KE, Hasegawa, M, Suzuki, A.T, Takeuchi, Y, Yano, T, Hayashino, T, Hiraki, T, Hirota, S, Huang, K, Jiang, M, Mori, M, Nakamura, KE, Nakaya, T, Patel, N.D, Wendell, R.A, Anthony, L.H. V, McCauley, N, Pritchard, A, Fukuda, Y, Itow, Y, Murase, M, Muto, F, Mijakowski, P, Frankiewicz, K, Jung, C.K, Li, X, Palomino, J.L, Santucci, G, Vilela, C, Wilking, M.J, Yanagisawa, C, Yang, G, Ito, S, Fukuda, D, Ishino, H, Kibayashi, A, Koshio, Y, Nagata, H, Sakuda, M, Xu, C, Kuno, Y, Wark, D, Di Lodovico, F, Richards, B, Sedgwick, S.M, Tacik, R, Kim, S, B, Cole, A, Thompson, L, Okazawa, H, Choi, Y, Ito, K, Nishijima, K, Koshiba, M, Suda, Y, Yokoyama, M, Calland, R.G, Hartz, M, Martens, K, Murdoch, M, Quilain, B, Simpson, C, Suzuki, Y, Vagins, M.R, Hamabe, D, Kuze, M, Okajima, Y, Yoshida, T, Ishitsuka, M, Martin, J.F, Nantais, C.M, Tanaka, H.A, Towstego, T, Konaka, A, Chen, S, Wan, L, Zhang, Y, Minamino, A, Wilkes, R.J

Physical Review D 98 ( 052006 ) 1 - 16 2018年9月

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevD.98.052006

Web of Science

arXiv

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Search for Boosted Dark Matter Interacting With Electrons in Super-Kamiokande 査読

Kachulis, C., Abe, K., Bronner, C., Hayato, Y., Ikeda, M., Iyogi, K., Kameda, J., Kato, Y., Kishimoto, Y., Marti, Ll., Miura, M., Moriyama, S., Nakahata, M., Nakano, Y., Nakayama, S., Okajima, Y., Orii, A., Pronost, G., Sekiya, H., Shiozawa, M., Sonoda, Y., Takeda, A., Takenaka, A., Tanaka, H., Tasaka, S., Tomura, T., Akutsu, R., Kajita, T., Kaneyuki, K., Nishimura, Y., Okumura, K., Tsui, K.M., Labarga, L., Fernandez, P., Blaszczyk, F.d. M., Gustafson, J., Kearns, E., Raaf, J.L., Stone, J.L., Sulak, L.R., Berkman, S., Tobayama, S., Goldhaber, M., Elnimr, M., Kropp, W.R., Mine, S., Locke, S., Weatherly, P., Smy, M.B., Sobel, H.W., Takhistov, V., Ganezer, K.S., Hill, J., Kim, J.Y., Lim, I.T., Park, R.G., Himmel, A., Li, Z., O'Sullivan, E., Scholberg, K., Walter, C.W., Ishizuka, T., Nakamura, T., Jang, J.S., Choi, K., Learned, J.G., Matsuno, S., Smith, S.N., Amey, J., Litchfield, R.P., Y., W., Ma., Uchida, Y., Wascko, M.O., Cao, S., Friend, M., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Abe, KE., Hasegawa, M., Suzuki, A.T., Takeuchi, Y., Yano, T., Hayashino, T., Hiraki, T., Hirota, S., Huang, K., Jiang, M., Nakamura, KE., Nakaya, T., Quilain, B., Patel, N.D., Wendell, R.A., Anthony, L.H. V., McCauley, N., Pritchard, A., Fukuda, Y., Itow, Y., Murase, M., Muto, F., Mijakowski, P., Frankiewicz, K., Jung, C.K., Li, X., Palomino, J.L., Santucci, G., Vilela, C., Wilking, M.J., Yanagisawa, C., Ito, S., Fukuda, D., Ishino, H., Kibayashi, A., Koshio, Y., Nagata, H., Sakuda, M., Xu, C., Kuno, Y., Wark, D., Di Lodovico, F., Richards, B., Tacik, R., Kim, S.B., Cole, A., Thompson, L., Okazawa, H., Choi, Y., Ito, K., Nishijima, K., Koshiba, M., Totsuka, Y., Suda, Y., Yokoyama, M., Calland, R.G., Hartz, M., Martens, K., Simpson, C., Suzuki, Y., Vagins, M.R., Hamabe, D., Kuze, M., Yoshida, T., Ishitsuka, M., Martin, J.F., Nantais, C.M., Tanaka, H.A., Konaka, A., Chen, S., Wan, L., Zhang, Y., Wilkes, R.J., Minamino, A.

Phys.Rev.Lett. 120 ( 22 ) 221301 - 221301 2018年5月

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevLett.120.221301

Web of Science

arXiv

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Concept Study of Optical Configurations for High-Frequency Telescope for LiteBIRD 査読

T. Hasebe, S. Kashima, P. A.R. Ade, Y. Akiba, D. Alonso, K. Arnold, J. Aumont, C. Baccigalupi, D. Barron, S. Basak, S. Beckman, J. Borrill, F. Boulanger, M. Bucher, E. Calabrese, Y. Chinone, H. M. Cho, A. Cukierman, D. W. Curtis, T. de Haan, M. Dobbs, A. Dominjon, T. Dotani, L. Duband, A. Ducout, J. Dunkley, J. M. Duval, T. Elleflot, H. K. Eriksen, J. Errard, J. Fischer, T. Fujino, T. Funaki, U. Fuskeland, K. Ganga, N. Goeckner-Wald, J. Grain, N. W. Halverson, T. Hamada, M. Hasegawa, K. Hattori, M. Hattori, L. Hayes, M. Hazumi, N. Hidehira, C. A. Hill, G. Hilton, J. Hubmayr, K. Ichiki, T. Iida, H. Imada, M. Inoue, Y. Inoue, K. D. Irwin, H. Ishino, O. Jeong, H. Kanai, D. Kaneko, N. Katayama, T. Kawasaki, S. A. Kernasovskiy, R. Keskitalo, A. Kibayashi, Y. Kida, K. Kimura, T. Kisner, K. Kohri, E. Komatsu, K. Komatsu, C. L. Kuo, N. A. Kurinsky, A. Kusaka, A. Lazarian, A. T. Lee, D. Li, E. Linder, B. Maffei, A. Mangilli, M. Maki, T. Matsumura, S. Matsuura, D. Meilhan, S. Mima, Y. Minami, K. Mitsuda, L. Montier, M. Nagai, T. Nagasaki, R. Nagata, M. Nakajima, S. Nakamura, T. Namikawa, M. Naruse, H. Nishino, T. Nitta, T. Noguchi, H. Ogawa, S. Oguri, N. Okada, A. Okamoto, T. Okamura, C. Otani, G. Patanchon, G. Pisano, G. Rebeiz, M. Remazeilles, P. L. Richards, S. Sakai, Y. Sakurai, Y. Sato, N. Sato, M. Sawada, Y. Segawa, Y. Sekimoto, U. Seljak, B. D. Sherwin, T. Shimizu, K. Shinozaki, R. Stompor, H. Sugai, H. Sugita, A. Suzuki, J. Suzuki, O. Tajima, S. Takada, R. Takaku, S. Takakura, S. Takatori, D. Tanabe, E. Taylor, K. L. Thompson, B. Thorne, T. Tomaru, T. Tomida, N. Tomita, M. Tristram, C. Tucker, P. Turin, M. Tsujimoto, S. Uozumi, S. Utsunomiya, Y. Uzawa, F. Vansyngel, I. K. Wehus, B. Westbrook, M. Willer, N. Whitehorn, Y. Yamada, R. Yamamoto, N. Yamasaki, T. Yamashita, M. Yoshida

Journal of Low Temperature Physics 193 ( 5-6 ) 1 - 10 2018年5月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Springer New York LLC

The high-frequency telescope for LiteBIRD is designed with refractive and reflective optics. In order to improve sensitivity, this paper suggests the new optical configurations of the HFT which have approximately 7 times larger focal planes than that of the original design. The sensitivities of both the designs are compared, and the requirement of anti-reflection (AR) coating on the lens for the refractive option is derived. We also present the simulation result of a sub-wavelength AR structure on both surfaces of silicon, which shows a band-averaged reflection of 1.1–3.2% at 101–448 GHz.

DOI： 10.1007/s10909-018-1915-2

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The LiteBIRD Satellite Mission: Sub-Kelvin Instrument 査読

A. Suzuki, P. A.R. Ade, Y. Akiba, D. Alonso, K. Arnold, J. Aumont, C. Baccigalupi, D. Barron, S. Basak, S. Beckman, J. Borrill, F. Boulanger, M. Bucher, E. Calabrese, Y. Chinone, S. Cho, B. Crill, A. Cukierman, D. W. Curtis, T. de Haan, M. Dobbs, A. Dominjon, T. Dotani, L. Duband, A. Ducout, J. Dunkley, J. M. Duval, T. Elleflot, H. K. Eriksen, J. Errard, J. Fischer, T. Fujino, T. Funaki, U. Fuskeland, K. Ganga, N. Goeckner-Wald, J. Grain, N. W. Halverson, T. Hamada, T. Hasebe, M. Hasegawa, K. Hattori, M. Hattori, L. Hayes, M. Hazumi, N. Hidehira, C. A. Hill, G. Hilton, J. Hubmayr, K. Ichiki, T. Iida, H. Imada, M. Inoue, Y. Inoue, K. D. Irwin, H. Ishino, O. Jeong, H. Kanai, D. Kaneko, S. Kashima, N. Katayama, T. Kawasaki, S. A. Kernasovskiy, R. Keskitalo, A. Kibayashi, Y. Kida, K. Kimura, T. Kisner, K. Kohri, E. Komatsu, K. Komatsu, C. L. Kuo, N. A. Kurinsky, A. Kusaka, A. Lazarian, A. T. Lee, D. Li, E. Linder, B. Maffei, A. Mangilli, M. Maki, T. Matsumura, S. Matsuura, D. Meilhan, S. Mima, Y. Minami, K. Mitsuda, L. Montier, M. Nagai, T. Nagasaki, R. Nagata, M. Nakajima, S. Nakamura, T. Namikawa, M. Naruse, H. Nishino, T. Nitta, T. Noguchi, H. Ogawa, S. Oguri, N. Okada, A. Okamoto, T. Okamura, C. Otani, G. Patanchon, G. Pisano, G. Rebeiz, M. Remazeilles, P. L. Richards, S. Sakai, Y. Sakurai, Y. Sato, N. Sato, M. Sawada, Y. Segawa, Y. Sekimoto, U. Seljak, B. D. Sherwin, T. Shimizu, K. Shinozaki, R. Stompor, H. Sugai, H. Sugita, J. Suzuki, O. Tajima, S. Takada, R. Takaku, S. Takakura, S. Takatori, D. Tanabe, E. Taylor, K. L. Thompson, B. Thorne, T. Tomaru, T. Tomida, N. Tomita, M. Tristram, C. Tucker, P. Turin, M. Tsujimoto, S. Uozumi, S. Utsunomiya, Y. Uzawa, F. Vansyngel, I. K. Wehus, B. Westbrook, M. Willer, N. Whitehorn, Y. Yamada, R. Yamamoto, N. Yamasaki, T. Yamashita, M. Yoshida

Journal of Low Temperature Physics 193 ( 5-6 ) 1 - 9 2018年5月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Springer New York LLC

Inflation is the leading theory of the first instant of the universe. Inflation, which postulates that the universe underwent a period of rapid expansion an instant after its birth, provides convincing explanation for cosmological observations. Recent advancements in detector technology have opened opportunities to explore primordial gravitational waves generated by the inflation through “B-mode” (divergent-free) polarization pattern embedded in the cosmic microwave background anisotropies. If detected, these signals would provide strong evidence for inflation, point to the correct model for inflation, and open a window to physics at ultra-high energies. LiteBIRD is a satellite mission with a goal of detecting degree-and-larger-angular-scale B-mode polarization. LiteBIRD will observe at the second Lagrange point with a 400 mm diameter telescope and 2622 detectors. It will survey the entire sky with 15 frequency bands from 40 to 400 GHz to measure and subtract foregrounds. The US LiteBIRD team is proposing to deliver sub-Kelvin instruments that include detectors and readout electronics. A lenslet-coupled sinuous antenna array will cover low-frequency bands (40–235 GHz) with four frequency arrangements of trichroic pixels. An orthomode-transducer-coupled corrugated horn array will cover high-frequency bands (280–402 GHz) with three types of single frequency detectors. The detectors will be made with transition edge sensor (TES) bolometers cooled to a 100 milli-Kelvin base temperature by an adiabatic demagnetization refrigerator. The TES bolometers will be read out using digital frequency multiplexing with Superconducting QUantum Interference Device (SQUID) amplifiers. Up to 78 bolometers will be multiplexed with a single SQUID amplifier. We report on the sub-Kelvin instrument design and ongoing developments for the LiteBIRD mission.

DOI： 10.1007/s10909-018-1947-7

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Frequency-Domain Multiplexing Readout with a Self-Trigger System for Pulse Signals from Kinetic Inductance Detectors 査読

Y. Yamada, H. Ishino, A. Kibayashi, Y. Kida, N. Hidehira, K. Komatsu, M. Hazumi, N. Sato, K. Sakai, H. Yamamori, F. Hirayama, S. Kohjiro

Journal of Low Temperature Physics 193 ( 3-4 ) 1 - 7 2018年4月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Springer New York LLC

We present the development of a frequency-domain multiplexing readout of kinetic inductance detectors (KIDs) for pulse signals with a self-trigger system. The KIDs consist of an array of superconducting resonators that have different resonant frequencies individually, allowing us to read out multiple channels in the frequency domain with a single wire using a microwave-frequency comb. The energy deposited to the resonators break Cooper pairs, changing the kinetic inductance and, hence, the amplitude and the phase of the probing microwaves. For some applications such as X-ray detections, the deposited energy is detected as a pulse signal shaped by the time constants of the quasiparticle lifetime, the resonator quality factor, and the ballistic phonon lifetime in the substrate, ranging from microseconds to milliseconds. A readout system commonly used converts the frequency-domain data to the time-domain data. For the short pulse signals, the data rate may exceed the data transfer bandwidth, as the short time constant pulses require us to have a high sampling rate. In order to overcome this circumstance, we have developed a KID readout system that contains a self-trigger system to extract relevant signal data and reduces the total data rate with a commercial off-the-shelf FPGA board. We have demonstrated that the system can read out pulse signals of 15 resonators simultaneously with about 10 Hz event rate by irradiating (Formula presented.) particles from (Formula presented.)Am to the silicon substrate on whose surface aluminum KID resonators are formed.

DOI： 10.1007/s10909-018-1911-6

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Search for Neutrinos in Super-Kamiokande Associated with the GW170817 Neutron-star Merger 査読

Hayato, Y., Ikeda, M., Iyogi, K., Kameda, J., Kato, Y., Kishimoto, Y., Marti, Ll., Miura, M., Moriyama, S., Nakahata, M., Nakajima, Y., Nakano, Y., Nakayama, S., Orii, A., Pronost, G., Sekiya, H., Shiozawa, M., Sonoda, Y., Takeda, A., Takenaka, A., Tanaka, H., Tasaka, S., Yano, T., Akutsu, R., Kajita, T., Nishimura, Y., Okumura, K., Tsui, K.M., Labarga, L., Fernandez, P., Blaszczyk, F.d.M., Kachulis, C., Kearns, E., Raaf, J.L., Stone, J.L., Sulak, L.R., Berkman, S., Tobayama, S., Bian, J., Elnimr, M., Kropp, W.R., Locke, S., Mine, S., Weatherly, P., Smy, M.B., Sobel, H.W., Takhistov, V., Ganezer, K.S., Hill, J., Kim, J.Y., Lim, I.T., Park, R.G., Li, Z., O'Sullivan, E., Scholberg, K., Walter, C.W., Gonin, M., Imber, J., Mueller, Th.A., Ishizuka, T., Nakamura, T., Jang, J.S., Choi, K., Learned, J.G., Matsuno, S., Amey, J., Litchfield, R.P., Ma, W.Y., Uchida, Y., Wascko, M.O., Catanesi, M.G., Intonti, R.A., Radicioni, E., De Rosa, G., Ali, A., Collazuol, G., Ludovici, L., Cao, S., Friend, M., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Abe, KE., Hasegawa, M., Suzuki, A.T., Takeuchi, Y., Hayashino, T., Hirota, S., Jiang, M., Mori, M., Nakamura, KE., Nakaya, T., Wendell, R.A., Anthony, L.H.V., McCauley, N., Pritchard, A., Fukuda, Y., Itow, Y., Murase, M., Muto, F., Mijakowski, P., Frankiewicz, K., Jung, C.K., Li, X., Palomino, J.L., Santucci, G., Viela, C., Wilking, M.J., Yanagisawa, C., Fukuda, D., Ishino, H., Ito, S., Kibayashi, A., Koshio, Y., Nagata, H., Sakuda, M., Xu, C., Kuno, Y., Wark, D., Di Lodovico, F., Richards, B., Molina Sedgwick, S., Tacik, R., Kim, S.B., Cole, A., Thompson, L., Okazawa, H., Choi, Y., Ito, K., Nishijima, K., Koshiba, M., Suda, Y., Yokoyama, M., Calland, R.G., Hartz, M., Martens, K., Murdoch, M., Quilain, B., Simpson, C., Suzuki, Y., Vagins, M.R., Hamabe, D., Kuze, M., Okajima, Y., Yoshida, T., Ishitsuka, M., Martin, J.F., Nantais, C.M., Tanaka, H.A., Towstego, T., Konaka, A., Chen, S., Wan, L., Minamino, A.

Astrophys.J. 857 ( 1 ) 1 - 6 2018年4月

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.3847/2041-8213/aabaca

Web of Science

arXiv

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Atmospheric neutrino oscillation analysis with external constraints in Super-Kamiokande I-IV 査読

Abe, K., Bronner, C., Haga, Y., Hayato, Y., Ikeda, M., Iyogi, K., Kameda, J., Kato, Y., Kishimoto, Y., Marti, Ll., Miura, M., Moriyama, S., Nakahata, M., Nakajima, T., Nakano, Y., Nakayama, S., Okajima, Y., Orii, A., Pronost, G., Sekiya, H., Shiozawa, M., Sonoda, Y., Takeda, A., Takenaka, A., Tanaka, H., Tasaka, S., Tomura, T., Akutsu, R., Irvine, T., Kajita, T., Kametani, I., Kaneyuki, K., Nishimura, Y., Okumura, K., Richard, E., Tsui, K.M., Labarga, L., Fernandez, P., Blaszczyk, F.d. M., Gustafson, J., Kachulis, C., Kearns, E., Raaf, J.L., Stone, J.L., Sulak, L.R., Berkman, S., Tobayama, S., Goldhaber, M., Carminati, G., Elnimr, M., Kropp, W.R., Mine, S., Locke, S., Renshaw, A., Smy, M.B., Sobel, H.W., Takhistov, V., Weatherly, P., Ganezer, K.S., Hartfiel, B.L., Hill, J., Hong, N., Kim, J.Y., Lim, I.T., Park, R.G., Akiri, T., Himmel, A., Li, Z., O'Sullivan, E., Scholberg, K., Walter, C.W., Wongjirad, T., Ishizuka, T., Nakamura, T., Jang, J.S., Choi, K., Learned, J.G., Matsuno, S., Smith, S.N., Amey, J., Litchfield, R.P., Y., W., Ma., Uchida, Y., Wascko, M.O., Cao, S., Friend, M., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Abe, KE., Hasegawa, M., Suzuki, A.T., Takeuchi, Y., Yano, T., Hayashino, T., Hirota, S., Huang, K., Ieki, K., Jiang, M., Kikawa, T., Nakamura, KE., Nakaya, T., Patel, N.D., Suzuki, K., Takahashi, S., Wendell, R.A., Anthony, L.H. V., McCauley, N., Pritchard, A., Fukuda, Y., Itow, Y., Mitsuka, G., Murase, M., Muto, F., Suzuki, T., Mijakowski, P., Frankiewicz, K., Hignight, J., Imber, J., Jung, C.K., Li, X., Palomino, J.L., Santucci, G., Vilela, C., Wilking, M.J., Yanagisawa, C., Ito, S., Fukuda, D., Ishino, H., Kayano, T., Kibayashi, A., Koshio, Y., Mori, T., Nagata, H., Sakuda, M., Xu, C., Kuno, Y., Wark, D., Di Lodovico, F., Richards, B., Tacik, R., Kim, S.B., Cole, A., Thompson, L., Okazawa, H., Choi, Y., Ito, K., Nishijima, K., Koshiba, M., Totsuka, Y., Suda, Y., Yokoyama, M., Calland, R.G., Hartz, M., Martens, K., Quilain, B., Simpson, C., Suzuki, Y., Vagins, M.R., Hamabe, D., Kuze, M., Yoshida, T., Ishitsuka, M., Martin, J.F., Nantais, C.M., de Perio, P., Tanaka, H.A., Konaka, A., Chen, S., Wan, L., Zhang, Y., Wilkes, R.J., Minamino, A.

Phys.Rev.D 97 ( 7 ) 072001 - 072001 2018年4月

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevD.97.072001

Web of Science

arXiv

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Prototype design and evaluation of the nine-layer achromatic half-wave plate for the LiteBIRD low frequency telescope

Kunimoto Komatsu, Tomotake Matsumura, Masashi Hazumi, Hiroaki Imada, Hirokazu Ishino, Nobuhiko Katayama, Yuki Sakurai, Hajime Sugai, Ryota Takaku

MILLIMETER, SUBMILLIMETER, AND FAR-INFRARED DETECTORS AND INSTRUMENTATION FOR ASTRONOMY IX 10708 ( 1070847 ) 1 - 17 2018年

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記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）出版者・発行元：SPIE-INT SOC OPTICAL ENGINEERING

LiteBIRD is a satellite project to measure the polarization of the CMB with an unprecedented accuracy. LiteBIRD observes all sky for three years at the sun-earth second Lagrange point. The goal of LiteBIRD is to observe the B-mode polarization at large angular scales and to measure the tensor-to-scaler ratio r with an accuracy less than 0.001, exploring the energy scale of the inflation. In order to mitigate the system 1/f noise and systematics, we plan to use continuous rotating half-wave plates (HWPs) as a polarization modulator at each aperture of two telescopes. One of the telescopes, called a low frequency telescope (LFT), covers the frequency range from 34 to 270 GHz, requiring the HWP to have a high modulation efficiency in the wide bandwidth. We employ a Pancharatnam-type achromatic HWP (AHWP) to achieve the broadband coverage. The AHWP consists of nine layer stacked HWPs with the optic axes mutually rotated by the angles optimized for the LFT bandwidth. In this paper, we report our development status of the nine layer AHWP and measurement results on the modulation efficiency and the phase as a function of frequency.

DOI： 10.1117/12.2312431

Web of Science

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The optical design and physical optics analysis of a cross-Dragonian telescope for LiteBIRD

Hiroaki Imada, Tadayasu Dotani, Takashi Hasebe, Masashi Hazumi, Junji Inatani, Hirokazu Ishino, Shingo Kashima, Nobuhiko Katayama, Kimihiro Kimura, Tomotake Matsumura, Ryo Nagata, Yutaro Sekimoto, Hajime Sugai, Aritoki Suzuki, Shin Utsunomiya

SPACE TELESCOPES AND INSTRUMENTATION 2018: OPTICAL, INFRARED, AND MILLIMETER WAVE 10698 2018年

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記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）出版者・発行元：SPIE-INT SOC OPTICAL ENGINEERING

The Lite satellite for the studies of B-mode polarization and Inflation from the cosmic microwave background (CMB) Radiation Detection (LiteBIRD) is a next generation CMB satellite dedicated to probing the inflationary universe. It has two telescopes, Low Frequency Telescope (LFT) and High Frequency Telescope (HFT) to cover wide observational bands from 34 GHz to 448 GHz. In this presentation, we report the optical design and characterization of the LFT. We have used the CODE-V to obtain the LFT optical design based on a cross-Dragonian telescope. It is an image-space telecentric system with an F number of 3.5 and 20 x 10 degrees(2) field of view. The main, near and far side lobes at far-field have been calculated by using a combination of HFSS and GRASP 10. It is revealed that the LFT telescope has good main lobe properties to satisfy the requirements. On the other hand, the side lobes are affected by the stray light that stems from the triple reflection and the direct path from feed. In order to avoid the stray light, the way to block these paths is now under study.

DOI： 10.1117/12.2312185

Web of Science

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Prototype demonstration of the broadband anti-reflection coating on sapphire using a sub-wavelength structure

T. Matsumura, R. Takaku, S. Hanany, H. Imada, H. Ishino, N. Katayama, Y. Kobayashi, K. Komatsu, K. Konishi, M. Kuwata-Gonokami, S. Nakamura, H. Sakurai, Y. Sakurai, Q. Wen, K. Young, J. Yumoto

2018 29th IEEE International Symposium on Space Terahertz Technology, ISSTT 2018 54 - 60 2018年

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掲載種別：研究論文（国際会議プロシーディングス）

© 2018 29th IEEE International Symposium on Space Terahertz Technology, ISSTT 2018.All Rights Reserved. We report the development of the broadband antireflection (AR) coating on sapphire using a sub-wavelength structure for a cosmic microwave background (CMB) polarization experiment. One of the challenges in the CMB polarization experiment is to disentangle the sources of the polarized emission among the CMB and the galactic emissions from our Galaxy. This leads a need of a cryogenically compatible broadband AR coating on a millimeter wave optical element used in a CMB telescope. We design and fabricate the AR subwavelength structure using a laser machining on a sapphire plate, which is a commonly used material as a half-wave plate at millimeter wavelength. We fabricate a prototype sample and evaluate the transmittance of an SWS AR sapphire for the fractional bandwidth of about 1.5. We show the agreement between the measured transmittance and the prediction based on the fabricated shape. The projected transmittance based on the measurement achieves above 90% above 50 GHz. We finally discuss the room of the improvement and the applicability for this technology for a future CMB polarization experiment.

Scopus

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Current design of the electrical architecture for the payload module of LiteBIRD

M. Tsujimoto, H. Nishino, M. Hazumi, Y. Sekimoto, T. Dotani, H. Ishino, A. Kibayashi, Y. Sakurai, T. Matsumura, M. Dobbs, J. F. Cliche, G. Smecher, A. Suzuki, A. T. Lee, K. Arnold, L. Montier, B. Mot, G. Signorelli, P. De Bernardis

Proceedings of SPIE - The International Society for Optical Engineering 10698 2018年

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掲載種別：研究論文（国際会議プロシーディングス）

© COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only. LiteBIRD is a space-borne project for mapping the anisotropy of the linear polarization of the cosmic microwave background (CMB). The project aims to measure the B-mode pattern in a large angular scale to test the cosmic inflation theory. It is currently in the design phase lead by an international team of Japan, US, Canada, and Europe. We report the current status of the design of the electrical architecture of the payload module of the satellite, which is based on the heritages of other cryogenic space science missions using bolometers or microcalorimeters.

DOI： 10.1117/12.2311579

Scopus

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Bandpass mismatch error for satellite CMB experiments I: estimating the spurious signal 査読

Duc Thuong Hoang, Guillaume Patanchon, Martin Bucher, Tomotake Matsumura, Ranajoy Banerji, Hirokazu Ishino, Masashi Hazumi, Jacques Delabrouille

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS 11 ( 11 ) 1 - 26 2017年12月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：IOP PUBLISHING LTD

Future Cosmic Microwave Background (CMB) satellite missions aim to use the B mode polarization to measure the tensor-to-scalar ratio r with a sensitivity sigma(r) less than or similar to 10(-3). Achieving this goal will not only require sufficient detector array sensitivity but also unprecedented control of all systematic errors inherent to CMB polarization measurements. Since polarization measurements derive from differences between observations at different times and from different sensors, detector response mismatches introduce leakages from intensity to polarization and thus lead to a spurious B mode signal. Because the expected primordial B mode polarization signal is dwarfed by the known unpolarized intensity signal, such leakages could contribute substantially to the final error budget for measuring r. Using simulations we estimate the magnitude and angular spectrum of the spurious B mode signal resulting from bandpass mismatch between different detectors. It is assumed here that the detectors are calibrated, for example using the CMB dipole, so that their sensitivity to the primordial CMB signal has been perfectly matched. Consequently the mismatch in the frequency bandpass shape between detectors introduces difference in the relative calibration of galactic emission components. We simulate using a range of scanning patterns being considered for future satellite missions. We find that the spurious contribution to r from reionization bump on large angular scales (l < 10) is approximate to 107 assuming large detector arrays and 20 percent of the sky masked. We show how the amplitude of the leakage depends on the angular coverage per pixels that results from the scan pattern.

DOI： 10.1088/1475-7516/2017/12/015

Web of Science

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Search for an Excess of Events in the Super-Kamiokande Detector in the Directions of the Astrophysical Neutrinos Reported by the IceCube Collaboration 査読

K. Abe e, l, Super-Kamiokande Collaboration

ASTROPHYSICAL JOURNAL 850 ( 2 ) 1 - 7 2017年12月

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.3847/1538-4357/aa951b

Web of Science

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その他リンク： http://stacks.iop.org/0004-637X/850/i=2/a=166?key=crossref.c64db4937abe8276009dfe862bde6fe0
Search for nucleon decay into charged antilepton plus meson in 0.316 megaton$\cdot$years exposure of the Super-Kamiokande water Cherenkov detector 査読

Abe, K., Hayato, Y., Ikeda, M., Iyogi, K., Kameda, J., Kishimoto, Y., Marti, Ll., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Okajima, Y., Orii, A., Sekiya, H., Shiozawa, M., Sonoda, Y., Takeda, A., Tanaka, H., Tasaka, S., Tomura, T., Akutsu, R., Kajita, T., Kaneyuki, K., Nishimura, Y., Okumura, K., Tsui, K.M., Labarga, L., Fernandez, P., Blaszczyk, F.d.M., Gustafson, J., Kachulis, C., Kearns, E., Raaf, J.L., Stone, J.L., Sulak, L.R., Berkman, S., Tobayama, S., Goldhaber, M., Elnimr, M., Kropp, W.R., Mine, S., Locke, S., Weatherly, P., Smy, M.B., Sobel, H.W., Takhistov, V., Ganezer, K.S., Hill, J., Kim, J.Y., Lim, I.T., Park, R.G., Himmel, A., Li, Z., O'Sullivan, E., Scholberg, K., Walter, C.W., Ishizuka, T., Nakamura, T., Jang, J.S., Choi, K., Learned, J.G., Matsuno, S., Smith, S.N., Friend, M., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Nakano, Y., Suzuki, A.T., Takeuchi, Y., Yano, T., Cao, S.V., Hayashino, T., Hiraki, T., Hirota, S., Huang, K., Jiang, M., Minamino, A., Nakaya, T., Quilain, B., Patel, N.D., Wendell, R.A., Fukuda, Y., Itow, Y., Muto, F., Mijakowski, P., Frankiewicz, K., Jung, C.K., Li, X., Palomino, J.L., Santucci, G., Vilela, C., Wilking, M.J., Yanagisawa, C., Fukuda, D., Ishino, H., Kibayashi, A., Koshio, Y., Nagata, H., Sakuda, M., Xu, C., Kuno, Y., Tacik, R., Kim, S.B., Okazawa, H., Choi, Y., Ito, K., Nishijima, K., Koshiba, M., Totsuka, Y., Suda, Y., Yokoyama, M., Bronner, C., Calland, R.G., Hartz, M., Martens, K., Suzuki, Y., Vagins, M.R., Martin, J.F., Nantais, C.M., Tanaka, H.A., Konaka, A., Chen, S., Wan, L., Zhang, Y., Wilkes, R.J.

Phys.Rev.D 96 ( 1 ) 012003 - 012003 2017年7月

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掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevD.96.012003

arXiv

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Development of an Optical Coupling with Ground-Side Absorption for Antenna-Coupled Kinetic Inductance Detectors 査読

Hiroki Watanabe, Satoru Mima, Shugo Oguri, Mitsuhiro Yoshida, Masashi Hazumi, Hirokazu Ishino, Hikaru Ishitsuka, Atsuko Kibayashi, Chiko Otani, Nobuaki Sato, Osamu Tajima, Nozomu Tomita

IEICE TRANSACTIONS ON ELECTRONICS E100C ( 3 ) 298 - 304 2017年3月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG

Antenna-coupled kinetic inductance detectors (KIDs) have recently shown great promise as microwave detection systems with a large number of channels. However, this technique, still has difficulties in eliminating the radiation loss of the resonator signals. To solve this problem, we propose a design in which the absorption area connected to an antenna is located on the ground-side of a coplanar waveguide. Thereby, radiation loss due to leakage from the resonator to the antenna can be considerably reduced. This simple design also enables the use of a contact aligner for fabrication. We have developed KIDs with this design, named as the ground-side absorption (GSA)-KIDs and demonstrated that they have higher quality factors than those of the existing KIDs, while maintaining a good total sensitivity.

DOI： 10.1587/transele.E100.C.298

Web of Science

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Development of an Optical Coupling with Ground-Side Absorption for Antenna-Coupled Kinetic Inductance Detectors 査読

WATANABE Hiroki, SATO Nobuaki, TAJIMA Osamu, TOMITA Nozomu, MIMA Satoru, OGURI Shugo, YOSHIDA Mitsuhiro, HAZUMI Masashi, ISHINO Hirokazu, ISHITSUKA Hikaru, KIBAYASHI Atsuko, OTANI Chiko

IEICE Transactions on Electronics 100 ( 3 ) 298 - 304 2017年

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記述言語：英語出版者・発行元：一般社団法人電子情報通信学会

<p>Antenna-coupled kinetic inductance detectors (KIDs) have recently shown great promise as microwave detection systems with a large number of channels. However, this technique, still has difficulties in eliminating the radiation loss of the resonator signals. To solve this problem, we propose a design in which the absorption area connected to an antenna is located on the ground-side of a coplanar waveguide. Thereby, radiation loss due to leakage from the resonator to the antenna can be considerably reduced. This simple design also enables the use of a contact aligner for fabrication. We have developed KIDs with this design, named as the ground-side absorption (GSA)-KIDs and demonstrated that they have higher quality factors than those of the existing KIDs, while maintaining a good total sensitivity.</p>

DOI： 10.1587/transele.E100.C.298

CiNii Article

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SEARCH for NEUTRINOS in SUPER-KAMIOKANDE ASSOCIATED with GRAVITATIONAL-WAVE EVENTS GW150914 and GW151226 査読

K. Abe, K. Haga, Y. Hayato, M. Ikeda, K. Iyogi, J. Kameda, Y. Kishimoto, M. Miura, S. Moriyama, M, Nakahata,T, Nakajima, Y. Nakano, S. Nakayama, A. Orii, H. Sekiya, M. Shiozawa, A. Takeda, H. Tanaka, S. Tasaka, T. Tomura, R. Akutsu, T. Kajita, K. Kaneyuki, Y. Nishimura,E. Rich

Astrophysical Journal Letters 830 ( 1 ) 1 - 6 2016年10月

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掲載種別：研究論文（学術雑誌）

DOI： 10.3847/2041-8205/830/1/L11

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その他リンク： https://iopscience.iop.org/article/10.3847/2041-8205/830/1/L11/pdf
Solar Neutrino Measurements in Super-Kamiokande-IV 査読

Abe, K., Haga, Y., Hayato, Y., Ikeda, M., Iyogi, K., Kameda, J., Kishimoto, Y., Marti, Ll., Miura, M., Moriyama, S., Nakahata, M., Nakajima, T., Nakayama, S., Orii, A., Sekiya, H., Shiozawa, M., Sonoda, Y., Takeda, A., Tanaka, H., Takenaga, Y., Tasaka, S., Tomura, T., Ueno, K., Yokozawa, T., Akutsu, R., Irvine, T., Kaji, H., Kajita, T., Kametani, I., Kaneyuki, K., Lee, K.P., Nishimura, Y., McLachlan, T., Okumura, K., Richard, E., Labarga, L., Fernandez, P., Blaszczyk, F.d.M., Gustafson, J., Kachulis, C., Kearns, E., Raaf, J.L., Stone, J.L., Sulak, L.R., Berkman, S., Tobayama, S., Goldhaber, M., Bays, K., Carminati, G., Griskevich, N.J., Kropp, W.R., Mine, S., Renshaw, A., Smy, M.B., Sobel, H.W., Takhistov, V., Weatherly, P., Ganezer, K.S., Hartfiel, B.L., Hill, J., Keig, W.E., Hong, N., Kim, J.Y., Lim, I.T., Park, R.G., Akiri, T., Albert, J.B., Himmel, A., Li, Z., O'Sullivan, E., Scholberg, K., Walter, C.W., Wongjirad, T., Ishizuka, T., Nakamura, T., Jang, J.S., Choi, K., Learned, J.G., Matsuno, S., Smith, S.N., Friend, M., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nishikawa, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Nakano, Y., Suzuki, A.T., Takeuchi, Y., Yano, T., Cao, S.V., Hayashino, T., Hiraki, T., Hirota, S., Huang, K., Ieki, K., Jiang, M., Kikawa, T., Minamino, A., Murakami, A., Nakaya, T., Patel, N.D., Suzuki, K., Takahashi, S., Wendell, R.A., Fukuda, Y., Itow, Y., Mitsuka, G., Muto, F., Suzuki, T., Mijakowski, P., Frankiewicz, K., Hignight, J., Imber, J., Jung, C.K., Li, X., Palomino, J.L., Santucci, G., Taylor, I., Vilela, C., Wilking, M.J., Yanagisawa, C., Fukuda, D., Ishino, H., Kayano, T., Kibayashi, A., Koshio, Y., Mori, T., Sakuda, M., Takeuchi, J., Yamaguchi, R., Kuno, Y., Tacik, R., Kim, S.B., Okazawa, H., Choi, Y., Ito, K., Nishijima, K., Koshiba, M., Totsuka, Y., Suda, Y., Yokoyama, M., Bronner, C., Calland, R.G., Hartz, M., Martens, K., Obayashi, Y., Suzuki, Y., Vagins, M.R., Nantais, C.M., Martin, J.F., de Perio, P., Tanaka, H.A., Konaka, A., Chen, S., Sui, H., Wan, L., Yang, Z., Zhang, H., Zhang, Y., Connolly, K., Dziomba, M., Wilkes, R.J.

Phys.Rev.D 94 ( 5 ) 052010 - 052010 2016年9月

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevD.94.052010

arXiv

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Measurements of the atmospheric neutrino flux by Super-Kamiokande: energy spectra, geomagnetic effects, and solar modulation 査読

Richard, E., Okumura, K., Abe, K., Haga, Y., Hayato, Y., Ikeda, M., Iyogi, K., Kameda, J., Kishimoto, Y., Miura, M., Moriyama, S., Nakahata, M., Nakajima, T., Nakano, Y., Nakayama, S., Orii, A., Sekiya, H., Shiozawa, M., Takeda, A., H. A. Tanaka, Tomura, T., Wendell, R.A., Akutsu, R., Irvine, T., Kajita, T., Kaneyuki, K., Nishimura, Y., Luis Labarga, Fernandez, P., Gustafson, J., Kachulis, C., Kearns, E., Raaf, J.L., Stone, J.L., Sulak, L.R., Berkman, S., Nantais, C.M., H. A. Tanaka, Tobayama, S., Goldhaber, M., Kropp, W.R., Mine, S., Weatherly, P., Smy, M.B., Sobel, H.W., Takhistov, V., Ganezer, K.S., Hartfiel, B.L., Hill, J., Hong, N., Kim, J.Y., Lim, I.T., Park, R.G., Alexander Himmel, Li, Z., O'Sullivan, E., Scholberg, K., Walter, C.W., Wongjirad, T., Ishizuka, T., Tasaka, S., Jang, J.S., Learned, J.G., Matsuno, S., Smith, S.N., Friend, M., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A.T., Takeuchi, Y., Yano, T., Cao, S.V., Hiraki, T., Hirota, S., Huang, K., Kikawa, T., Minamino, A., Nakaya, T., Suzuki, K., Fukuda, Y., Choi, K., Itow, Y., Suzuki, T., Mijakowski, P., Frankiewicz, K., Hignight, J., Imber, J., Jung, C.K., Li, X., Palomino, J.L., Wilking, M.J., Yanagisawa, C., Fukuda, D., Ishino, H., Kayano, T., Kibayashi, A., Koshio, Y., Mori, T., Sakuda, M., Xu, C., Kuno, Y., Tacik, R., Kim, S.B., Okazawa, H., Choi, Y., Nishijima, K., Koshiba, M., Totsuka, Y., Suda, Y., Masashi Yokoyama, Bronner, C., Hartz, M., Martens, K., Marti, Ll., Suzuki, Y., Vagins, M.R., Martin, J.F., Konaka, A., Chen, S., Yang Zhang, Wilkes, R.J.

Phys.Rev.D 94 ( 5 ) 052001 - 052001 2016年9月

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掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevD.94.052001

arXiv

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Measurements of the atmospheric neutrino flux by Super-Kamiokande: Energy spectra, geomagnetic effects, and solar modulation 査読

E. Richard, K. Okumura, K. Abe, Y. Haga, Y. Hayato, M. Ikeda, K. Iyogi, J. Kameda, Y. Kishimoto, M. Miura, S. Moriyama, M. Nakahata, T. Nakajima, Y. Nakano, S. Nakayama, A. Orii, H. Sekiya, M. Shiozawa, A. Takeda, H. Tanaka, T. Tomura, R. A. Wendell, R. Akutsu, T. Irvine, T. Kajita, K. Kaneyuki, Y. Nishimura, L. Labarga, P. Fernandez, J. Gustafson, C. Kachulis, E. Kearns, J. L. Raaf, J. L. Stone, L. R. Sulak, S. Berkman, C. M. Nantais, H. A. Tanaka, S. Tobayama, M. Goldhaber, W. R. Kropp, S. Mine, P. Weatherly, M. B. Smy, H. W. Sobel, V. Takhistov, K. S. Ganezer, B. L. Hartfiel, J. Hill, N. Hong, J. Y. Kim, I. T. Lim, R. G. Park, A. Himmel, Z. Li, E. O'Sullivan, K. Scholberg, C. W. Walter, T. Wongjirad, T. Ishizuka, S. Tasaka, J. S. Jang, J. G. Learned, S. Matsuno, S. N. Smith, M. Friend, T. Hasegawa, T. Ishida, T. Ishii, T. Kobayashi, T. Nakadaira, K. Nakamura, Y. Oyama, K. Sakashita, T. Sekiguchi, T. Tsukamoto, A. T. Suzuki, Y. Takeuchi, T. Yano, S. V. Cao, T. Hiraki, S. Hirota, K. Huang, T. Kikawa, A. Minamino, T. Nakaya, K. Suzuki, Y. Fukuda, K. Choi, Y. Itow, T. Suzuki, P. Mijakowski, K. Frankiewicz, J. Hignight, J. Imber, C. K. Jung, X. Li, J. L. Palomino, M. J. Wilking, C. Yanagisawa, D. Fukuda, H. Ishino, T. Kayano, A. Kibayashi, Y. Koshio, T. Mori, M. Sakuda, C. Xu, Y. Kuno, R. Tacik, S. B. Kim, H. Okazawa, Y. Choi, K. Nishijima, M. Koshiba, Y. Totsuka, Y. Suda, M. Yokoyama, C. Bronner, M. Hartz, K. Martens, Ll. Marti, Y. Suzuki, M. R. Vagins, J. F. Martin, A. Konaka, S. Chen, Y. Zhang, R. J. Wilkes

PHYSICAL REVIEW D 94 ( 5 ) 1 - 31 2016年9月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

A comprehensive study of the atmospheric neutrino flux in the energy region from sub-GeV up to several TeV using the Super-Kamiokande (SK) water Cherenkov detector is presented in this paper. The energy and azimuthal spectra, and variation over time, of the atmospheric nu(e) + (nu) over bar (e) and nu(mu) + (nu) over bar (mu) fluxes are measured. The energy spectra are obtained using an iterative unfolding method by combining various event topologies with differing energy responses. The azimuthal spectra depending on energy and zenith angle, and their modulation by geomagnetic effects, are also studied. A predicted east-west asymmetry is observed in both the nu(e) and nu(mu) samples at 8.0 sigma and 6.0 sigma significance, respectively, and an indication that the asymmetry dipole angle changes depending on the zenith angle was seen at the 2.2 sigma level. The measured energy and azimuthal spectra are consistent with the current flux models within the estimated systematic uncertainties. A study of the long-term correlation between the atmospheric neutrino flux and the solar magnetic activity cycle is performed, and a weak preference for a correlation was seen at the 1.1 sigma level, using SK-I-SK-IV data spanning a 20-year period. For several particularly strong solar activity periods, corresponding to Forbush decrease events, no theoretical prediction is available but a deviation below the typical neutrino event rate is seen at the 2.4 sigma level. The seasonal modulation of the neutrino flux is also examined, but the change in flux at the SK site is predicted to be negligible, and, as expected, no evidence for a seasonal correlation is seen.

DOI： 10.1103/PhysRevD.94.052001

Web of Science

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Radiation Tolerance of Aluminum Microwave Kinetic Inductance Detector 査読

K. Karatsu, A. Dominjon, T. Fujino, T. Funaki, M. Hazumi, F. Irie, H. Ishino, Y. Kida, T. Matsumura, K. Mizukami, M. Naruse, T. Nitta, T. Noguchi, N. Oka, S. Sekiguchi, Y. Sekimoto, M. Sekine, S. Shu, Y. Yamada, T. Yamashita

JOURNAL OF LOW TEMPERATURE PHYSICS 184 ( 3-4 ) 540 - 546 2016年8月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：SPRINGER/PLENUM PUBLISHERS

Microwave kinetic inductance detector (MKID) is one of the candidates of focal plane detector for future satellite missions such as LiteBIRD. For the space use of MKIDs, the radiation tolerance is one of the challenges to be characterized prior to the launch. Aluminum (Al) MKIDs with 50 nm thickness on silicon substrate and on sapphire substrate were irradiated with a proton beam of 160 MeV at the heavy ion medical accelerator in Chiba. The total water-equivalent absorbed dose was 10 krad which should simulate the worst radiation absorption of 5 years observation at the Lagrange point L2. We measured characteristics of these MKIDs before and after the irradiation. We found no significant changes on resonator quality factor, responsivity, and recombination time of quasi-particles. The change on electrical noise equivalent power was also evaluated, and no significant increase was found at the noise level of W/root Hz.

DOI： 10.1007/s10909-016-1523-y

Web of Science

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LiteBIRD: Mission Overview and Focal Plane Layout 査読

T. Matsumura, Y. Akiba, K. Arnold, J. Borrill, R. Chendra, Y. Chinone, A. Cukierman, T. de Haan, M. Dobbs, A. Dominjon, T. Elleflot, J. Errard, T. Fujino, H. Fuke, N. Goeckner-wald, N. Halverson, P. Harvey, M. Hasegawa, K. Hattori, M. Hattori, M. Hazumi, C. Hill, G. Hilton, W. Holzapfel, Y. Hori, J. Hubmayr, K. Ichiki, J. Inatani, M. Inoue, Y. Inoue, F. Irie, K. Irwin, H. Ishino, H. Ishitsuka, O. Jeong, K. Karatsu, S. Kashima, N. Katayama, I. Kawano, B. Keating, A. Kibayashi, Y. Kibe, Y. Kida, K. Kimura, N. Kimura, K. Kohri, E. Komatsu, C. L. Kuo, S. Kuromiya, A. Kusaka, A. Lee, E. Linder, H. Matsuhara, S. Matsuoka, S. Matsuura, S. Mima, K. Mitsuda, K. Mizukami, H. Morii, T. Morishima, M. Nagai, T. Nagasaki, R. Nagata, M. Nakajima, S. Nakamura, T. Namikawa, M. Naruse, K. Natsume, T. Nishibori, K. Nishijo, H. Nishino, T. Nitta, A. Noda, T. Noguchi, H. Ogawa, S. Oguri, I. S. Ohta, C. Otani, N. Okada, A. Okamoto, A. Okamoto, T. Okamura, G. Rebeiz, P. Richards, S. Sakai, N. Sato, Y. Sato, Y. Segawa, S. Sekiguchi, Y. Sekimoto, M. Sekine, U. Seljak, B. Sherwin, K. Shinozaki, S. Shu, R. Stompor, H. Sugai, H. Sugita, T. Suzuki, A. Suzuki, O. Tajima, S. Takada, S. Takakura, K. Takano, Y. Takei, T. Tomaru, N. Tomita, P. Turin, S. Utsunomiya, Y. Uzawa, T. Wada, H. Watanabe, B. Westbrook, N. Whitehorn, Y. Yamada, N. Yamasaki, T. Yamashita, M. Yoshida, T. Yoshida, Y. Yotsumoto

JOURNAL OF LOW TEMPERATURE PHYSICS 184 ( 3-4 ) 824 - 831 2016年8月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：SPRINGER/PLENUM PUBLISHERS

LiteBIRD is a proposed CMB polarization satellite project to probe the inflationary B-mode signal. The satellite is designed to measure the tensor-to-scalar ratio with a 68 % confidence level uncertainty of , including statistical, instrumental systematic, and foreground uncertainties. LiteBIRD will observe the full sky from the second Lagrange point for 3 years. We have a focal plane layout for observing frequency coverage that spans 40-402 GHz to characterize the galactic foregrounds. We have two detector candidates, transition-edge sensor bolometers and microwave kinetic inductance detectors. In both cases, a telecentric focal plane consists of approximately superconducting detectors. We will present the mission overview of LiteBIRD, the project status, and the TES focal plane layout.

DOI： 10.1007/s10909-016-1542-8

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Real-Time Supernova Neutrino Burst Monitor at Super-Kamiokande 査読

Abe, K., Haga, Y., Hayato, Y., Ikeda, M., Iyogi, K., Kameda, J., Kishimoto, Y., Miura, M., Moriyama, S., Nakahata, M., Nakano, Y., Nakayama, S., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Tanaka, H., Tomura, T., Ueno, K., Wendell, R.A., Yokozawa, T., Irvine, T., Kajita, T., Kametani, I., Kaneyuki, K., Lee, K.P., McLachlan, T., Nishimura, Y., Richard, E., Okumura, K., Luis Labarga, Fernandez, P., Berkman, S., H. A. Tanaka, Tobayama, S., Gustafson, J., Kearns, E., Raaf, J.L., Stone, J.L., Sulak, L.R., Goldhaber, M., Carminati, G., Kropp, W.R., Mine, S., Weatherly, P., Renshaw, A., Smy, M.B., Sobel, H.W., Takhistov, V., Ganezer, K.S., Hartfiel, B.L., Hill, J., Keig, W.E., Hong, N., Kim, J.Y., Lim, I.T., Akiri, T., Alexander Himmel, Scholberg, K., Walter, C.W., Wongjirad, T., Ishizuka, T., Tasaka, S., Jang, J.S., Learned, J.G., Matsuno, S., Smith, S.N., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A.T., Takeuchi, Y., Bronner, C., Hirota, S., Huang, K., Ieki, K., Kikawa, T., Minamino, A., Murakami, A., Nakaya, T., Suzuki, K., Takahashi, S., Tateishi, K., Fukuda, Y., Choi, K., Itow, Y., Mitsuka, G., Mijakowski, P., Hignight, J., Imber, J., Jung, C.K., Yanagisawa, C., Wilking, M.J., Ishino, H., Kibayashi, A., Koshio, Y., Mori, T., Sakuda, M., Yamaguchi, R., Yano, T., Kuno, Y., Tacik, R., Kim, S.B., Okazawa, H., Choi, Y., Nishijima, K., Koshiba, M., Suda, Y., Totsuka, Y., Masashi Yokoyama, Martens, K., Marti, Ll., Vagins, M.R., Martin, J.F., de Perio, P., Konaka, A., Chen, S., Yang Zhang, Connolly, K., Wilkes, R.J.

Astropart.Phys. 81 39 - 48 2016年8月

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担当区分：責任著者記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1016/j.astropartphys.2016.04.003

Web of Science

arXiv

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Millimeter-wave broadband antireflection coatings using laser ablation of subwavelength structures 査読

Tomotake Matsumura, Karl Young, Qi Wen, Shaul Hanany, Hirokazu Ishino, Yuki Inoue, Masashi Hazumi, Juergen Koch, Oliver Suttman, Viktor Schuetz

APPLIED OPTICS 55 ( 13 ) 3502 - 3509 2016年5月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：OPTICAL SOC AMER

We report on the first use of laser ablation to make submillimeter, broadband, antireflection coatings (ARCs) based on subwavelength structures (SWSs) on alumina and sapphire. We used a 515 nm laser to produce pyramid-shaped structures with a pitch of about 320 mu m and a total height of near 800 mu m. Transmission measurements between 70 and 140 GHz are in agreement with simulations using electromagnetic propagation software. The simulations indicate that SWS-ARCs with the fabricated shape should have a fractional bandwidth response of Delta nu/nu(center) = 0.55 centered on 235 GHz for which reflections are below 3%. Extension of the bandwidth to both lower and higher frequencies, between a few tens of gigahertz and a few terahertz, should be straightforward with appropriate adjustment of laser ablation parameters. (C) 2016 Optical Society of America

DOI： 10.1364/AO.55.003502

Web of Science

PubMed

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First measurement of radioactive isotope production through cosmic-ray muon spallation in Super-Kamiokande IV 査読

Y. Zhang, K. Abe, Y. Haga, Y. Hayato, M. Ikeda, K. Iyogi, J. Kameda, Y. Kishimoto, M. Miura, S. Moriyama, M. Nakahata, T. Nakajima, Y. Nakano, S. Nakayama, A. Orii, H. Sekiya, M. Shiozawa, A. Takeda, H. Tanaka, T. Tomura, R. A. Wendell, T. Irvine, T. Kajita, I. Kametani, K. Kaneyuki, Y. Nishimura, E. Richard, K. Okumura, L. Labarga, P. Fernandez, J. Gustafson, C. Kachulis, E. Kearns, J. L. Raaf, J. L. Stone, L. R. Sulak, S. Berkman, C. M. Nantais, H. A. Tanaka, S. Tobayama, M. Goldhaber, G. Carminati, N. J. Griskevich, W. R. Kropp, S. Mine, A. Renshaw, M. B. Smy, H. W. Sobel, V. Takhistov, P. Weatherly, K. S. Ganezer, B. L. Hartfiel, J. Hill, N. Hong, J. Y. Kim, I. T. Lim, A. Himmel, Z. Li, K. Scholberg, C. W. Walter, T. Wongjirad, T. Ishizuka, S. Tasaka, J. S. Jang, J. G. Learned, S. Matsuno, S. N. Smith, M. Friend, T. Hasegawa, T. Ishida, T. Ishii, T. Kobayashi, T. Nakadaira, K. Nakamura, Y. Oyama, K. Sakashita, T. Sekiguchi, T. Tsukamoto, A. T. Suzuki, Y. Takeuchi, T. Yano, S. Hirota, K. Huang, K. Ieki, T. Kikawa, A. Minamino, T. Nakaya, K. Suzuki, S. Takahashi, Y. Fukuda, K. Choi, Y. Itow, T. Suzuki, P. Mijakowski, K. Frankiewicz, J. Hignight, J. Imber, C. K. Jung, X. Li, J. L. Palomino, M. J. Wilking, C. Yanagisawa, H. Ishino, T. Kayano, A. Kibayashi, Y. Koshio, T. Mori, M. Sakuda, Y. Kuno, R. Tacik, S. B. Kim, H. Okazawa, Y. Choi, K. Nishijima, M. Koshiba, Y. Suda, Y. Totsuka, M. Yokoyama, C. Bronner, M. Hartz, K. Martens, Ll. Marti, Y. Suzuki, M. R. Vagins, J. F. Martin, P. de Perio, A. Konaka, S. Chen, R. J. Wilkes

PHYSICAL REVIEW D 93 ( 1 ) 012004 - 012004 2016年1月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

Cosmic-ray-muon spallation-induced radioactive isotopes with beta decays are one of the major backgrounds for solar, reactor, and supernova relic neutrino experiments. Unlike in scintillator, production yields for cosmogenic backgrounds in water have not been exclusively measured before, yet they are becoming more and more important in next generation neutrino experiments designed to search for rare signals. We have analyzed the low-energy trigger data collected at Super-Kamiokande IV in order to determine the production rates of B-12, N-12, N-16, Be-11, Li-9, He-8, C-9, Li-8, B-8, and C-15. These rates were extracted from fits to time differences between parent muons and subsequent daughter beta's by fixing the known isotope lifetimes. Since 9Li can fake an inverse-beta-decay reaction chain via a beta + n cascade decay, producing an irreducible background with detected energy up to a dozen MeV, a dedicated study is needed for evaluating its impact on future measurements; the application of a neutron tagging technique using correlated triggers was found to improve this Li-9 measurement. The measured yields were generally found to be comparable with theoretical calculations, except the cases of the isotopes Li-8/B-8 and Li-9.

DOI： 10.1103/PhysRevD.93.012004

Web of Science

arXiv

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LiteBIRD

Hirokazu Ishino

PROCEEDINGS OF THE 12TH INTERNATIONAL SYMPOSIUM ON COSMOLOGY AND PARTICLE ASTROPHYSICS (COSPA 2015) 43 1 - 8 2016年

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記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）出版者・発行元：WORLD SCIENTIFIC PUBL CO PTE LTD

We present LiteBIRD, a satellite project dedicated for the detection of the CMB B-mode polarization. The purpose of LiteBIRD is to measure the tensor-to-scalar ratio r with a precision of sigma(r) < 0.001 to test large-single-field slow-roll inflation models by scanning all the sky area for three years at the sun-earth L2 with the sensitivity of 3.2 mu K.arcmin. We report an overview and the status of the project, including the ongoing detector and systematic studies.

DOI： 10.1142/S2010194516601927

Web of Science

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Optical Designing of LiteBIRD

Hajime Sugai, Shingo Kashima, Kimihiro Kimura, Tomotake Matsumura, Masanori Inoue, Makoto Ito, Toshiyuki Nishibori, Yutaro Sekimoto, Hirokazu Ishino, Yuki Sakurai, Hiroaki Imada, Takenori Fujii

SPACE TELESCOPES AND INSTRUMENTATION 2016: OPTICAL, INFRARED, AND MILLIMETER WAVE 9904 2016年

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記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）出版者・発行元：SPIE-INT SOC OPTICAL ENGINEERING

LiteBIRD aims to detect the footprint of the primordial gravitational wave on the Cosmic Microwave Background (CMB) in a form of polarization pattern called B mode. In order to separate CMB from the Galactic emission, our measurements cover 35 GHz to 450 GHz. The LiteBIRD optics consists of two telescopes: a crossed Dragone type for lower frequencies, which provides a compact configuration with a wide field of view, and a refractor type for higher frequencies. The whole optical system is cooled down to around 5 K to minimize the thermal emission. We use two kinds of approaches of designing calculations as well as the experimental confirmation particularly for the lower frequency telescope.

DOI： 10.1117/12.2232008

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Search for Nucleon and Dinucleon Decays with an Invisible Particle and a Charged Lepton in the Final State at the Super-Kamiokande Experiment 査読

Takhistov, V., Abe, K., Haga, Y., Hayato, Y., Ikeda, M., Iyogi, K., Kameda, J., Kishimoto, Y., Miura, M., Moriyama, S., Nakahata, M., Nakajima, T., Nakano, Y., Nakayama, S., Orii, A., Sekiya, H., Shiozawa, M., Takeda, A., Tanaka, H., Tomura, T., Wendell, R.A., Irvine, T., Kajita, T., Kametani, I., Kaneyuki, K., Nishimura, Y., Richard, E., Okumura, K., Labarga, L., Fernandez, P., Gustafson, J., Kachulis, C., Kearns, E., Raaf, J.L., Stone, J.L., Sulak, L.R., Berkman, S., Nantais, C.M., Tanaka, H.A., Tobayama, S., Goldhaber, M., Carminati, G., Kropp, W.R., Mine, S., Weatherly, P., Renshaw, A., Smy, M.B., Sobel, H.W., Ganezer, K.S., Hartfiel, B.L., Hill, J., Hong, N., Kim, J.Y., Lim, I.T., Himmel, A., Li, Z., Scholberg, K., Walter, C.W., Wongjirad, T., Ishizuka, T., Tasaka, S., Jang, J.S., Learned, J.G., Matsuno, S., Smith, S.N., Friend, M., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A.T., Takeuchi, Y., Yano, T., Hirota, S., Huang, K., Ieki, K., Kikawa, T., Minamino, A., Nakaya, T., Suzuki, K., Takahashi, S., Fukuda, Y., Choi, K., Itow, Y., Suzuki, T., Mijakowski, P., Frankiewicz, K., Hignight, J., Imber, J., Jung, C.K., Li, X., Palomino, J.L., Wilking, M.J., Yanagisawa, C., Ishino, H., Kayano, T., Kibayashi, A., Koshio, Y., Mori, T., Sakuda, M., Kuno, Y., Tacik, R., Kim, S.B., Okazawa, H., Choi, Y., Nishijima, K., Koshiba, M., Suda, Y., Totsuka, Y., Yokoyama, M., Bronner, C., Hartz, M., Martens, K., Marti, Ll., Suzuki, Y., Vagins, M.R., Martin, J.F., de Perio, P., Konaka, A., Chen, S., Zhang, Y., Wilkes, R.J.

Phys.Rev.Lett. 115 ( 12 ) 121803 - 121803 2015年9月

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevLett.115.121803

Web of Science

arXiv

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SOIKID, SOI pixel detector combined with superconducting detector KID

H. Ishino, A. Kibayashi, Y. Kida, Y. Yamada

arXiv:1507.01326 2015年7月

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記述言語：英語

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Search for dinucleon decay into pions at Super-Kamiokande 査読

Gustafson, J., Abe, K., Haga, Y., Hayato, Y., Ikeda, M., Iyogi, K., Kameda, J., Kishimoto, Y., Miura, M., Moriyama, S., Nakahata, M., Nakajima, T., Nakano, Y., Nakayama, S., Orii, A., Sekiya, H., Shiozawa, M., Takeda, A., Tanaka, H., Tomura, T., Wendell, R.A., Irvine, T., Kajita, T., Kametani, I., Kaneyuki, K., Nishimura, Y., Richard, E., Okumura, K., Labarga, L., Fernandez, P., Berkman, S., Tanaka, H.A., Tobayama, S., Kearns, E., Raaf, J.L., Stone, J.L., Sulak, L.R., Goldhaber, M., Carminati, G., Kropp, W.R., Mine, S., Weatherly, P., Renshaw, A., Smy, M.B., Sobel, H.W., Takhistov, V., Ganezer, K.S., Hartfiel, B.L., Hill, J., Hong, N., Kim, J.Y., Lim, I.T., Akiri, T., Himmel, A., Scholberg, K., Walter, C.W., Wongjirad, T., Ishizuka, T., Tasaka, S., Jang, J.S., Learned, J.G., Matsuno, S., Smith, S.N., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A.T., Takeuchi, Y., Yano, T., Hirota, S., Huang, K., Ieki, K., Kikawa, T., Minamino, A., Nakaya, T., Suzuki, K., Takahashi, S., Fukuda, Y., Choi, K., Itow, Y., Mitsuka, G., Suzuki, T., Mijakowski, P., Hignight, J., Imber, J., Jung, C.K., Palomino, J.L., Yanagisawa, C., Ishino, H., Kayano, T., Kibayashi, A., Koshio, Y., Mori, T., Sakuda, M., Kuno, Y., Tacik, R., Kim, S.B., Okazawa, H., Choi, Y., Nishijima, K., Koshiba, M., Suda, Y., Totsuka, Y., Yokoyama, M., Bronner, C., Martens, K., Marti, Ll., Suzuki, Y., Vagins, M.R., Martin, J.F., de Perio, P., Konaka, A., Wilking, M.J., Chen, S., Zhang, Y., Wilkes, R.J.

Phys.Rev.D 91 ( 7 ) 072009 - 072009 2015年4月

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevD.91.072009

arXiv

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The Search for $n-\bar{n}$ oscillation in Super-Kamiokande I 査読

Abe, K., Hayato, Y., Iida, T., Ishihara, K., Kameda, J., Koshio, Y., Minamino, A., Mitsuda, C., Miura, M., Moriyama, S., Nakahata, M., Obayashi, Y., Ogawa, H., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takeuchi, Y., Ueshima, K., Watanabe, H., Higuchi, I., Ishihara, C., Ishitsuka, M., Kajita, T., Kaneyuki, K., Mitsuka, G., Nakayama, S., Nishino, H., Okumura, K., Saji, C., Takenaga, Y., Clark, S., Desai, S., Dufour, F., Herfurth, A., Kearns, E., Likhoded, S., Litos, M., Raaf, J. L., Stone, J.L., Sulak, L. R., Wang, W., Goldhaber, M., Casper, D., Cravens, J.P., Dunmore, J., Griskevich, J., Kropp, W.R., Liu, D.W., Mine, S., Regis, C., Smy, M. B., Sobel, H.W., Vagins, M. R., Ganezer, K. S., Hartfiel, B., Hill, J., Keig, W. E., Jang, J. S., Jeoung, I. S., Kim, J. Y., Lim, I. T., Scholberg, K., Tanimoto, N., Walter, C.W., Wendell, R., Ellsworth, R. W., Tasaka, S., Guillian, G., Learned, J. G., Matsuno, S., Messier, M.D., Ichikawa, A. K., Ishida, T., Ishii, T., Iwashita, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nishikawa, K., Nitta, K., Oyama, Y., Suzuki, A. T., Hasegawa, M., Maesaka, H., Nakaya, T., Sasaki, T., Sato, H., Tanaka, H., Yamamoto, S., Yokoyama, M., Haines, T. J., Dazeley, S., Hatakeyama, S., Svoboda, R., Sullivan, G. W., Gran, R., Habig, A., Fukuda, Y., Itow, Y., Koike, T., Jung, C. K., Kato, T., Kobayashi, K., McGrew, C., Sarrat, A., Terri, R., Yanagisawa, C., Tamura, N., Ikeda, M., Sakuda, M., Kuno, Y., Yoshida, M., Kim, S. B., Yang, B. S., Ishizuka, T., Okazawa, H., Choi, Y., Seo, H.K., Gando, Y., Hasegawa, T., Inoue, K., Ishii, H., Nishijima, K., Ishino, H., Watanabe, Y., Koshiba, M., Totsuka, Y., Chen, S., Deng, Z., Liu, Y., Kielczewska, D., Berns, H. G., Shiraishi, K. K., Thrane, E., Washburn, K., Wilkes, R.J.

Phys.Rev.D 91 ( 072006 ) 072006 - 072006 2015年4月

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevD.91.072006

Web of Science

arXiv

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Search for neutrinos from annihilation of captured low-mass dark matter particles in the Sun by Super-Kamiokande 査読

Koun Choi, Abe, K., Haga, Y., Hayato, Y., Iyogi, K., Kameda, J., Kishimoto, Y., Miura, M., Moriyama, S., Nakahata, M., Nakano, Y., Nakayama, S., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Tomura, T., Wendell, R.A., Irvine, T., Kajita, T., Kametani, I., Kaneyuki, K., Lee, K.P., Nishimura, Y., Okumura, K., McLachlan, T., Labarga, L., Kearns, E., Raaf, J.L., Stone, J.L., Sulak, L.R., Berkman, S., Tanaka, H.A., Tobayama, S., Goldhaber, M., Carminati, G., Kropp, W.R., Mine, S., Renshaw, A., Smy, M.B., Sobel, H.W., Ganezer, K.S., Hill, J., Hong, N., Kim, J.Y., Lim, I.T., Akiri, T., Himmel, A., Scholberg, K., Walter, C.W., Wongjirad, T., Ishizuka, T., Tasaka, S., Jang, J.S., Learned, J.G., Matsuno, S., Smith, S.N., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A.T., Takeuchi, Y., Bronner, C., Hirota, S., Huang, K., Ieki, K., Ikeda, M., Kikawa, T., Minamino, A., Nakaya, T., Suzuki, K., Takahashi, S., Fukuda, Y., Itow, Y., Mitsuka, G., Mijakowski, P., Hignight, J., Imber, J., Jung, C.K., Yanagisawa, C., Ishino, H., Kibayashi, A., Koshio, Y., Mori, T., Sakuda, M., Yano, T., Kuno, Y., Tacik, R., Kim, S.B., Okazawa, H., Choi, Y., Nishijima, K., Koshiba, M., Totsuka, Y., Yokoyama, M., Martens, K., Marti, Ll., Vagins, M.R., Martin, J.F., de Perio, P., Konaka, A., Wilking, M.J., Chen, S., Zhang, Y., Wilkes, R.J.

Phys.Rev.Lett. 114 ( 14 ) 141301 - 141301 2015年4月

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevLett.114.141301

DOI： 10.1038/nphys3334

arXiv

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Limits on sterile neutrino mixing using atmospheric neutrinos in Super-Kamiokande 査読

Abe, K., Haga, Y., Hayato, Y., Ikeda, M., Iyogi, K., Kameda, J., Kishimoto, Y., Miura, M., Moriyama, S., Nakahata, M., Nakano, Y., Nakayama, S., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Tanaka, H., Tomura, T., Ueno, K., Wendell, R.A., Yokozawa, T., Irvine, T., Kajita, T., Kametani, I., Kaneyuki, K., Lee, K.P., McLachlan, T., Nishimura, Y., Richard, E., Okumura, K., Labarga, L., Fernandez, P., Gustafson, J., Kearns, E., Raaf, J. L., Stone, J. L., Sulak, L. R., Berkman, S., Tanaka, H. A., Tobayama, S., Goldhaber, M., Carminati, G., Kropp, W.R., Mine, S., Weatherly, P., Renshaw, A., Smy, M.B., Sobel, H.W., Takhistov, V., Ganezer, K.S., Hartfiel, B.L., Hill, J., Keig, W.E., Hong, N., Kim, J.Y., Lim, I.T., Akiri, T., Himmel, A., Scholberg, K., Walter, C.W., Wongjirad, T., Ishizuka, T., Tasaka, S., Jang, J.S., Learned, J.G., Matsuno, S., Smith, S.N., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A.T., Takeuchi, Y., Bronner, C., Hirota, S., Huang, K., Ieki, K., Kikawa, T., Minamino, A., Murakami, A., Nakaya, T., Suzuki, K., Takahashi, S., Tateishi, K., Fukuda, Y., Choi, K., Itow, Y., Mitsuka, G., Mijakowski, P., Hignight, J., Imber, J., Jung, C.K., Yanagisawa, C., Ishino, H., Kibayashi, A., Koshio, Y., Mori, T., Sakuda, M., Yamaguchi, R., Yano, T., Kuno, Y., Tacik, R., Kim, S.B., Okazawa, H., Choi, Y., Nishijima, K., Koshiba, M., Suda, Y., Totsuka, Y., Yokoyama, M., Martens, K., Marti, Ll., Vagins, M.R., Martin, J.F., de Perio, P., Konaka, A., Wilking, M.J., Chen, S., Zhang, Y., Connolly, K., Wilkes, R.J.

Phys.Rev.D 91 ( 052019 ) 052019 - 052019 2015年3月

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevD.91.052019

arXiv

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Test of Lorentz invariance with atmospheric neutrinos 査読

Abe, K., Haga, Y., Hayato, Y., Ikeda, M., Iyogi, K., Kameda, J., Kishimoto, Y., Miura, M., Moriyama, S., Nakahata, M., Nakano, Y., Nakayama, S., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Tanaka, H., Tomura, T., Ueno, K., Wendell, R.A., Yokozawa, T., Irvine, T., Kajita, T., Kametani, I., Kaneyuki, K., Lee, K.P., McLachlan, T., Nishimura, Y., Richard, E., Okumura, K., Labarga, L., Fernandez, P., Gustafson, J., Kearns, E., Raaf, J.L., Stone, J.L., Sulak, L.R., Berkman, S., Tanaka, H.A., Tobayama, S., Goldhaber, M., Carminati, G., Kropp, W.R., Mine, S., Weatherly, P., Renshaw, A., Smy, M.B., Sobel, H.W., Takhistov, V., Ganezer, K.S., Hartfiel, B.L., Hill, J., Keig, W.E., Hong, N., Kim, J.Y., Lim, I.T., Akiri, T., Himmel, A., Scholberg, K., Walter, C.W., Wongjirad, T., Ishizuka, T., Tasaka, S., Jang, J.S., Learned, J.G., Matsuno, S., Smith, S.N., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A.T., Takeuchi, Y., Bronner, C., Hirota, S., Huang, K., Ieki, K., Kikawa, T., Minamino, A., Murakami, A., Nakaya, T., Suzuki, K., Takahashi, S., Tateishi, K., Fukuda, Y., Choi, K., Itow, Y., Mitsuka, G., Mijakowski, P., Hignight, J., Imber, J., Jung, C.K., Yanagisawa, C., Ishino, H., Kibayashi, A., Koshio, Y., Mori, T., Sakuda, M., Yamaguchi, R., Yano, T., Kuno, Y., Tacik, R., Kim, S.B., Okazawa, H., Choi, Y., Nishijima, K., Koshiba, M., Suda, Y., Totsuka, Y., Yokoyama, M., Martens, K., Marti, Ll., Vagins, M.R., Martin, J.F., de Perio, P., Konaka, A., Wilking, M.J., Chen, S., Zhang, Y., Connolly, K., Wilkes, R.J.

Phys.Rev.D 91 ( 5 ) 052003 - 052003 2015年3月

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevD.91.052003

Web of Science

arXiv

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Development of Microwave Kinetic Inductance Detector for Cosmological Observations 査読

Kenichi Karatsu, Satoru Mima, Shugo Oguri, Jihoon Choi, R. M. Thushara Damayanthi, Agnes Dominjon, Noboru Furukawa, Hirokazu Ishino, Hikaru Ishitsuka, Atsuko Kibayashi, Yoshiaki Kibe, Hitoshi Kiuchi, Kensuke Koga, Masato Naruse, Tom Nitta, Takashi Noguchi, Takashi Okada, Chiko Otani, Shigeyuki Sekiguchi, Yutaro Sekimoto, Masakazu Sekine, Shibo Shu, Osamu Tajima, Kenta Takahashi, Nozomu Tomita, Hiroki Watanabe, Mitsuhiro Yoshida

IEICE TRANSACTIONS ON ELECTRONICS E98C ( 3 ) 207 - 218 2015年3月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG

A precise measurement of Cosmic Microwave Background (CMB) provides us rich information about the universe. In particular, its asymmetric polarization patterns, B-modes, are smoking gun signature of inflationary universe. Magnitude of the B-modes is order of 10 nK. Its measurement requires a high sensitive millimeter-wave telescope with a large number of superconducting detectors on its focal plane. Microwave Kinetic Inductance Detector (MKID) is appropriate detector for this purpose. MKID camera has been developed in cooperation of National Astronomical Observatory of Japan (NAOJ), Institute of Physical and Chemical Research (RIKEN), High Energy Accelerator Research Organization (KEK), and Okayama University. Our developments of MKID include: fabrication of high-quality superconducting film; optical components for a camera use; and readout electronics. For performance evaluation of total integrated system of our MKID camera, a calibration system was also developed. The system was incorporated in a 0.1 K dilution refrigerator with modulated polarization source. These developed technologies are applicable to other types of detectors.

DOI： 10.1587/transele.E98.C.207

Web of Science

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Supernova Relic Neutrino search with neutron tagging at Super-Kamiokande-IV 査読

H. Zhang, K. Abe, Y. Hayato, K. Iyogi, J. Kameda, Y. Kishimoto, M. Miura, S. Moriyama, M. Nakahata, Y. Nakano, S. Nakayama, H. Sekiya, M. Shiozawa, Y. Suzuki, A. Takeda, Y. Takenaga, T. Tomura, K. Ueno, T. Yokozawa, R. A. Wendell, H. Kaji, T. Kajita, K. Kaneyuki, K. P. Lee, Y. Nishimura, K. Okumura, T. McLachlan, L. Labarga, S. Barkman, T. S. Tanaka, S. Tobayama, E. Kearns, J. L. Raaff, J. L. Stone, L. R. Sulak, M. Goldhaber, K. Bays, G. Carminati, W. R. Kropp, S. Mine, A. Renshaw, M. B. Smy, H. W. Sobel, K. S. Ganezer, J. Hill, W. E. Keig, J. S. Jang, J. Y. Kim, I. T. Lim, T. Akiri, K. Scholberg, C. W. Walter, T. Wongjirad, T. Ishizuka, S. Tasaka, J. G. Learned, S. Matsuno, S. N. Smith, T. Hasegawa, T. Ishida, T. Ishii, T. Kobayashi, T. Nakadaira, K. Nakamura, K. Nishikawa, Y. Oyama, K. Sakashita, T. Sekiguchi, T. Tsukamoto, A. T. Suzuki, Y. Takeuchi, K. Ieki, M. Ikeda, H. Kikawa, K. Huang, A. Minamino, A. Murakami, T. Nakaya, K. Suzuki, S. Takahashi, Y. Fukuda, K. Choi, Y. Itow, G. Mitsuka, P. Mijakowski, J. Hignight, J. Imber, C. K. Jung, I. Taylor, C. Yanagisawa, H. Ishino, A. Kibayashi, Y. Koshio, T. Mori, M. Sakuda, R. Yamaguchi, T. Yano, Y. Kuno, R. Tacik, S. B. Kim, H. Okazawa, Y. Choi, K. Nishijima, M. Koshiba, Y. Totsuka, M. Yokoyama, K. Martens, Ll. Marti, M. R. Vagins, J. F. Martin, P. deperio, A. Konaka, M. J. Wilking, S. Chen, H. Sui, Z. Yang, Y. Zhang, K. Connolly, M. Dziomba, R. J. Wilkes

ASTROPARTICLE PHYSICS 60 41 - 46 2015年1月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER

A search for Supernova Relic Neutrinos '(v) over bar (e)'s is first conducted via inverse-beta-decay by tagging neutron capture on hydrogen at Super-Kamiokande-IV. The neutron tagging efficiency is determined to be (17.74 +/- 0.04(stat). +/- 1.05(sys).)%, while the corresponding accidental background probability is (1.06 +/- 0.01(stat). +/- 0.18(sys),)%. Using 960 days of data, we obtain 13 inverse-beta-decay candidates in the range of E-(v) over bare, between 13.3 MeV and 31.3 MeV. All of the observed candidates are attributed to background. Upper limits at 90% C.L. are calculated in the absence of a signal. (C) 2014 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.astropartphys.2014.05.004

Web of Science

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Development of Microwave Kinetic Inductance Detector for Cosmological Observations 査読

KARATSU Kenichi, KIBAYASHI Atsuko, KIBE Yoshiaki, KIUCHI Hitoshi, KOGA Kensuke, NARUSE Masato, NITTA Tom, NOGUCHI Takashi, OKADA Takashi, OTANI Chiko, SEKIGUCHI Shigeyuki, MIMA Satoru, SEKIMOTO Yutaro, SEKINE Masakazu, SHU Shibo, TAJIMA Osamu, TAKAHASHI Kenta, TOMITA Nozomu, WATANABE Hiroki, YOSHIDA Mitsuhiro, OGURI Shugo, CHOI Jihoon, M. THUSHARA DAMAYANTHI R., DOMINJON Agnes, FURUKAWA Noboru, ISHINO Hirokazu, ISHITSUKA Hikaru

IEICE Transactions on Electronics 98 ( 3 ) 207 - 218 2015年

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：一般社団法人電子情報通信学会

A precise measurement of Cosmic Microwave Background (CMB) provides us rich information about the universe. In particular, its asymmetric polarization patterns, B-modes, are smoking gun signature of inflationary universe. Magnitude of the B-modes is order of 10 nK. Its measurement requires a high sensitive millimeter-wave telescope with a large number of superconducting detectors on its focal plane. Microwave Kinetic Inductance Detector (MKID) is appropriate detector for this purpose. MKID camera has been developed in cooperation of National Astronomical Observatory of Japan (NAOJ), Institute of Physical and Chemical Research (RIKEN), High Energy Accelerator Research Organization (KEK), and Okayama University. Our developments of MKID include: fabrication of high-quality superconducting film; optical components for a camera use; and readout electronics. For performance evaluation of total integrated system of our MKID camera, a calibration system was also developed. The system was incorporated in a 0.1 K dilution refrigerator with modulated polarization source. These developed technologies are applicable to other types of detectors.

DOI： 10.1587/transele.E98.C.207

Web of Science

CiNii Article

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The Physics of the B Factories 査読

A. J. Bevan, B. Golob, Th. Mannel, S. Prell, B. D. Yabsley, K. Abe, H. Aihara, F. Anulli, N. Arnaud, T. Aushev, M. Beneke, J. Beringer, F. Bianchi, I. I. Bigi, M. Bona, N. Brambilla, J. Brodzicka, P. Chang, M. J. Charles, C. H. Cheng, H. -Y. Cheng, R. Chistov, P. Colangelo, J. P. Coleman, A. Drutskoy, V. P. Druzhinin, S. Eidelman, G. Eigen, A. M. Eisner, R. Faccini, K. T. Flood, P. Gambino, A. Gaz, W. Gradl, H. Hayashii, T. Higuchi, W. D. Hulsbergen, T. Hurth, T. Iijima, R. Itoh, P. D. Jackson, R. Kass, Yu. G. Kolomensky, E. Kou, P. Krizan, A. Kronfeld, S. Kumano, Y. J. Kwon, T. E. Latham, D. W. G. S. Leith, V. L. Uth, F. Martinez-Vidal, B. T. Meadows, R. Mussa, M. Nakao, S. Nishida, J. Ocariz, S. L. Olsen, P. Pakhlov, G. Pakhlova, A. Palano, A. Pich, S. Playfer, A. Poluektov, F. C. Porter, S. H. Robertson, J. M. Roney, A. Roodman, Y. Sakai, C. Schwanda, A. J. Schwartz, R. Seidl, S. J. Sekula, M. Steinhauser, K. Sumisawa, E. S. Swanson, F. Tackmann, K. Trabelsi, S. Uehara, S. Uno, R. van de Water, G. Vasseur, W. Verkerke, R. Waldi, M. Z. Wang, F. F. Wilson, J. Zupan, A. Zupanc, I. Adachi, J. Albert, Sw. Banerjee, M. Bellis, E. Ben-Haim, P. Biassoni, R. N. Cahn, C. Cartaro, J. Chauveau, C. Chen, C. C. Chiang, R. Cowan, J. Dalseno, M. Davier, C. Davies, J. C. Dingfelder, B. Echenard, D. Epifanov, B. G. Fulsom, A. M. Gabareen, J. W. Gary, R. Godang, M. T. Graham, A. Hafner, B. Hamilton, T. Hartmann, K. Hayasaka, C. Hearty, Y. Iwasaki, A. Khodjamirian, A. Kusaka, A. Kuzmin, G. D. Lafferty, A. Lazzaro, J. Li, D. Lindemann, O. Long, A. Lusiani, G. Marchiori, M. Martinelli, K. Miyabayashi, R. Mizuk, G. B. Mohanty, D. R. Muller, H. Nakazawa, P. Ongmongkolkul, S. Pacetti, F. Palombo, T. K. Pedlar, L. E. Piilonen, A. Pilloni, V. Poireau, K. Prothmann, T. Pulliam, M. Rama, B. N. Ratcliff, P. Roudeau, S. Schrenk, T. Schroeder, K. R. Schubert, C. P. Shen, B. Shwartz, A. Soffer, E. P. Solodov, A. Somov, M. Staric, S. Stracka, A. V. Telnov, K. Yu. Todyshev, T. Tsuboyama, T. Uglov, A. Vinokurova, J. J. Walsh, Y. Watanabe, E. Won, G. Wormser, D. H. Wright, S. Ye, C. C. Zhang, S. Abachi, A. Abashian, K. Abe, K. Abe, N. Abe, R. Abe, T. Abe, T. Abe, G. S. Abrams, I. Adam, K. Adamczyk, A. Adametz, T. Adye, A. Agarwal, H. Ahmed, M. Ahmed, S. Ahmed, B. S. Ahn, H. S. Ahn, I. J. R. Aitchison, K. Akai, S. Akar, M. Akatsu, M. Akemoto, R. Akhmetshin, R. Akre, M. S. Alam, J. N. Albert, R. Aleksan, J. P. Alexander, G. Alimonti, M. T. Allen, J. Allison, T. Allmendinger, J. R. G. Alsmiller, D. Altenburg, K. E. Alwyn, Q. An, J. Anderson, R. Andreassen, D. Andreotti, M. Andreotti, J. C. Andress, C. Angelini, D. Anipko, A. Anjomshoaa, P. L. Anthony, E. A. Antillon, E. Antonioli, K. Aoki, J. F. Arguin, K. Arinstein, K. Arisaka, K. Asai, M. Asai, Y. Asano, D. J. Asgeirsson, D. M. Asner, T. Aso, M. L. Aspinwall, D. Aston, H. Atmacan, B. Aubert, V. Aulchenko, R. Ayad, T. Azemoon, T. Aziz, V. Azzolini, D. E. Azzopardi, M. A. Baak, J. J. Back, S. Bagnasco, S. 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Ozcan, H. P. Paar, C. Padoan, K. Paick, H. Palka, B. Pan, Y. Pan, W. Panduro Vazquez, J. Panetta, A. I. Panova, R. S. Panvini, E. Panzenboeck, E. Paoloni, P. Paolucci, M. Pappagallo, S. Paramesvaran, C. S. Park, C. W. Park, H. Park, H. Park, H. K. Park, K. S. Park, W. Park, R. J. Parry, N. Parslow, S. Passaggio, F. C. Pastore, P. M. Patel, C. Patrignani, P. Patteri, T. Pavel, J. Pavlovich, D. J. Payne, L. S. Peak, D. R. Peimer, M. Pelizaeus, R. Pellegrini, M. Pelliccioni, C. C. Peng, J. C. Peng, K. C. Peng, T. Peng, Y. Penichot, S. Pennazzi, M. R. Pennington, R. C. Penny, A. Penzkofer, A. Perazzo, A. Perez, M. Perl, M. Pernicka, J. -P. Perroud, I. M. Peruzzi, R. Pestotnik, K. Peters, M. Peters, B. A. Petersen, T. C. Petersen, E. Petigura, S. Petrak, A. Petrella, M. Petric, A. Petzold, M. G. Pia, T. Piatenko, D. Piccolo, M. Piccolo, L. Piemontese, M. Piemontese, M. Pierini, S. Pierson, M. Pioppi, G. Piredda, M. Pivk, S. Plaszczynski, F. Polci, A. Pompili, P. Poropat, M. Posocco, C. T. Potter, R. J. L. Potter, V. Prasad, E. Prebys, E. Prencipe, J. Prendki, R. Prepost, M. Prest, M. Prim, M. Pripstein, X. Prudent, S. Pruvot, E. M. T. Puccio, M. V. Purohit, N. D. Qi, H. Quinn, J. Raaf, R. Rabberman, F. Raffaelli, G. Ragghianti, S. Rahatlou, A. M. Rahimi, R. Rahmat, A. Y. Rakitin, A. Randle-Conde, P. Rankin, I. Rashevskaya, S. Ratkovsky, G. Raven, V. Re, M. Reep, J. J. Regensburger, J. Reidy, R. Reif, B. Reisert, C. Renard, F. Renga, S. Ricciardi, J. D. Richman, J. L. Ritchie, M. Ritter, C. Rivetta, G. Rizzo, C. Roat, P. Robbe, D. A. Roberts, A. I. Robertson, E. Robutti, S. Rodier, D. M. Rodriguez, J. L. Rodriguez, R. Rodriguez, N. A. Roe, M. Roehrken, W. Roethel, J. Rolquin, L. Romanov, A. Romosan, M. T. Ronan, G. Rong, F. J. Ronga, L. Roos, N. Root, M. Rosen, E. I. Rosenberg, A. Rossi, A. Rostomyan, M. Rotondo, E. Roussot, J. Roy, M. Rozanska, Y. Rozen, Y. Rozen, A. E. Rubin, W. O. Ruddick, A. M. Ruland, K. Rybicki, A. Ryd, S. Ryu, J. Ryuko, S. Sabik, R. Sacco, M. A. Saeed, F. Safai Tehrani, H. Sagawa, H. Sahoo, S. Sahu, M. Saigo, T. Saito, S. Saitoh, K. Sakai, H. Sakamoto, H. Sakaue, M. Saleem, A. A. Salnikov, E. Salvati, F. Salvatore, A. Samuel, D. A. Sanders, P. Sanders, S. Sandilya, F. Sandrelli, W. Sands, W. R. Sands, M. Sanpei, D. Santel, L. Santelj, V. Santoro, A. Santroni, T. Sanuki, T. R. Sarangi, S. Saremi, A. Sarti, T. Sasaki, N. Sasao, M. Satapathy, Nobuhiko Sato, Noriaki Sato, Y. Sato, N. Satoyama, A. Satpathy, V. Savinov, N. Savvas, O. H. Saxton, K. Sayeed, S. F. Schaffner, T. Schalk, S. Schenk, J. R. Schieck, T. Schietinger, C. J. Schilling, R. H. Schindler, S. Schmid, R. E. Schmitz, H. Schmuecker, O. Schneider, G. Schnell, P. Sch Onmeier, K. C. Schofield, G. Schott, H. Schroeder, M. Schram, J. Schubert, J. Schuemann, J. Schultz, B. A. Schumm, M. H. Schune, U. Schwanke, H. Schwarz, J. Schwiening, R. Schwierz, R. F. Schwitters, C. Sciacca, G. Sciolla, I. J. Scott, J. Seeman, A. Seiden, R. Seitz, T. Seki, A. I. Sekiya, S. Semenov, D. Semmler, S. Sen, K. Senyo, O. Seon, V. V. Serbo, S. I. Serednyakov, B. Serfass, M. Serra, J. Serrano, Y. Settai, R. Seuster, M. E. Sevior, K. V. Shakhova, L. Shang, M. Shapkin, V. Sharma, V. Shebalin, V. G. Shelkov, B. C. Shen, D. Z. Shen, Y. T. Shen, D. J. Sherwood, T. Shibata, T. A. Shibata, H. Shibuya, T. Shidara, K. Shimada, M. Shimoyama, S. Shinomiya, J. G. Shiu, H. W. Shorthouse, L. I. Shpilinskaya, A. Sibidanov, E. Sicard, A. Sidorov, V. Sidorov, V. Siegle, M. Sigamani, M. C. Simani, M. Simard, G. Simi, F. Simon, F. Simonetto, N. B. Sinev, H. Singh, J. B. Singh, R. Sinha, S. Sitt, Yu. I. Skovpen, R. J. Sloane, P. Smerkol, A. J. S. Smith, D. Smith, D. Smith, D. Smith, D. S. Smith, J. G. Smith, A. Smol, H. L. Snoek, A. Snyder, R. Y. So, R. J. Sobie, E. Soderstrom, A. Soha, Y. S. Sohn, M. D. Sokoloff, A. Sokolov, P. Solagna, E. Solovieva, N. Soni, P. Sonnek, V. Sordini, B. Spaan, S. M. Spanier, E. Spencer, V. Speziali, M. Spitznagel, P. Spradlin, H. Staengle, R. Stamen, M. Stanek, S. Stanic, J. Stark, M. Steder, H. Steininger, M. Steinke, J. Stelzer, E. Stevanato, A. Stocchi, R. Stock, H. Stoeck, D. P. Stoker, R. Stroili, D. Strom, P. Strother, J. Strube, B. Stugu, J. Stypula, D. Su, R. Suda, R. Sugahara, A. Sugi, T. Sugimura, A. Sugiyama, S. Suitoh, M. K. Sullivan, M. Sumihama, T. Sumiyoshi, D. J. Summers, L. Sun, L. Sun, S. Sun, J. E. Sundermann, H. F. Sung, Y. Susaki, P. Sutcliffe, A. Suzuki, J. Suzuki, J. I. Suzuki, K. Suzuki, S. Suzuki, S. Y. Suzuki, J. E. Swain, S. K. Swain, S. T'Jampens, M. Tabata, K. Tackmann, H. Tajima, O. Tajima, K. Takahashi, S. Takahashi, T. Takahashi, F. Takasaki, T. Takayama, M. Takita, K. Tamai, U. Tamponi, N. Tamura, N. Tan, P. Tan, K. Tanabe, T. Tanabe, H. A. Tanaka, J. Tanaka, M. Tanaka, S. Tanaka, Y. Tanaka, K. Tanida, N. Taniguchi, P. Taras, N. Tasneem, G. Tatishvili, T. Tatomi, M. Tawada, F. Taylor, G. N. Taylor, G. P. Taylor, V. I. Telnov, L. Teodorescu, R. Ter-Antonyan, Y. Teramoto, D. Teytelman, G. Therin, Ch. Thiebaux, D. Thiessen, E. W. Thomas, J. M. Thompson, F. Thorne, X. C. Tian, M. Tibbetts, I. Tikhomirov, J. S. Tinslay, G. Tiozzo, V. Tisserand, V. Tocut, W. H. Toki, E. W. Tomassini, M. Tomoto, T. Tomura, E. Torassa, E. Torrence, S. Tosi, C. Touramanis, J. C. Toussaint, S. N. Tovey, P. P. Trapani, E. Treadwell, G. Triggiani, S. Trincaz-Duvoid, W. Trischuk, D. Troost, A. Trunov, K. L. Tsai, Y. T. Tsai, Y. Tsujita, K. Tsukada, T. Tsukamoto, J. M. Tuggle, A. Tumanov, Y. W. Tung, L. Turnbull, J. Turner, M. Turri, K. Uchida, M. Uchida, Y. Uchida, M. Ueki, K. Ueno, K. Ueno, N. Ujiie, K. A. Ulmer, Y. Unno, P. Urquijo, Y. Ushiroda, Y. Usov, M. Usseglio, Y. Usuki, U. Uwer, J. Va'vra, S. E. Vahsen, G. Vaitsas, A. Valassi, E. Vallazza, A. Vallereau, P. Vanhoefer, W. C. Van Hoek, C. Van Hulse, D. Van Winkle, G. Varner, E. W. Varnes, K. E. Varvell, G. Vasileiadis, Y. S. Velikzhanin, M. Verderi, S. Versille, K. Vervink, B. Viaud, P. B. Vidal, S. Villa, P. Villanueva-Perez, E. L. Vinograd, L. Vitale, G. M. Vitug, C. Voss, C. Voci, C. Voena, A. Volk, J. H. Von Wimmersperg-Toeller, V. Vorobyev, A. Vossen, G. Vuagnin, C. O. Vuosalo, K. Wacker, A. P. Wagner, D. L. Wagner, G. Wagner, M. N. Wagner, S. R. Wagner, D. E. Wagoner, D. Walker, W. Walkowiak, D. Wallom, C. C. Wang, C. H. Wang, J. Wang, J. G. Wang, K. Wang, L. Wang, L. L. Wang, P. Wang, P. Wang, T. J. Wang, W. F. Wang, X. L. Wang, Y. F. Wang, F. R. Wappler, M. Watanabe, A. T. Watson, J. E. Watson, N. K. Watson, M. Watt, J. H. Weatherall, M. Weaver, T. Weber, R. Wedd, J. T. Wei, A. W. Weidemann, A. J. R. Weinstein, W. A. Wenzel, C. A. West, C. G. West, T. J. West, E. White, R. M. White, J. Wicht, L. Widhalm, J. Wiechczynski, U. Wienands, L. Wilden, M. Wilder, D. C. Williams, G. Williams, J. C. Williams, K. M. Williams, M. I. Williams, S. Y. Willocq, J. R. Wilson, M. G. Wilson, R. J. Wilson, F. Winklmeier, L. O. Winstrom, M. A. Winter, W. J. Wisniewski, M. Wittgen, J. Wittlin, W. Wittmer, R. Wixted, A. Woch, B. J. Wogsland, E. Won, Q. K. Wong, B. C. Wray, A. C. Wren, D. M. Wright, C. H. Wu, J. Wu, S. L. Wu, H. W. Wulsin, S. M. Xella, Q. L. Xie, Y. Xie, Y. Xie, Z. Z. Xu, Ch. Yeche, Y. Yamada, M. Yamaga, A. Yamaguchi, H. Yamaguchi, T. Yamaki, H. Yamamoto, N. Yamamoto, R. K. Yamamoto, S. Yamamoto, T. Yamanaka, H. Yamaoka, J. Yamaoka, Y. Yamaoka, Y. Yamashita, M. Yamauchi, D. S. Yan, Y. Yan, H. Yanai, S. Yanaka, H. Yang, R. Yang, S. Yang, A. K. Yarritu, S. Yashchenko, J. Yashima, Z. Yasin, Y. Yasu, S. W. Ye, P. Yeh, J. I. Yi, K. Yi, M. Yi, Z. W. Yin, J. Ying, G. Yocky, K. Yokoyama, M. Yokoyama, T. Yokoyama, K. Yoshida, M. Yoshida, Y. Yoshimura, C. C. Young, C. X. Yu, Z. Yu, C. Z. Yuan, Y. Yuan, F. X. Yumiceva, Y. Yusa, A. N. Yushkov, H. Yuta, V. Zacek, S. B. Zain, A. Zallo, S. Zambito, D. Zander, S. L. Zang, D. Zanin, B. G. Zaslavsky, Q. L. Zeng, A. Zghiche, B. Zhang, J. Zhang, J. Zhang, L. Zhang, L. M. Zhang, S. Q. Zhang, Z. P. Zhang, H. W. Zhao, H. W. Zhao, M. Zhao, Z. G. Zhao, Y. Zheng, Y. H. Zheng, Z. P. Zheng, V. Zhilich, P. Zhou, R. Y. Zhu, Y. S. Zhu, Z. M. Zhu, V. Zhulanov, T. Ziegler, V. Ziegler, G. Zioulas, M. Zisman, M. Zito, D. Zuercher, N. Zwahlen, O. Zyukova, T. Zivko, D. Zontar

EUROPEAN PHYSICAL JOURNAL C 74 ( 11 ) I - 898 2014年11月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：SPRINGER

DOI： 10.1140/epjc/s10052-014-3026-9

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Search for proton decay via $p\to\nuνK^+$ using 260 kiloton·year data of Super-Kamiokande 査読

Abe, K., Hayato, Y., Iyogi, K., Kameda, J., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Wendell, R.A., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takenaga, Y., Ueno, K., Yokozawa, T., Kaji, H., Kajita, T., Kaneyuki, K., Lee, K.P., Okumura, K., McLachlan, T., Labarga, L., Kearns, E., Raaf, J.L., Stone, J.L., Sulak, L.R., Goldhaber, M., Bays, K., Carminati, G., Kropp, W.R., Mine, S., Renshaw, A., Smy, M.B., Sobel, H.W., Ganezer, K.S., Hill, J., Keig, W.E., Jang, J.S., Kim, J.Y., Lim, I.T., Albert, J.B., Scholberg, K., Walter, C.W., Wongjirad, T., Ishizuka, T., Tasaka, S., Learned, J.G., Matsuno, S., Smith, S.N., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nishikawa, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A.T., Takeuchi, Y., Ieki, K., Ikeda, M., Kubo, H., Minamino, A., Murakami, A., Nakaya, T., Fukuda, Y., Choi, K., Itow, Y., Mitsuka, G., Miyake, M., Mijakowski, P., Hignight, J., Imber, J., Jung, C.K., Taylor, I., Yanagisawa, C., Ishino, H., Kibayashi, A., Koshio, Y., Mori, T., Sakuda, M., Takeuchi, J., Kuno, Y., Kim, S.B., Okazawa, H., Choi, Y., Nishijima, K., Koshiba, M., Totsuka, Y., Yokoyama, M., Martens, K., Marti, Ll., Obayashi, Y., Vagins, M.R., Chen, S., Sui, H., Yang, Z., Zhang, H., Connolly, K., Dziomba, M., Wilkes, R.J.

Phys.Rev.D 90 ( 7 ) 072005 - 072005 2014年10月

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevD.90.072005

Web of Science

arXiv

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その他リンク： http://physics.aps.org/synopsis-for/10.1103/PhysRevD.90.072005
Search for Nucleon Decay via $n \to \bar{\nu} \pi^{0}$ and $p \to \bar{\nu} \pi^{+}$ in Super-Kamiokande 査読

Abe, K., Hayato, Y., Iida, T., Iyogi, K., Kameda, J., Koshio, Y., Kozuma, Y., Marti, Ll., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Obayashi, Y., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takenaga, Y., Ueno, K., Ueshima, K., Yamada, S., Yokozawa, T., Ishihara, C., Kaji, H., Kajita, T., Kaneyuki, K., Lee, K.P., McLachlan, T., Okumura, K., Shimizu, Y., Tanimoto, N., Labarga, L., Kearns, E., Litos, M., Raaf, J.L., Stone, J.L., Sulak, L.R., Goldhaber, M., Bays, K., Kropp, W.R., Mine, S., Regis, C., Renshaw, A., Smy, M.B., Sobel, H.W., Ganezer, K.S., Hill, J., Keig, W.E., Jang, J.S., Kim, J.Y., Lim, I.T., Albert, J.B., Scholberg, K., Walter, C.W., Wendell, R., Wongjirad, T.M., Ishizuka, T., Tasaka, S., Learned, J.G., Matsuno, S., Smith, S.N., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nishikawa, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A.T., Takeuchi, Y., Ikeda, M., Minamino, A., Nakaya, T., Fukuda, Y., Itow, Y., Mitsuka, G., Tanaka, T., Jung, C.K., Lopez, G.D., Taylor, I., Yanagisawa, C., Ishino, H., Kibayashi, A., Mino, S., Mori, T., Sakuda, M., Toyota, H., Kuno, Y., Yoshida, M., Kim, S.B., Yang, B.S., Okazawa, H., Choi, Y., Nishijima, K., Koshiba, M., Yokoyama, M., Totsuka, Y., Martens, K., Schuemann, J., Vagins, M.R., Chen, S., Heng, Y., Yang, Z., Zhang, H., Kielczewska, D., Mijakowski, P., Connolly, K., Dziomba, M., Thrane, E., Wilkes, R.J.

Phys.Rev.Lett. 113 ( 12 ) 121802 - 121802 2014年9月

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevLett.113.121802

Web of Science

arXiv

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Search for Trilepton Nucleon Decay via p -> e(+)vv and p -> mu(+)vv in the Super-Kamiokande Experiment 査読

V. Takhistov, K. Abe, Y. Haga, Y. Hayato, M. Ikeda, K. Iyogi, J. Kameda, Y. Kishimoto, M. Miura, S. Moriyama, M. Nakahata, Y. Nakano, S. Nakayama, H. Sekiya, M. Shiozawa, Y. Suzuki, A. Takeda, H. Tanaka, T. Tomura, K. Ueno, R. A. Wendell, T. Yokozawa, T. Irvine, T. Kajita, I. Kametani, K. Kaneyuki, K. P. Lee, T. McLachlan, Y. Nishimura, E. Richard, K. Okumura, L. Labarga, P. Fernandez, S. Berkman, H. A. Tanaka, S. Tobayama, J. Gustafson, E. Kearns, J. L. Raaf, J. L. Stone, L. R. Sulak, M. Goldhaber, G. Carminati, W. R. Kropp, S. Mine, P. Weatherly, A. Renshaw, M. B. Smy, H. W. Sobel, K. S. Ganezer, B. L. Hartfiel, J. Hill, W. E. Keig, N. Hong, J. Y. Kim, I. T. Lim, T. Akiri, A. Himmel, K. Scholberg, C. W. Walter, T. Wongjirad, T. Ishizuka, S. Tasaka, J. S. Jang, J. G. Learned, S. Matsuno, S. N. Smith, T. Hasegawa, T. Ishida, T. Ishii, T. Kobayashi, T. Nakadaira, K. Nakamura, Y. Oyama, K. Sakashita, T. Sekiguchi, T. Tsukamoto, A. T. Suzuki, Y. Takeuchi, C. Bronner, S. Hirota, K. Huang, K. Ieki, T. Kikawa, A. Minamino, A. Murakami, T. Nakaya, K. Suzuki, S. Takahashi, K. Tateishi, Y. Fukuda, K. Choi, Y. Itow, G. Mitsuka, P. Mijakowski, J. Hignight, J. Imber, C. K. Jung, C. Yanagisawa, H. Ishino, A. Kibayashi, Y. Koshio, T. Mori, M. Sakuda, R. Yamaguchi, T. Yano, Y. Kuno, R. Tacik, S. B. Kim, H. Okazawa, Y. Choi, K. Nishijima, M. Koshiba, Y. Suda, Y. Totsuka, M. Yokoyama, K. Martens, Ll. Marti, M. R. Vagins, J. F. Martin, P. de Perio, A. Konaka, M. J. Wilking, S. Chen, Y. Zhang, K. Connolly, R. J. Wilkes

PHYSICAL REVIEW LETTERS 113 ( 10 ) 1 - 6 2014年9月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

The trilepton nucleon decay modes p -> e(+)nu nu and p -> mu(+)nu nu violate vertical bar Delta(B - L)vertical bar by two units. Using data from a 273.4 kt yr exposure of Super-Kamiokande a search for these decays yields a fit consistent with no signal. Accordingly, lower limits on the partial lifetimes of tau(p -> e+nu nu) > 1.7 x 10(32) years and tau(p ->mu+nu nu) > 2.2 x 10(32) years at a 90% confidence level are obtained. These limits can constrain Grand Unified Theories which allow for such processes.

DOI： 10.1103/PhysRevLett.113.101801

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Mission Design of LiteBIRD 査読

T. Matsumura, Y. Akiba, J. Borrill, Y. Chinone, M. Dobbs, H. Fuke, A. Ghribi, M. Hasegawa, K. Hattori, M. Hattori, M. Hazumi, W. Holzapfel, Y. Inoue, K. Ishidoshiro, H. Ishino, H. Ishitsuka, K. Karatsu, N. Katayama, I. Kawano, A. Kibayashi, Y. Kibe, K. Kimura, N. Kimura, K. Koga, M. Kozu, E. Komatsu, A. Lee, H. Matsuhara, S. Mima, K. Mitsuda, K. Mizukami, H. Morii, T. Morishima, S. Murayama, M. Nagai, R. Nagata, S. Nakamura, M. Naruse, K. Natsume, T. Nishibori, H. Nishino, A. Noda, T. Noguchi, H. Ogawa, S. Oguri, I. Ohta, C. Otani, P. Richards, S. Sakai, N. Sato, Y. Sato, Y. Sekimoto, A. Shimizu, K. Shinozaki, H. Sugita, T. Suzuki, A. Suzuki, O. Tajima, S. Takada, S. Takakura, Y. Takei, T. Tomaru, Y. Uzawa, T. Wada, H. Watanabe, M. Yoshida, N. Yamasaki, T. Yoshida, K. Yotsumoto

JOURNAL OF LOW TEMPERATURE PHYSICS 176 ( 5-6 ) 733 - 740 2014年9月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：SPRINGER/PLENUM PUBLISHERS

LiteBIRD is a next-generation satellite mission to measure the polarization of the cosmic microwave background (CMB) radiation. On large angular scales the B-mode polarization of the CMB carries the imprint of primordial gravitational waves, and its precise measurement would provide a powerful probe of the epoch of inflation. The goal of LiteBIRD is to achieve a measurement of the characterizing tensor to scalar ratio to an uncertainty of . In order to achieve this goal we will employ a kilo-pixel superconducting detector array on a cryogenically cooled sub-Kelvin focal plane with an optical system at a temperature of 4 K. We are currently considering two detector array options; transition edge sensor (TES) bolometers and microwave kinetic inductance detectors. In this paper we give an overview of LiteBIRD and describe a TES-based polarimeter designed to achieve the target sensitivity of 2 K arcmin over the frequency range 50-320 GHz.

DOI： 10.1007/s10909-013-0996-1

Web of Science

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Development of Microwave Kinetic Inductance Detectors for a Detection of Phonons 査読

H. Ishino, A. Kibayashi, K. Hattori, M. Hazumi, Y. Kibe, S. Mima, N. Sato, M. Yoshida, H. Watanabe

JOURNAL OF LOW TEMPERATURE PHYSICS 176 ( 3-4 ) 161 - 167 2014年8月

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担当区分：筆頭著者記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：SPRINGER/PLENUM PUBLISHERS

We present a status of the development of microwave kinetic inductance detectors (MKIDs) for a detection of athermal phonons in a substrate. The energy deposited in the substrate is converted to athermal phonons. Athermal phonons arriving at the surface can break Cooper pairs in the MKIDs which are formed as a thin superconducting metal layer in the substrate surface. By counting the number of Cooper pairs broken and measuring the phonon arrival times, we can measure the amount of deposited energy and its position. MKIDs are suitable for the frequency-domain multiplexing readout, which enables us to readout hundreds of pixels simultaneously and, hence, to detect athermal phonons with a large detection efficiency. We fabricated MKIDs with a combination of aluminum and niobium on a silicon substrate, and then irradiated it with particles from an Am source. We detected phonons and made a rough estimation of the phonon propagation velocity of 1.1-1.3 km/s. We found that a thin insulator layer can block the phonon propagation from the substrate to the thin metal layer.

DOI： 10.1007/s10909-013-1025-0

Web of Science

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Search for Dinucleon Decay into Kaons in Super-Kamiokande 査読

Litos, M., Abe, K., Hayato, Y., Iida, T., Ikeda, M., Iyogi, K., Kameda, J., Kobayashi, K., Koshio, Y., Kozuma, Y., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Obayashi, Y., Ogawa, H., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takenaga, Y., Takeuchi, Y., Ueno, K., Ueshima, K., Watanabe, H., Yamada, S., Yokozawa, T., Hazama, S., Ishihara, C., Kaji, H., Kajita, T., Kaneyuki, K., McLachlan, T., Okumura, K., Shimizu, Y., Tanimoto, N., Vagins, M. R., Kearns, E., Stone, J. L., Sulak, L. R., Dufour, F., Raaf, J. L., Henning, B., Goldhaber, M., Bays, K., Casper, D., Cravens, J. P., Kropp, W. R., Mine, S., Regis, C., Smy, M. B., Sobel, H. W., Ganezer, K. S., Hill, J., Keig, W. E., Jang, J. S., Kim, J. Y., Lim, I. T., Albert, J. B., Wongjirad, T., Wendell, R., Scholberg, K., Walter, C. W., Tasaka, S., Learned, J. G., Matsuno, S., Watanabe, Y., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nishikawa, K., Nishino, H., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A. T., Minamino, A., Nakaya, T., Fukuda, Y., Itow, Y., Mitsuka, G., Tanaka, T., Jung, C. K., Lopez, G., McGrew, C., Terri, R., Yanagisawa, C., Tamura, N., Ishino, H., Kibayashi, A., Mino, S., Mori, T., Sakuda, M., Toyota, H., Kuno, Y., Yoshida, M., Kim, S. B., Yang, B. S., Ishizuka, T., Okazawa, H., Choi, Y., Nishijima, K., Yokosawa, Y., Koshiba, M., Yokoyama, M., Totsuka, Y., Chen, S., Heng, Y., Yang, Z., Zhang, H., Kielczewska, D., Mijakowski, P., Connolly, K., Dziomba, M., Thrane, E., Wilkes, R. J.

Phys.Rev.Lett. 112 ( 13 ) 131803 - 131803 2014年4月

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevLett.112.131803

Web of Science

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First Indication of Terrestrial Matter Effects on Solar Neutrino Oscillation 査読

Renshaw, A., Abe, K., Hayato, Y., Iyogi, K., Kameda, J., Kishimoto, Y., Miura, M., Moriyama, S., Nakahata, M., Nakano, Y., Nakayama, S., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takenaga, Y., Tomura, T., Ueno, K., Yokozawa, T., Wendell, R.A., Irvine, T., Kajita, T., Kaneyuki, K., Lee, K.P., Nishimura, Y., Okumura, K., McLachlan, T., Labarga, L., Berkman, S., Tanaka, H.A., Tobayama, S., Kearns, E., Raaf, J.L., Stone, J.L., Sulak, L.R., Goldhabar, M., Bays, K., Carminati, G., Kropp, W.R., Mine, S., Smy, M.B., Sobel, H.W., Ganezer, K.S., Hill, J., Keig, W.E., Hong, N., Kim, J.Y., Lim, I.T., Akiri, T., Himmel, A., Scholberg, K., Walter, C.W., Wongjirad, T., Ishizuka, T., Tasaka, S., Jang, J.S., Learned, J.G., Matsuno, S., Smith, S.N., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A.T., Takeuchi, Y., Bronner, C., Hirota, S., Huang, K., Ieki, K., Ikeda, M., Kikawa, T., Minamino, A., Nakaya, T., Suzuki, K., Takahashi, S., Fukuda, Y., Choi, K., Itow, Y., Mitsuka, G., Mijakowski, P., Hignight, J., Imber, J., Jung, C.K., Yanagisawa, C., Ishino, H., Kibayashi, A., Koshio, Y., Mori, T., Sakuda, M., Yano, T., Kuno, Y., Tacik, R., Kim, S.B., Okazawa, H., Choi, Y., Nishijima, K., Koshiba, M., Totsuka, Y., Yokoyama, M., Martens, K., Marti, Ll., Vagins, M.R., Martin, J.F., de Perio, P., Konaka, A., Wilking, M.J., Chen, S., Zhang, Y., Wilkes, R.J.

Phys.Rev.Lett. 112 ( 9 ) 091805 - 091805 2014年3月

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevLett.112.091805

arXiv

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その他リンク： http://physicsworld.com/cws/article/news/2014/mar/13/superkamiokande-finds-that-neutrinos-change-flavour-at-night
Calibration of the Super-Kamiokande Detector 査読

Abe, K., Hayato, Y., Iida, T., Iyogi, K., Kameda, J., Kishimoto, Y., Koshio, Y., Marti, Ll., Miura, M., Moriyama, S., Nakahata, M., Nakano, Y., Nakayama, S., Obayashi, Y., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takenaga, Y., Tanaka, H., Tomura, T., Ueno, K., Wendell, R.A., Yokozawa, T., Irvine, T.J., Kaji, H., Kajita, T., Kaneyuki, K., Lee, K.P., Nishimura, Y., Okumura, K., Mclachlan, T., Labarga, L., Kearns, E., Raaf, J.L., Stone, J.L., Sulak, L.R., Berkman, S., Tanaka, H.A., Tobayama, S., Goldhaber, M., Bays, K., Carminati, G., Kropp, W.R., Mine, S., Renshaw, A., Smy, M.B., Sobel, H.W., Ganezer, K.S., Hill, J., Keig, W.E., Jang, J.S., Kim, J.Y., Lim, I.T., Hong, N., Akiri, T., Albert, J.B., Himmel, A., Scholberg, K., Walter, C.W., Wongjirad, T., Ishizuka, T., Tasaka, S., Learned, J.G., Matsuno, S., Smith, S.N., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nishikawa, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A.T., Takeuchi, Y., Huang, K., Ieki, K., Ikeda, M., Kikawa, T., Kubo, H., Minamino, A., Murakami, A., Nakaya, T., Otani, M., Suzuki, K., Takahashi, S., Fukuda, Y., Choi, K., Itow, Y., Mitsuka, G., Miyake, M., Mijakowski, P., Tacik, R., Hignight, J., Imber, J., Jung, C.K., Taylor, I., Yanagisawa, C., Idehara, Y., Ishino, H., Kibayashi, A., Mori, T., Sakuda, M., Yamaguchi, R., Yano, T., Kuno, Y., Kim, S.B., Yang, B.S., Okazawa, H., Choi, Y., Nishijima, K., Koshiba, M., Totsuka, Y., Yokoyama, M., Martens, K., Vagins, M.R., Martin, J.F., De Perio, P., Konaka, A., Wilking, M.J., Chen, S., Heng, Y., Sui, H., Yang, Z., Zhang, H., Zhenwei, Y., Connolly, K., Dziomba, M., Wilkes, R.J.

Nucl.Instrum.Meth.A 737 253 - 272 2014年2月

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掲載種別：研究論文（学術雑誌）

DOI： 10.1016/j.nima.2013.11.081

Web of Science

arXiv

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Development of the Superconducting Detectors for Applications to Particle Physics and Astrophysics 査読

Kibayashi Atsuko, Hazumi Masashi, Ishino Hirokazu, Kibe Yoshiaki, Mima Satoru, Otani Chiko, Sato Nobuaki, Watanabe Hiroki, Yamada Yosuke, Yoshida Mitsuhir

JPS Conference Proceedings 1 ( 1 ) 3118 2014年

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Development of Microwave Kinetic Inductance Detectors for phonon and photon detections

H. Ishino, A. Kibayashi, Y. Kibe, Y. Yamada, A. Okamoto, Y. Kida, M. Hazumi, N. Sato, H. Watanabe

Proceedings of Science 2014年

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記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）出版者・発行元：Proceedings of Science (PoS)

We present our recent developments of Microwave Kinetic Inductance Detectors (MKIDs) for phonon and photon detections. Cooper-pair breaking caused by deposited energy of phonons or photons changes the kinetic inductance of a resonator formed with a thin superconducting metal layer. The detection principle of the MKIDs enables us to have a frequency-domain multiplexing. We have developed an array of Lumped Element KID resonators for the detections of phonons from the substrate and visible light photons.

Scopus

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Search for Cosmic Background Neutrino Decay 査読

Shin-Hong, Kim, Yuji, Takeuchi, Kazuki, Nagata, Kota, Kasahara, Hirokazu, Ikeda, Shuji, Matsuura, Takehiko, Wada, Hirokazu, Ishino, Atsuko, Itsuki, Satoshi, Mima, Takuo, Yoshida, Yukihiro, Kato, Masashi, Hazumi, Yasuo, Arai, Erik, Ramberg, Jong-Hee, Yoo, Soo-Bong, Kim

JPS Conference Proceedings 1 013127 2014年

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記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）出版者・発行元：The Physical Society of Japan

DOI： 10.7566/JPSCP.1.013127

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Development of superconducting tunnel junction photon detector on SOI preamplifier board to search for radiative decays of cosmic background neutrino

Kota Kasahara, Shin-Hong Kim, Yuji Takeuchi, Ren Senzaki, Kazuki Nagata, Takuya Okudaira, Masahiro Kanamaru, Tatsuya Ichimura, Koya Moriuchi, Kenji Kiuchi, Yasuo Arai, Masashi Hazumi, Hirokazu Ikeda, Shuji Matsuura, Takehiko Wada, Satoru Mima, Hirokazu Ishino, Takuo Yoshida, Yukihiro Kato, Erik Ramberg, Mark Kozlovsky, Paul Ruvinov, Dmitri Segratskov

Proceedings of Science 2014年

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記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）出版者・発行元：Proceedings of Science (PoS)

We present a development of a novel photon detector based on superconducting tunnel junction (STJ) and silicon-on-Insulator (SOI) technology for application to an experiment to search for radiative decays of cosmic background neutrinos using photon energy spectrum in the cosmic infrared background region. The requirement of the detector for the experiment is a capability of photon-by-photon detection in the far-infrared region. In principle, a Nb/Al-STJ is expected to be able to detect a single far-infrared photon, however, it has not succeeded yet even with the STJ since the signal from the single far-infrared photon is much smaller than the readout noise level currently achieved. To solve this problem, we employ a preamplifier that can be operated at a cryogenic temperature below 1K to improve the signal-to-noise ratio in STJ readout signal. SOI preamplifier is a promising candidate as it was reproved to function at 4K by a JAXA and KEK group. We process a STJ directly on the SOI wafer with the preamplifier circuit to make the detector simple and compact. First we tested a STJ on a SOI board only with SOI-MOSFETs to verify the electrical contact between the STJ and the SOIFET electrodes as well as the STJ being processed without causing any damage on SOI-FET. We have confirmed that the SOI-FET shows an excellent performance below 1K and the STJ on the SOI can operate normally. Then we designed a more practical version of the SOI-STJ photon detector with a preamplifier circuit in the SOI wafer.

Scopus

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Development of superconducting tunnel junction detectors as a far-infrared single photon detector for neutrino decay search

Yuji Takeuchi, Shin-Hong Kim, Kenichi Takemasa, Kenji Kiuchi, Kazuki Nagata, Kota Kasahara, Takuya Okudaira, Tatsuya Ichimura, Masahiro Kanamaru, Kouya Moriuchi, Ren Senzaki, Hirokazu Ikeda, Shuji Matsuura, Takehiko Wada, Hirokazu Ishino, Atsuko Kibayashi, Satoru Mima, Takuo Yoshida, Shota Komura, Keisuke Orikasa, Ryuta Hirose, Yukihiro Kato, Masashi Hazumi, Yasuo Arai, Erik Ramberg, Jonghee Yoo, Mark Kozlovsky, Paul Rubinov, Dmitri Sergatskov, Soo-Bong Kim

Proceedings of Science 2014年

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記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）出版者・発行元：Proceedings of Science (PoS)

We present the development of Superconducting Tunnel Junction (STJ) detectors as a far-infrared single photon detector motivated by application to a search for the radiative decay of cosmic background neutrino. The photon energy spectrum from the neutrino radiative decays is expected to have a sharp edge at high energy end in a far-infrared region ranging from 14 meV to 25 meV (from 50 μm to 90 μm in wavelength). Thus, the detector is required to measure photon-by-photon energies with sufficiently high resolution to identify the edge structure. Detectors consisting of an array of niobium/aluminum STJ (Nb/Al-STJ) pixels with a diffraction grating and STJ using hafnium (Hf-STJ) are under consideration. Each Nb/Al-STJ pixel is capable of detecting single photons in the far-infrared region. The diffraction grating creates a variation in the photon wavelength across the pixel array. Hf-STJ is expected to have 2% energy resolution for single photon of 25 meV due to very small gap energy of hafnium.

Scopus

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Evidence for the Appearance of Atmospheric Tau Neutrinos in Super-Kamiokande 査読

Abe, K., Hayato, Y., Iida, T., Iyogi, K., Kameda, J., Koshio, Y., Kozuma, Y., Marti, Ll., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Obayashi, Y., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takenaga, Y., Ueno, K., Ueshima, K., Yamada, S., Yokozawa, T., Ishihara, C., Kaji, H., Kajita, T., Kaneyuki, K., Lee, K.P., McLachlan, T., Okumura, K., Shimizu, Y., Tanimoto, N., Labarga, L., Kearns, E., Litos, M., Raaf, J.L., Stone, J.L., Sulak, L.R., Goldhaber, M., Bays, K., Kropp, W.R., Mine, S., Regis, C., Renshaw, A., Smy, M.B., Sobel, H.W., Ganezer, K.S., Hill, J., Keig, W.E., Jang, J.S., Kim, J.Y., Lim, I.T., Albert, J.B., Scholberg, K., Walter, C.W., Wendell, R., Wongjirad, T.M., Ishizuka, T., Tasaka, S., Learned, J.G., Matsuno, S., Smith, S.N., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nishikawa, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A.T., Takeuchi, Y., Ikeda, M., Minamino, A., Nakaya, T., Fukuda, Y., Itow, Y., Mitsuka, G., Tanaka, T., Jung, C.K., Lopez, G.D., Taylor, I., Yanagisawa, C., Ishino, H., Kibayashi, A., Mino, S., Mori, T., Sakuda, M., Toyota, H., Kuno, Y., Yoshida, M., Kim, S.B., Yang, B.S., Okazawa, H., Choi, Y., Nishijima, K., Koshiba, M., Yokoyama, M., Totsuka, Y., Martens, K., Schuemann, J., Vagins, M.R., Chen, S., Heng, Y., Yang, Z., Zhang, H., Kielczewska, D., Mijakowski, P., Connolly, K., Dziomba, M., Thrane, E., Wilkes, R.J.

Phys.Rev.Lett. 110 ( 18 ) 181802 - 181802 2013年5月

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevLett.110.181802

arXiv

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Development of microwave kinetic inductance detectors and their readout system for LiteBIRD 査読

K. Hattori, M. Hazumi, H. Ishino, A. Kibayashi, Y. Kibe, S. Mima, T. Okamura, N. Sato, T. Tomaru, Y. Yamada, M. Yoshida, T. Yuasa, H. Watanabe

Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 732 306 - 310 2013年

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記述言語：英語掲載種別：研究論文（学術雑誌）

Primordial gravitational waves generated by inflation have produced an odd-parity pattern B-mode in the cosmic microwave background (CMB) polarization. LiteBIRD (Light satellite for the studies of B-mode polarization and Inflation from cosmic background Radiation Detection) aims at detecting this B-mode polarization precisely. It requires about 2000 detectors capable of detecting a frequency range from 50 GHz to 250 GHz with ultra low noise. Superconducting detectors are suitable for this requirement. We have fabricated and tested microwave kinetic inductance detectors (MKIDs) and developed a new readout system. We have designed antenna-coupled MKIDs. Quasi-particles are created by incident radiation and are detected as a change of the surface impedance of a superconductor strip. This change of the surface impedance is translated into the change of the resonant frequency of a microwave signal transmitted through the resonator. We also have developed a new readout system for MKIDs. The newly developed readout system is not only able to read out the amplitude and the phase data with the homodyne detection for multi-channels, but also provides a unique feature of tracking the resonant frequency of the target resonator. This mechanism enables us to detect signals with a large dynamic range. We report on the recent R&amp
D status of the developing MKIDs and on the read-out system for LiteBIRD. © 2013 Elsevier B.V.

DOI： 10.1016/j.nima.2013.08.019

Web of Science

Scopus

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Novel Frequency-Domain Multiplexing MKID Readout for the LiteBIRD Satellite 査読

K. Hattori, S. Ariyoshi, M. Hazumi, H. Ishino, A. Kibayashi, S. Mima, C. Otani, N. Satoh, T. Tomaru, M. Yoshida, H. Watanabe

JOURNAL OF LOW TEMPERATURE PHYSICS 167 ( 5-6 ) 671 - 677 2012年6月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：SPRINGER/PLENUM PUBLISHERS

The satellite LiteBIRD (Light satellite for the studies of B-mode polarization and Inflation from cosmic background Radiation Detection) is being designed to detect the B-mode polarization of the cosmic microwave background radiation. LiteBIRD will carry about 2,000 detectors for measurements in five bands (60, 80, 100, 150, and 220 GHz). Microwave kinetic inductance detectors (MKIDs) that can be multiplexed in a single readout line are suitable for the large focal plane detector array. We develop an MKID readout system for LiteBIRD to monitor the amplitude, phase, and resonant frequency of each MKID resonator simultaneously and follow movements of the resonant frequency caused by changes in the input radiation intensity. This mechanism enables us to have a larger dynamic range for the MKIDs, compared with a system that monitors the amplitude and phase on the resonant frequency. We also propose an MKID having a half-wavelength resonator. This MKID transmits the resonant microwave signal from one feedline to another. It can offer clear microwaves passing through the resonators, even if the coupling and internal quality factors are mismatched. With this MKID, our readout system can track resonance frequency changes much more easily. We present the status of the readout system development and demonstrate the performance with the half-wavelength MKID.

DOI： 10.1007/s10909-012-0506-x

Web of Science

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Search for GUT monopoles at Super–Kamiokande 査読

Ueno, K., Abe, K., Hayato, Y., Iida, T., Iyogi, K., Kameda, J., Koshio, Y., Kozuma, Y., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Obayashi, Y., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takenaga, Y., Ueshima, K., Yamada, S., Yokozawa, T., Martens, K., Schuemann, J., Vagins, M., Ishihara, C., Kaji, H., Kajita, T., Kaneyuki, K., McLachlan, T., Okumura, K., Shimizu, Y., Tanimoto, N., Kearns, E., Litos, M., Raaf, J.L., Stone, J.L., Sulak, L.R., Bays, K., Kropp, W.R., Mine, S., Regis, C., Renshaw, A., Smy, M.B., Sobel, H.W., Ganezer, K.S., Hill, J., Keig, W.E., Jang, J.S., Kim, J.Y., Lim, I.T., Albert, J.B., Scholberg, K., Walter, C.W., Wendell, R., Wongjirad, T., Ishizuka, T., Tasaka, S., Learned, J.G., Matsuno, S., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nishikawa, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A.T., Takeuchi, Y., Ikeda, M., Minamino, A., Nakaya, T., Labarga, L., Marti, Ll., Fukuda, Y., Itow, Y., Mitsuka, G., Tanaka, T., Jung, C.K., Lopez, G., Taylor, I., Yanagisawa, C., Ishino, H., Kibayashi, A., Mino, S., Mori, T., Sakuda, M., Toyota, H., Kuno, Y., Yoshida, M., Kim, S.B., Yang, B.S., Okazawa, H., Choi, Y., Nishijima, K., Koshiba, M., Totsuka, Y., Yokoyama, M., Chen, S., Heng, Y., Yang, Z., Zhang, H., Kielczewska, D., Mijakowski, P., Connolly, K., Dziomba, M., Thrane, E., Wilkes, R.J.

Astropart.Phys. 36 ( 1 ) 131 - 136 2012年5月

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1016/j.astropartphys.2012.05.008

Web of Science

arXiv

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Search for Proton Decay via $p -> \mu^+ K^0$ in Super-Kamiokande I, II, and III 査読

Regis, C., Abe, K., Hayato, Y., Iyogi, K., Kameda, J., Koshio, Y., Marti, Ll., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Obayashi, Y., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takenaga, Y., Ueno, K., Yokozawa, T., Kaji, H., Kajita, T., Kaneyuki, K., Lee, K.P., Okumura, K., McLachlan, T., Labarga, L., Kearns, E., Raaf, J.L., Stone, J.L., Sulak, L.R., Goldhaber, M., Bays, K., Carminati, G., Kropp, W.R., Mine, S., Renshaw, A., Smy, M.B., Sobel, H.W., Ganezer, K.S., Hill, J., Keig, W.E., Jang, J.S., Kim, J.Y., Lim, I.T., Albert, J.B., Scholberg, K., Walter, C.W., Wendell, R.A., Wongjirad, T., Ishizuka, T., Tasaka, S., Learned, J.G., Matsuno, S., Smith, S.N., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nishikawa, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A.T., Takeuchi, Y., Ieki, K., Ikeda, M., Kubo, H., Minamino, A., Murakami, A., Nakaya, T., Fukuda, Y., Choi, K., Itow, Y., Mitsuka, G., Miyake, M., Mijakowski, P., Hignight, J., Imber, J., Jung, C.K., Taylor, I., Yanagisawa, C., Ishino, H., Kibayashi, A., Mori, T., Sakuda, M., Takeuchi, J., Kuno, Y., Kim, S.B., Okazawa, H., Choi, Y., Nishijima, K., Koshiba, M., Totsuka, Y., Yokoyama, M., Martens, K., Vagins, M.R., Chen, S., Sui, H., Yang, Z., Zhang, H., Connolly, K., Dziomba, M., Wilkes, R.J.

Phys.Rev.D 86 ( 012006 ) 012006 - 012006 2012年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevD.86.012006

Web of Science

arXiv

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Supernova Relic Neutrino Search at Super-Kamiokande 査読

Bays, K., Iida, T., Abe, K., Hayato, Y., Iyogi, K., Kameda, J., Koshio, Y., Marti, L., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Obayashi, Y., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takenaga, Y., Ueno, K., Ueshima, K., Yamada, S., Yokozawa, T., Kaji, H., Kajita, T., Kaneyuki, K., McLachlan, T., Okumura, K., Lee, K.P., Martens, K., Vagins, M., Labarga, L., Kearns, E., Litos, M., Raaf, J.L., Stone, J.L., Sulak, L.R., Kropp, W.R., Mine, S., Regis, C., Renshaw, A., Smy, M.B., Sobel, H.W., Ganezer, K.S., Hill, J., Keig, W.E., Cho, S., Jang, J.S., Kim, J.Y., Lim, I.T., Albert, J., Scholberg, K., Walter, C.W., Wendell, R., Wongjirad, T., Ishizuka, T., Tasaka, S., Learned, J.G., Matsuno, S., Smith, S., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nishikawa, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A.T., Takeuchi, Y., Ikeda, M., Matsuoka, K., Minamino, A., Murakami, A., Nakaya, T., Fukuda, Y., Itow, Y., Mitsuka, G., Miyake, M., Tanaka, T., Hignight, J., Imber, J., Jung, C.K., Taylor, I., Yanagisawa, C., Kibayashi, A., Ishino, H., Mino, S., Sakuda, M., Mori, T., Toyota, H., Kuno, Y., Kim, S.B., Yang, B.S., Okazawa, H., Choi, Y., Nishijima, K., Koshiba, M., Totsuka, Y., Yokoyama, M., Heng, Y., Chen, S., Zhang, H., Yang, Z., Mijakowski, P., Connolly, K., Dziomba, M., Wilkes, R.J.

Phys.Rev.D 85 ( 052007 ) 052007 - 052007 2012年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevD.85.052007

Web of Science

arXiv

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Search for nucleon decay into charged antilepton plus meson in Super-Kamiokande i and II

Nishino, H., Abe, K., Hayato, Y., Iida, T., Ikeda, M., Kameda, J., Koshio, Y., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Obayashi, Y., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takenaga, Y., Takeuchi, Y., Ueno, K., Ueshima, K., Watanabe, H., Yamada, S., Hazama, S., Higuchi, I., Ishihara, C., Kaji, H., Kajita, T., Kaneyuki, K., Mitsuka, G., Okumura, K., Tanimoto, N., Dufour, F., Kearns, E., Litos, M., Raaf, J.L., Stone, J.L., Sulak, L.R., Goldhaber, M., Bays, K., Cravens, J.P., Kropp, W.R., Mine, S., Regis, C., Smy, M.B., Sobel, H.W., Ganezer, K.S., Hill, J., Keig, W.E., Jang, J.S., Kim, J.Y., Lim, I.T., Albert, J.B., Scholberg, K., Walter, C.W., Wendell, R., Ishizuka, T., Tasaka, S., Learned, J.G., Matsuno, S., Watanabe, Y., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nishikawa, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A.T., Minamino, A., Nakaya, T., Yokoyama, M., Fukuda, Y., Itow, Y., Tanaka, T., Jung, C.K., Lopez, G., McGrew, C., Yanagisawa, C., Tamura, N., Idehara, Y., Sakuda, M., Kuno, Y., Yoshida, M., Kim, S.B., Yang, B.S., Okazawa, H., Choi, Y., Seo, H.K., Furuse, Y., Nishijima, K., Yokosawa, Y., Koshiba, M., Totsuka, Y., Vagins, M.R., Chen, S., Heng, Y., Liu, J., Yang, Z., Zhang, H., Kielczewska, D., Connolly, K., Thrane, E., Wilkes, R.J.

Physical Review D - Particles, Fields, Gravitation and Cosmology 85 ( 11 ) 2012年

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掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevD.85.112001

Scopus

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Letter of Intent: The Hyper-Kamiokande Experiment --- Detector Design and Physics Potential ---

K. Abe, T. Abe, H. Aihara, Y. Fukuda, Y. Hayato, K. Huang, A. K. Ichikawa, M. Ikeda, K. Inoue, H. Ishino, Y. Itow, T. Kajita, J. Kameda, Y. Kishimoto, M. Koga, Y. Koshio, K. P. Lee, A. Minamino, M. Miura, S. Moriyama, M. Nakahata, K. Nakamura, T. Nakaya, S. Nakayama, K. Nishijima, Y. Nishimura, Y. Obayashi, K. Okumura, M. Sakuda, H. Sekiya, M. Shiozawa, A. T. Suzuki, Y. Suzuki, A. Takeda, Y. Takeuchi, H. K. M. Tanaka, S. Tasaka, T. Tomura, M. R. Vagins, J. Wang, M. Yokoyama

2011年9月

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掲載種別：研究論文（学術雑誌）

We propose the Hyper-Kamiokande (Hyper-K) detector as a next generation<br />
underground water Cherenkov detector. It will serve as a far detector of a long<br />
baseline neutrino oscillation experiment envisioned for the upgraded J-PARC,<br />
and as a detector capable of observing -- far beyond the sensitivity of the<br />
Super-Kamiokande (Super-K) detector -- proton decays, atmospheric neutrinos,<br />
and neutrinos from astronomical origins. The baseline design of Hyper-K is<br />
based on the highly successful Super-K, taking full advantage of a well-proven<br />
technology. (to be continued)

arXiv

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An Indirect Search for WIMPs in the Sun using 3109.6 days of upward-going muons in Super-Kamiokande 査読

Tanaka, T., Abe, K., Hayato, Y., Iida, T., Kameda, J., Koshio, Y., Kouzuma, Y., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Obayashi, Y., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takenaga, Y., Ueno, K., Ueshima, K., Yamada, S., Yokozawa, T., Ishihara, C., Hazama, S., Kaji, H., Kajita, T., Kaneyuki, K., McLachlan, T., Okumura, K., Shimizu, Y., Tanimoto, N., Dufour, F., Kearns, E., Litos, M., Raaf, J.L., Stone, J.L., Sulak, L.R., Cravens, J.P., Bays, K., Kropp, W.R., Mine, S., Regis, C., Smy, M.B., Sobel, H.W., Ganezer, K.S., Hill, J., Keig, W.E., Jang, J.S., Kim, J.Y., Lim, I.T., Albert, J.B., Scholberg, K., Walter, C.W., Wendell, R., Wongjirad, T., Ishizuka, T., Tasaka, S., Learned, J.G., Matsuno, S., Smith, S., Martens, K., Vagins, M., Watanabe, Y., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nishikawa, K., Nishino, H., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A.T., Takeuchi, Y., Ikeda, M., Minamino, A., Nakaya, T., Labarga, L., Fukuda, Y., Itow, Y., Mitsuka, G., Jung, C.K., McGrew, C., Lopez, G., Yanagisawa, C., Tamura, N., Ishino, H., Kibayashi, A., Sakuda, M., Kuno, Y., Yoshida, M., Kim, S.B., Yang, B.S., Okazawa, H., Choi, Y., Nishijima, K., Yokosawa, Y., Koshiba, M., Totsuka, Y., Yokoyama, M., Chen, S., Heng, Y., Yang, Z., Zhang, H., Kielczewska, D., Mijakowski, P., Connolly, K., Dziomba, M., Thrane, E., Wilkes, R.J.

Astrophys.J. 742 ( 78 ) 78 - 78 2011年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1088/0004-637X/742/2/78

Web of Science

arXiv

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Search for Differences in Oscillation Parameters for Atmospheric Neutrinos and Antineutrinos at Super-Kamiokande 査読

Abe, K., Hayato, Y., Iida, T., Ikeda, M., Iyogi, K., Kameda, J., Koshio, Y., Kozuma, Y., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Obayashi, Y., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takenaga, Y., Takeuchi, Y., Ueno, K., Ueshima, K., Watanabe, H., Yamada, S., Yokozawa, T., Ishihara, C., Kaji, H., Lee, K.P., Kajita, T., Kaneyuki, K., McLachlan, T., Okumura, K., Shimizu, Y., Tanimoto, N., Martens, K., Vagins, M.R., Labarga, L., Magro, L.M., Dufour, F., Kearns, E., Litos, M., Raaf, J.L., Stone, J.L., Sulak, L.R., Goldhaber, M., Bays, K., Kropp, W.R., Mine, S., Regis, C., Smy, M.B., Sobel, H.W., Ganezer, K.S., Hill, J., Keig, W.E., Jang, J.S., Kim, J.Y., Lim, I.T., Albert, J.B., Scholberg, K., Walter, C.W., Wendell, R., Wongjirad, T.M., Tasaka, S., Learned, J.G., Matsuno, S., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nishikawa, K., Nishino, H., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A.T., Minamino, A., Nakaya, T., Fukuda, Y., Itow, Y., Mitsuka, G., Tanaka, T., Jung, C.K., Taylor, I., Yanagisawa, C., Ishino, H., Kibayashi, A., Mino, S., Mori, T., Sakuda, M., Toyota, H., Kuno, Y., Kim, S.B., Yang, B.S., Ishizuka, T., Okazawa, H., Choi, Y., Nishijima, K., Koshiba, M., Yokoyama, M., Totsuka, Y., Chen, S., Heng, Y., Yang, Z., Zhang, H., Kielczewska, D., Mijakowski, P., Connolly, K., Dziomba, M., Wilkes, R.J.

Phys.Rev.Lett. 107 ( 241801 ) 241801 - 241801 2011年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevLett.107.241801

Web of Science

arXiv

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Solar neutrino results in Super-Kamiokande-III 査読

Abe, K., Hayato, Y., Iida, T., Ikeda, M., Ishihara, C., Iyogi, K., Kameda, J., Kobayashi, K., Koshio, Y., Kozuma, Y., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Obayashi, Y., Ogawa, H., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takenaga, Y., Ueno, K., Ueshima, K., Watanabe, H., Yamada, S., Yokozawa, T., Hazama, S., Kaji, H., Kajita, T., Kaneyuki, K., McLachlan, T., Okumura, K., Shimizu, Y., Tanimoto, N., Vagins, M.R., Labarga, L., Magro, L.M., Dufour, F., Kearns, E., Litos, M., Raaf, J.L., Stone, J.L., Sulak, L.R., Wang, W., Goldhaber, M., Bays, K., Casper, D., Cravens, J.P., Kropp, W.R., Mine, S., Regis, C., Renshaw, A., Smy, M.B., Sobel, H.W., Ganezer, K.S., Hill, J., Keig, W.E., Jang, J.S., Kim, J.Y., Lim, I.T., Albert, J., Wendell, R., Wongjirad, T., Scholberg, K., Walter, C.W., Ishizuka, T., Tasaka, S., Learned, J.G., Matsuno, S., Watanabe, Y., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nishikawa, K., Nishino, H., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A.T., Takeuchi, Y., Minamino, A., Nakaya, T., Fukuda, Y., Itow, Y., Mitsuka, G., Tanaka, T., Jung, C.K., Lopez, G., McGrew, C., Terri, R., Yanagisawa, C., Tamura, N., Ishino, H., Kibayashi, A., Mino, S., Mori, T., Sakuda, M., Toyota, H., Kuno, Y., Yoshida, M., Kim, S.B., Yang, B.S., Ishizuka, T., Okazawa, H., Choi, Y., Nishijima, K., Yokosawa, Y., Koshiba, M., Totsuka, Y., Yokoyama, M., Chen, S., Heng, Y., Yang, Z., Zhang, H., Kielczewska, D., Mijakowski, P., Connolly, K., Dziomba, M., Thrane, E., Wilkes, R.J.

Phys.Rev.D 83 ( 052010 ) 052010 - 052010 2011年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevD.83.052010

Web of Science

arXiv

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Measurement of CP asymmetries in B0 --> K0pi0 decays 査読

M. Fujikawa, Belle Collaboration

Physical Review D 81 ( 011101(R) ) 1 - 7 2010年1月

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevD.81.011101

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その他リンク： http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevD.81.011101/fulltext
Atmospheric neutrino oscillation analysis with sub-leading effects in Super-Kamiokande I, II, and III 査読

Wendell, R., Ishihara, C., Abe, K., Hayato, Y., Iida, T., Ikeda, M., Iyogi, K., Kameda, J., Kobayashi, K., Koshio, Y., Kozuma, Y., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Obayashi, Y., Ogawa, H., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takenaga, Y., Takeuchi, Y., Ueno, K., Ueshima, K., Watanabe, H., Yamada, S., Yokozawa, T., Hazama, S., Kaji, H., Kajita, T., Kaneyuki, K., McLachlan, T., Okumura, K., Shimizu, Y., Tanimoto, N., Vagins, M.R., Dufour, F., Kearns, E., Litos, M., Raaf, J.L., Stone, J.L., Sulak, L.R., Wang, W., Goldhaber, M., Bays, K., Casper, D., Cravens, J.P., Kropp, W.R., Mine, S., Regis, C., Smy, M.B., Sobel, H.W., Ganezer, K.S., Hill, J., Keig, W.E., Jang, J.S., Kim, J.Y., Lim, I.T., Albert, J., Fechner, M., Scholberg, K., Walter, C.W., Tasaka, S., Learned, J.G., Matsuno, S., Watanabe, Y., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nishikawa, K., Nishino, H., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A.T., Minamino, A., Nakaya, T., Fukuda, Y., Itow, Y., Mitsuka, G., Tanaka, T., Jung, C.K., Lopez, G., McGrew, C., Yanagisawa, C., Tamura, N., Ishino, H., Kibayashi, A., Mino, S., Mori, T., Sakuda, M., Toyota, H., Kuno, Y., Yoshida, M., Kim, S.B., Yang, B.S., Ishizuka, T., Okazawa, H., Choi, Y., Nishijima, K., Yokosawa, Y., Koshiba, M., Yokoyama, M., Totsuka, Y., Chen, S., Heng, Y., Yang, Z., Zhang, H., Kielczewska, D., Mijakowski, P., Connolly, K., Dziomba, M., Thrane, E., Wilkes, R.J.

Phys.Rev.D 81 ( 092004 ) 092004 - 092004 2010年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevD.81.092004

Web of Science

arXiv

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Physics at Super B Factory

T. Aushev, H. Ishino

arXive 1002.5012 1 - 274 2010年

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記述言語：英語

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Evidence of time-dependent CP violation in the decay B-0 -> D*+D*- 査読

K. Vervink, T. Aushev, O. Schneider, K. Arinstein, A. M. Bakich, V. Balagura, E. Barberio, A. Bay, V. Bhardwaj, U. Bitenc, A. Bondar, A. Bozek, M. Bracko, J. Brodzicka, T. E. Browder, Y. Chao, A. Chen, B. G. Cheon, C. -C. Chiang, R. Chistov, I. -S. Cho, Y. Choi, J. Dalseno, M. Danilov, W. Dungel, S. Eidelman, S. Fratina, N. Gabyshev, P. Goldenzweig, B. Golob, H. Ha, T. Hara, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, Y. Hoshi, W. -S. Hou, H. J. Hyun, K. Inami, A. Ishikawa, H. Ishino, Y. Iwasaki, D. H. Kah, J. H. Kang, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, H. O. Kim, Y. I. Kim, Y. J. Kim, K. Kinoshita, B. R. Ko, S. Korpar, P. Krizan, P. Krokovny, A. Kuzmin, Y. -J. Kwon, S. -H. Kyeong, J. S. Lee, M. J. Lee, J. Li, A. Limosani, C. Liu, Y. Liu, D. Liventsev, R. Louvot, A. Matyja, S. McOnie, K. Miyabayashi, H. Miyata, Y. Miyazaki, R. Mizuk, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, K. Nishimura, O. Nitoh, T. Ohshima, S. Okuno, H. Ozaki, P. Pakhlov, G. Pakhlova, C. W. Park, H. Park, H. K. Park, R. Pestotnik, L. E. Piilonen, A. Poluektov, H. Sahoo, Y. Sakai, J. Schuemann, A. J. Schwartz, K. Senyo, M. E. Sevior, M. Shapkin, C. P. Shen, J. -G. Shiu, B. Shwartz, S. Stanic, J. Stypula, T. Sumiyoshi, N. Tamura, Y. Teramoto, K. Trabelsi, T. Tsuboyama, S. Uehara, T. Uglov, Y. Unno, S. Uno, G. Varner, C. C. Wang, C. H. Wang, P. Wang, Y. Watanabe, J. Wicht, E. Won, B. D. Yabsley, Y. Yamashita, Z. P. Zhang, V. Zhilich, V. Zhulanov, T. Zivko, A. Zupanc, N. Zwahlen

PHYSICAL REVIEW D 80 ( 11 ) 1 - 6 2009年12月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report a measurement of the CP-odd fraction and the time-dependent CP violation in B-0 -> D*+D*- decays, using 657x10(6) BB events collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We measure a CP-odd fraction of R-perpendicular to=0.125 +/- 0.043(stat)+/- 0.023(syst). From the distributions of the proper-time intervals between a B-0 -> D*+D*- decay and the other B meson in the event, we obtain evidence of CP violation with measured parameters A(D)(*+)D(*-)=0.15 +/- 0.13(stat)+/- 0.04(syst) and SD*+D*-=-0.96 +/- 0.25(stat)(-0.16)(+0.13)(syst).

DOI： 10.1103/PhysRevD.80.111104

Web of Science

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Dalitz analysis of B -> K pi(+)psi ' decays and the Z(4430)(+) 査読

R. Mizuk, Belle Collaboration, I. Adachi, H. Aihara, K. Arinstein, T. Aushev, A. M. Bakich, V. Balagura, E. Barberio, A. Bay, K. Belous, V. Bhardwaj, A. Bozek, M. Bracko, T. E. Browder, M. -C. Chang, A. Chen, B. G. Cheon, C. -C. Chiang, R. Chistov, I. -S. Cho, S. -K. Choi, Y. Choi, J. Dalseno, M. Danilov, S. Eidelman, N. Gabyshev, P. Goldenzweig, B. Golob, H. Ha, J. Haba, B. -Y. Han, T. Hara, Y. Hasegawa, K. Hayasaka, Y. Hoshi, W. -S. Hou, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, N. J. Joshi, D. H. Kah, J. H. Kang, P. Kapusta, H. Kawai, T. Kawasaki, H. J. Kim, H. O. Kim, J. H. Kim, Y. I. Kim, Y. J. Kim, K. Kinoshita, B. R. Ko, S. Korpar, P. Krizan, P. Krokovny, A. Kuzmin, Y. -J. Kwon, S. -H. Kyeong, J. S. Lange, M. J. Lee, S. E. Lee, T. Lesiak, C. Liu, Y. Liu, D. Liventsev, R. Louvot, D. Marlow, A. Matyja, S. McOnie, K. Miyabayashi, H. Miyata, Y. Miyazaki, T. Mori, E. Nakano, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, O. Nitoh, T. Ohshima, S. Okuno, S. L. Olsen, P. Pakhlov, G. Pakhlova, C. W. Park, H. Park, H. K. Park, R. Pestotnik, L. E. Piilonen, H. Sahoo, K. Sakai, Y. Sakai, O. Schneider, C. Schwanda, A. Sekiya, K. Senyo, M. Shapkin, V. Shebalin, J. -G. Shiu, B. Shwartz, S. Stanic, M. Staric, T. Sumiyoshi, Y. Teramoto, I. Tikhomirov, K. Trabelsi, S. Uehara, T. Uglov, Y. Unno, P. Urquijo, G. Varner, K. E. Varvell, K. Vervink, C. H. Wang, M. -Z. Wang, P. Wang, X. L. Wang, Y. Watanabe, R. Wedd, E. Won, B. D. Yabsley, Y. Yamashita, C. Z. Yuan, C. C. Zhang, Z. P. Zhang, V. Zhulanov, T. Zivko, A. Zupanc, O. Zyukova

PHYSICAL REVIEW D 80 ( 3 ) 1 - 7 2009年8月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

DOI： 10.1103/PhysRevD.80.031104

Web of Science

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Search for Proton Decay via p → e+π0 and p → μ+π0 in a Large Water Cherenkov Detector

H. Nishino, S. Clark, K. Abe, Y. Hayato, T. Iida, M. Ikeda, J. Kameda, K. Kobayashi, Y. Koshio, M. Miura, S. Moriyama, M. Nakahata, S. Nakayama, Y. Obayashi, H. Ogawa, H. Sekiya, M. Shiozawa, Y. Suzuki, A. Takeda, Y. Takenaga, Y. Takeuchi, K. Ueno, K. Ueshima, H. Watanabe, S. Yamada, S. Hazama, I. Higuchi, C. Ishihara, T. Kajita, K. Kaneyuki, G. Mitsuka, K. Okumura, N. Tanimoto, M. R. Vagins, F. Dufour, E. Kearns, M. Litos, J. L. Raaf, J. L. Stone, L. R. Sulak, W. Wang, M. Goldhaber, S. Dazeley, R. Svoboda, K. Bays, D. Casper, J. P. Cravens, W. R. Kropp, S. Mine, C. Regis, M. B. Smy, H. W. Sobel, K. S. Ganezer, J. Hill, W. E. Keig, J. S. Jang, J. Y. Kim, I. T. Lim, M. Fechner, K. Scholberg, C. W. Walter, R. Wendell, S. Tasaka, J. G. Learned, S. Matsuno, Y. Watanabe, T. Hasegawa, T. Ishida, T. Ishii, T. Kobayashi, T. Nakadaira, K. Nakamura, K. Nishikawa, Y. Oyama, K. Sakashita, T. Sekiguchi, T. Tsukamoto, A. T. Suzuki, A. Minamino, T. Nakaya, M. Yokoyama, Y. Fukuda, Y. Itow, T. Tanaka, C. K. Jung, G. Lopez, C. McGrew, R. Terri, C. Yanagisawa, N. Tamura, Y. Idehara, M. Sakuda, Y. Kuno, M. Yoshida, S. B. Kim, B. S. Yang, T. Ishizuka, H. Okazawa, Y. Choi, H. K. Seo, Y. Furuse, K. Nishijima, Y. Yokosawa, M. Koshiba, Y. Totsuka, S. Chen, Y. Heng, Z. Yang, H. Zhang, D. Kielczewska, E. Thrane, R. J. Wilkes

102 ( 14 ) 2009年4月

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掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PHYSREVLETT.102.141801

Web of Science

arXiv

J-GLOBAL

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その他リンク： http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevLett.102.141801/fulltext
Measurement of the e(+)e(-)-> J/psi c<overline>c</overline> cross section at <radical><radicand>s</radicand></radical>approximate to 10.6 GeV 査読

P. Pakhlov, H. Aihara, K. Arinstein, T. Aushev, A. M. Bakich, V. Balagura, E. Barberio, A. Bay, K. Belous, V. Bhardwaj, A. Bondar, M. Bracko, J. Brodzicka, T. E. Browder, M. -C. Chang, P. Chang, A. Chen, B. G. Cheon, R. Chistov, S. -K. Choi, Y. Choi, M. Danilov, M. Dash, A. Drutskoy, W. Dungel, S. Eidelman, D. Epifanov, N. Gabyshev, P. Goldenzweig, B. Golob, H. Ha, B. -Y. Han, K. Hayasaka, H. Hayashii, M. Hazumi, Y. Horii, Y. Hoshi, W. -S. Hou, Y. B. Hsiung, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, Y. Iwasaki, N. J. Joshi, D. H. Kah, H. Kaji, H. Kawai, T. Kawasai, H. Kichimi, H. O. Kim, Y. I. Kim, K. Kinoshita, B. R. Ko, S. Korpar, P. Krizan, P. Krokovny, A. Kuzmin, Y. -J. Kwon, S. -H. Kyeong, J. S. Lange, M. J. Lee, S. E. Lee, T. Lesiak, S. -W. Lin, Y. Liu, D. Liventsev, R. Louvot, F. Mandl, A. Matyja, S. McOnie, H. Miyata, Y. Miyazaki, R. Mizuk, Y. Nagasaka, M. Nakao, H. Nakazawa, K. Nishimura, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, H. Ozaki, G. Pakhlova, H. Palka, C. W. Park, H. Park, H. K. Park, K. S. Park, R. Pestotnik, L. E. Piilonen, A. Poluektov, H. Sahoo, Y. Sakai, O. Schneider, C. Schwanda, K. Senyo, M. E. Sevior, M. Shapkin, C. P. Shen, J. -G. Shiu, B. Shwartz, J. B. Singh, A. Sokolov, S. Stanic, M. Staric, T. Sumiyoshi, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, K. Trabelsi, T. Tsuboyama, S. Uehara, T. Uglov, Y. Unno, S. Uno, Y. Usov, G. Varner, K. Vervink, A. Vinokurova, C. H. Wang, P. Wang, Y. Watanabe, R. Wedd, E. Won, B. D. Yabsley, Y. Yamashita, C. C. Zhang, Z. P. Zhang, V. Zhilich, V. Zhulanov, T. Zivko, A. Zupanc, O. Zyukova

PHYSICAL REVIEW D 79 ( 7 ) 1 - 7 2009年4月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We present a new measurement of the e(+)e(-)-> J/psi c(c)over bar cross section where the c(c)over bar pair can fragment either into charmed hadrons or a charmonium state. In the former case the J/psi and a charmed hadron are reconstructed, while the latter process is measured using the recoil mass technique, which allows the identification of two-body final states without reconstruction of one of the charmonia. The measured e(+)e(-)-> J/psi c(c)over bar cross section is (0.74 +/- 0.08(-0.08)(+0.09)) pb, and the e(+)e(-)-> J/psi Xnon-c(c)over bar cross section is (0.43 +/- 0.09 +/- 0.09) pb. We note that the measured cross sections are obtained from a data sample with the multiplicity of charged tracks in the event larger than 4; corrections for the effect of this requirement are not performed as this cannot be done in a model-independent way. The analysis is based on a data sample with an integrated luminosity of 673 fb(-1) recorded near the Upsilon(4S) resonance with the Belle detector at the KEKB e(+)e(-) asymmetric-energy collider.

DOI： 10.1103/PhysRevD.79.071101

Web of Science

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Time-dependent Dalitz plot measurement of CP parameters in B-0 -> K-S(0)pi(+)pi(-) decays 査読

J. Dalseno, I. Adachi, H. Aihara, K. Arinstein, T. Aushev, A. M. Bakich, V. Balagura, A. Bay, V. Bhardwaj, U. Bitenc, A. Bondar, A. Bozek, M. Bracko, T. E. Browder, Y. Chao, A. Chen, B. G. Cheon, I. -S. Cho, Y. Choi, M. Dash, A. Drutskoy, S. Eidelman, M. Fujikawa, N. Gabyshev, P. Goldenzweig, B. Golob, H. Ha, B. -Y. Han, K. Hara, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, Y. Horii, Y. Hoshi, W. -S. Hou, H. J. Hyun, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, D. H. Kah, J. H. Kang, N. Katayama, H. Kawai, T. Kawasaki, H. O. Kim, Y. I. Kim, Y. J. Kim, K. Kinoshita, B. R. Ko, P. Krizan, P. Krokovny, A. Kuzmin, Y. -J. Kwon, S. -H. Kyeong, J. S. Lee, S. E. Lee, J. Li, S. -W. Lin, C. Liu, R. Louvot, A. Matyja, S. McOnie, K. Miyabayashi, H. Miyata, Y. Miyazaki, R. Mizuk, Y. Nagasaka, Y. Nakahama, E. Nakano, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, O. Nitoh, S. Ogawa, S. Okuno, H. Ozaki, P. Pakhlov, G. Pakhlova, C. W. Park, H. K. Park, K. S. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, M. Rozanska, H. Sahoo, Y. Sakai, O. Schneider, C. Schwanda, A. J. Schwartz, A. Sekiya, K. Senyo, M. E. Sevior, M. Shapkin, J. -G. Shiu, B. Shwartz, J. B. Singh, A. Sokolov, S. Stanic, M. Staric, K. Sumisawa, T. Sumiyoshi, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, K. Trabelsi, S. Uehara, T. Uglov, Y. Unno, S. Uno, Y. Usov, G. Varner, K. Vervink, C. H. Wang, P. Wang, X. L. Wang, Y. Watanabe, E. Won, B. D. Yabsley, Y. Yamashita, Z. P. Zhang, V. Zhulanov, T. Zivko, A. Zupanc, O. Zyukova

PHYSICAL REVIEW D 79 ( 7 ) 1 - 17 2009年4月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We present a time-dependent Dalitz plot measurement of CP violation parameters in B-0 -> K-S(0)pi(+)pi(-) decays. These results are obtained from a large data sample that contains 657x10(6) B(B)over bar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. For the CP violation parameters, we obtain two consistent solutions that describe the data well. The first of these solutions may be preferred by external information from other measurements. There is no evidence for direct CP violation in B-0 ->rho(0)(770)K-S(0), B-0 -> f(0)(980)K-S(0) and B-0 -> K*+(892)pi(-), while measurements of mixing-induced CP violation in B-0 ->rho(0)(770)K-S(0) and B-0 -> f(0)(980)K-S(0) decays are consistent with that of b -> c(c)over bars decays. We also measured the phase difference between B-0 -> K*+(892)pi(-) and (B)over bar(0)-> K*-(892)pi(+), which may be used to extract phi(3).

DOI： 10.1103/PhysRevD.79.072004

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Measurement of the branching fraction for the decay Gamma(4S) -> Gamma(1S)pi(+) pi(-) 査読

A. Sokolov, M. Shapkin, H. Aihara, K. Arinstein, T. Aushev, A. M. Bakich, E. Barberio, A. Bay, K. Belous, V. Bhardwaj, A. Bondar, M. Bracko, T. E. Browder, M. -C. Chang, P. Chang, A. Chen, K. -F. Chen, B. G. Cheon, C. -C. Chiang, R. Chistov, I. -S. Cho, Y. Choi, M. Dash, A. Drutskoy, W. Dungel, S. Eidelman, D. Epifanov, N. Gabyshev, P. Goldenzweig, H. Ha, J. Haba, B. -Y. Han, H. Hayashii, M. Hazumi, Y. Horii, Y. Hoshi, W. -S. Hou, Y. B. Hsiung, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, Y. Iwasaki, N. J. Joshi, D. H. Kah, H. Kaji, J. H. Kang, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, H. O. Kim, S. K. Kim, Y. I. Kim, Y. J. Kim, K. Kinoshita, B. R. Ko, S. Korpar, P. Krizan, P. Krokovny, A. Kuzmin, Y. -J. Kwon, S. -H. Kyeong, J. S. Lange, M. J. Lee, S. E. Lee, T. Lesiak, J. Li, A. Limosani, S. -W. Lin, Y. Liu, D. Liventsev, R. Louvot, F. Mandl, A. Matyja, S. McOnie, H. Miyata, Y. Miyazaki, R. Mizuk, T. Mori, Y. Nagasaka, E. Nakano, M. Nakao, S. Nishida, O. Nitoh, S. Noguchi, S. Ogawa, T. Ohshima, S. Okuno, H. Ozaki, P. Pakhlov, G. Pakhlova, C. W. Park, H. Park, H. K. Park, K. S. Park, R. Pestotnik, L. E. Piilonen, A. Poluektov, H. Sahoo, Y. Sakai, O. Schneider, C. Schwanda, A. Sekiya, K. Senyo, M. E. Sevior, C. P. Shen, J. -G. Shiu, B. Shwartz, J. B. Singh, S. Stanic, M. Staric, T. Sumiyoshi, M. Tanaka, G. N. Taylor, Y. Teramoto, T. Tsuboyama, S. Uehara, T. Uglov, Y. Unno, S. Uno, Y. Usov, G. Varner, K. E. Varvell, K. Vervink, A. Vinokurova, C. H. Wang, M. -Z. Wang, P. Wang, X. L. Wang, Y. Watanabe, R. Wedd, E. Won, B. D. Yabsley, Y. Yamashita, C. Z. Yuan, Z. P. Zhang, V. Zhilich, V. Zhulanov, T. Zivko, A. Zupanc, O. Zyukova

PHYSICAL REVIEW D 79 ( 5 ) 1 - 5 2009年3月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We study transitions between Gamma states with the emission of charged pions using 604.6 fb(-1) of data collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The measured product branching fraction is B(Gamma(4S) -> Gamma(1S)pi(+)pi(-)) x B(Gamma(1S) -> mu(+)mu(-)) = (2.11 +/- 0.30(stat) +/- 0.14(sys)) x 10(-6) and the partial decay width is Gamma(Gamma(4S) -> Gamma(1S)pi(+)pi(-)) = 1.75 +/- 0.25(stat) +/- 0.24(sys)) keV.

DOI： 10.1103/PhysRevD.79.051103

Web of Science

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Study of Omega(0)(c) and Omega(c)*(0) baryons at Belle 査読

E. Solovieva, R. Chistov, I. Adachi, H. Aihara, K. Arinstein, T. Aushev, A. M. Bakich, V. Balagura, U. Bitenc, A. Bondar, M. Bracko, J. Brodzicka, T. E. Browder, P. Chang, A. Chen, B. G. Cheon, I. -S. Cho, S. -K. Choi, Y. Choi, J. Dalseno, M. Danilov, M. Dash, S. Eidelman, H. Ha, K. Hayasaka, M. Hazumi, D. Heffernan, Y. Hoshi, W. -S. Hou, Y. B. Hsiung, H. J. Hyun, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, D. H. Kah, J. H. Kang, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, H. O. Kim, Y. I. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kumar, A. Kuzmin, Y. -J. Kwon, S. -H. Kyeong, J. S. Lange, J. S. Lee, M. J. Lee, S. E. Lee, T. Lesiak, C. Liu, D. Liventsev, A. Matyja, S. McOnie, K. Miyabayashi, H. Miyata, Y. Miyazaki, R. Mizuk, Y. Nagasaka, M. Nakao, S. Nishidai, O. Nitoh, S. Noguchi, S. Ogawa, T. Ohshima, S. Okuno, P. Pakhlov, G. Pakhlova, H. Palka, H. K. Park, L. S. Peak, L. E. Piilonen, H. Sahoo, Y. Sakai, O. Schneider, C. Schwanda, K. Senyo, M. E. Sevior, M. Shapkin, J. -G. Shiu, S. Stanic, M. Staric, T. Sumiyoshi, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, S. Uehara, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, C. H. Wang, P. Wang, X. L. Wang, Y. Watanabe, E. Won, B. D. Yabsley, Y. Yamashita, M. Yamauchi, Z. P. Zhang, V. Zhulanov, T. Zivko, A. Zupanc, O. Zyukova

PHYSICS LETTERS B 672 ( 1 ) 1 - 5 2009年2月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

We report results from a study of the charmed double strange baryons Omega(0)(c) and Omega(c)*(0) at Belle. The Omega(0)(c) is reconstructed using the Omega(0)(c) -> Omega(-)pi(+) decay mode, and its mass is measured to be (2693.6 +/- 0.3(-1.5)(+1.8)) MeV/c(2). The Omega(c)*(0) baryon is reconstructed in the Omega(0)(c)gamma mode. The mass difference M-Omega c*0 - M-Omega c0 is measured to be (70.7 +/- 0.9(-0.9)(+0.1)) MeV/c(2). The analysis is performed using 673 fb(-1) of data on and near the gamma(4S) collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. (C) 2008 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.physletb.2008.12.062

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Measurement of the Decay B-s(0) -> D-s(-)pi(+) and Evidence for B-s(0) -> (DsK +/-)-K--/+ in e(+) e(-) Annihilation at root s approximate to 10.87 GeV 査読

R. Louvot, J. Wicht, O. Schneider, I. Adachi, H. Aihara, K. Arinstein, V. Aulchenko, T. Aushev, A. M. Bakich, V. Balagura, A. Bay, V. Bhardwaj, U. Bitenc, A. Bondar, A. Bozek, M. Bracko, T. E. Browder, A. Chen, B. G. Cheon, R. Chistov, I. -S. Cho, Y. Choi, J. Dalseno, M. Danilov, M. Dash, A. Drutskoy, W. Dungel, S. Eidelman, N. Gabyshev, P. Goldenzweig, B. Golob, H. Ha, J. Haba, K. Hayasaka, H. Hayashii, M. Hazumi, Y. Hoshi, W. -S. Hou, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, N. J. Joshi, D. H. Kah, J. H. Kang, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, S. K. Kim, Y. I. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kumar, A. Kuzmin, Y. -J. Kwon, S. -H. Kyeong, J. S. Lange, J. S. Lee, M. J. Lee, S. E. Lee, T. Lesiak, J. Li, A. Limosani, S. -W. Lin, D. Liventsev, F. Mandl, A. Matyja, S. McOnie, T. Medvedeva, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, T. Mori, E. Nakano, M. Nakao, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, H. Ozaki, G. Pakhlova, C. W. Park, H. K. Park, R. Pestotnik, L. E. Piilonen, H. Sahoo, Y. Sakai, J. Schumann, A. J. Schwartz, A. Sekiya, K. Senyo, M. E. Sevior, M. Shapkin, J. -G. Shiu, J. B. Singh, A. Somov, S. Stanic, M. Staric, K. Sumisawa, T. Sumiyoshi, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, K. Trabelsi, S. Uehara, T. Uglov, Y. Unno, S. Uno, Y. Usov, G. Varner, K. Vervink, C. C. Wang, C. H. Wang, P. Wang, X. L. Wang, Y. Watanabe, R. Wedd, E. Won, B. D. Yabsley, Y. Yamashita, M. Yamauchi, Z. P. Zhang, V. Zhilich, V. Zhulanov, T. Zivko, A. Zupanc, N. Zwahlen, O. Zyukova

PHYSICAL REVIEW LETTERS 102 ( 2 ) 1 - 6 2009年1月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We have studied B-s(0) -> D-s(-)pi(+) and B-s(0) -> (DsK +/-)-K--/+ decays using 23.6 fb(-1) of data collected at the Y(5S) resonance with the Belle detector at the KEKB e(+) e(-) collider. This highly pure B-s(0) -> D-s(-)pi(+) sample is used to measure the branching fraction, B(B-s(0) -> D-s(-)pi(+)) = [3.67(-0.33)(+0.35)(stat)(-0.42)(+0.43)(syst) +/- 0.49(f(s))] x 10(-3) (f(s) = N-Bs(*)(B) over bars(*)/N-b (b) over bar and the fractions of B-s(0) event types at the Y(d5S) energy, in particular N-Bs(*)(B) over bars(*)/N-Bs(*)(B) over bars(*) = (90.1(-4.0)(+3.8) +/- 0.2)%. We also determine the masses M(B-s(0)) = (5364.4 +/- 1.3 +/- 0.7) MeV/c(2) and M(B-s*) = (5416.4 +/- 0.4 +/- 0.5) MeV/c(2). In addition, we observe B-s(0) -> (DsK +/-)-K--/+ decays with a significance of 3.5 sigma and measure B(B-s(0) -> (DsK +/-)-K--/+) = [2.4-1.0+1.2(stat) +/- 0.3(syst) +/- 0.3(f(s))] x 10(-4).

DOI： 10.1103/PhysRevLett.102.021801

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Search for Astrophysical Neutrino Point Sources at Super-Kamiokande 査読

Thrane, E., Abe, K., Hayato, Y., Iida, T., Ikeda, M., Kameda, J., Kobayashi, K., Koshio, Y., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Obayashi, Y., Ogawa, H., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takenaga, Y., Takeuchi, Y., Ueno, K., Ueshima, K., Watanabe, H., Yamada, S., Vagins, M.R., Hazama, S., Higuchi, I., Ishihara, C., Kajita, T., Kaneyuki, K., Mitsuka, G., Nishino, H., Okumura, K., Tanimoto, N., Dufour, F., Kearns, E., Litos, M., Raaf, J.L., Stone, J.L., Sulak, L.R., Goldhaber, M., Bays, K., Casper, D., Cravens, J.P., Kropp, W.R., Mine, S., Regis, C., Smy, M.B., Sobel, H.W., Ganezer, K.S., Hill, J., Keig, W.E., Jang, J.S., Jeong, I.S., Kim, J.Y., Lim, I.T., Fechner, M., Scholberg, K., Walter, C.W., Wendell, R., Tasaka, S., Learned, J.G., Matsuno, S., Watanabe, Y., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nishikawa, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A.T., Ichikawa, A.K., Minamino, A., Nakaya, T., Yokoyama, M., Dazeley, S., Svoboda, R., Habig, A., Fukuda, Y., Itow, Y., Tanaka, T., Jung, C.K., Lopez, G., McGrew, C., Yanagisawa, C., Tamura, N., Idehara, Y., Ishino, H., Kibayashi, A., Sakuda, M., Kuno, Y., Yoshida, M., Kim, S.B., Yang, B.S., Ishizuka, T., Okazawa, H., Choi, Y., Seo, H.K., Furuse, Y., Nishijima, K., Yokosawa, Y., Koshiba, M., Totsuka, Y., Chen, S., Gong, G., Heng, Y., Xue, T., Yang, Z., Zhang, H., Kielczewska, D., Mijakowski, P., Connolly, K., Dziomba, M., Wilkes, R.J.

Astrophys.J. 704 ( 1 ) 503 - 512 2009年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1088/0004-637X/704/1/503

Web of Science

arXiv

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Search for Neutrinos from GRB 080319B at Super-Kamiokande 査読

Thrane, E., Abe, K., Hayato, Y., Iida, T., Ikeda, M., Kameda, J., Kobayashi, K., Koshio, Y., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Obayashi, Y., Ogawa, H., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takenaga, Y., Takeuchi, Y., Ueno, K., Ueshima, K., Watanabe, H., Yamada, S., Vagins, M.R., Hazama, S., Higuchi, I., Ishihara, C., Kajita, T., Kaneyuki, K., Mitsuka, G., Nishino, H., Okumura, K., Tanimoto, N., Dufour, F., Kearns, E., Litos, M., Raaf, J.L., Stone, J.L., Sulak, L.R., Goldhaber, M., Bays, K., Casper, D., Cravens, J.P., Kropp, W.R., Mine, S., Regis, C., Smy, M.B., Sobel, H.W., Ganezer, K.S., Hill, J., Keig, W.E., Jang, J.S., Jeong, I.S., Kim, J.Y., Lim, I.T., Fechner, M., Scholberg, K., Walter, C.W., Wendell, R., Tasaka, S., Learned, J.G., Matsuno, S., Watanabe, Y., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nishikawa, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A.T., Ichikawa, A.K., Minamino, A., Nakaya, T., Yokoyama, M., Dazeley, S., Svoboda, R., Habig, A., Fukuda, Y., Itow, Y., Tanaka, T., Jung, C.K., Lopez, G., McGrew, C., Yanagisawa, C., Tamura, N., Idehara, Y., Ishino, H., Kibayashi, A., Sakuda, M., Kuno, Y., Yoshida, M., Kim, S.B., Yang, B.S., Ishizuka, T., Okazawa, H., Choi, Y., Seo, H.K., Furuse, Y., Nishijima, K., Yokosawa, Y., Koshiba, M., Totsuka, Y., Chen, S., Gong, G., Heng, Y., Xue, T., Yang, Z., Zhang, H., Kielczewska, D., Mijakowski, P., Berns, H.G., Connolly, K., Dziomba, M., Wilkes, R.J.

Astrophys.J. 697 ( 1 ) 730 - 734 2009年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1088/0004-637X/697/1/730

arXiv

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First Study of Neutron Tagging with a Water Cherenkov Detector 査読

Watanabe, H., Zhang, H., Abe, K., Hayato, Y., Iida, T., Ikeda, M., Kameda, J., Kobayashi, K., Koshio, Y., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Obayashi, Y., Ogawa, H., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takenaga, Y., Takeuchi, Y., Ueno, K., Ueshima, K., Yamada, S., Hazama, S., Higuchi, I., Ishihara, C., Kajita, T., Kaneyuki, K., Mitsuka, G., Nishino, H., Okumura, K., Tanimoto, N., Clark, S., Desai, S., Dufour, F., Kearns, E., Likhoded, S., Litos, M., Raaf, J., Stone, J.L., Sulak, L.R., Wang, W., Goldhaber, M., Bays, K., Casper, D., Cravens, J.P., Dunmore, J., Griskevich, J., Kropp, W.R., Liu, D.W., Mine, S., Regis, C., Smy, M.B., Sobel, H.W., Ganezer, K.S., Hill, J., Keig, W.E., Jang, J.S., Jeong, I.S., Kim, J.Y., Lim, I.T., Fechner, M., Scholberg, K., Walter, C.W., Wendel, R., Tasaka, S., Guillian, G., Learned, J.G., Matsuno, S., Messier, M.D., Watanabe, Y., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nishikawa, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A.T., Ichikawa, A.K., Minamino, A., Nakaya, T., Yokoyama, M., Haines, T.J., Dazeley, S., Svoboda, R., Gran, R., Habig, A., Fukuda, Y., Itow, Y., Tanaka, T., Jung, C.K., McGrew, C., Sarrat, A., Terri, R., Yanagisawa, C., Tamura, N., Idehara, Y., Ishino, H., Kibayashi, A., Sakuda, M., Kuno, Y., Yoshida, M., Kim, S.B., Yang, B.S., Ishizuka, T., Okazawa, H., Choi, Y., Seo, H.K., Furuse, Y., Nishijima, K., Yokosawa, Y., Koshiba, M., Totsuka, Y., Vagins, M.R., Chen, S., Deng, Z., Gong, G., Liu, Y., Xue, T., Kielczewska, D., Berns, H.G., Shiraishi, K.K., Thrane, E., Wilkes, R.J.

Astropart.Phys. 31 ( 4 ) 320 - 328 2009年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1016/j.astropartphys.2009.03.002

arXiv

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Search for a CP asymmetry in Cabibbo-suppressed D-0 decays 査読

M. Staric, I. Adachi, H. Aihara, K. Arinstein, T. Aushev, A. M. Bakich, E. Barberio, A. Bay, I. Bedny, K. Belous, V. Bhardwaj, U. Bitenc, A. Bondar, A. Bozek, M. Bracko, J. Brodzicka, T. E. Browder, P. Chang, Y. Chao, A. Chen, K. -F. Chen, B. G. Cheon, R. Chistov, I-S. Chou, Y. Choi, J. Dalseno, M. Dash, W. Dungel, S. Eidelman, S. Fratina, N. Gabyshev, B. Golob, H. Ha, J. Haba, T. Hara, Y. Hasegawa, K. Hayasaka, H. Hayashii, M. Hazurmi, D. Heffernan, Y. Hoshi, W. -S. Hou, H. J. Hyun, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, D. H. Kah, H. Kaji, T. Kawasaki, H. Kichimi, H. J. Kim, H. O. Kim, S. K. Kim, Y. I. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kumar, A. Kuzmin, Y. -J. Kwon, S. -H Kyeong, J. S. Lange, M. J. Lee, S. E. Lee, T. Lesiak, A. Limosani, C. Liu, Y. Liu, D. Liventsev, F. Mandl, A. Matyja, S. McOnie, K. Miyabayashi, H. Miyata, Y. Miyazaki, G. R. Moloney, T. Mori, T. Nagamine, Y. Nagasaka, E. Nakano, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, O. Nitoh, T. Nozaki, T. Ohshima, S. Okuno, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Palka, C. W. Park, H. Park, H. K. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, A. Poluektov, H. Sahoo, Y. Sakai, O. Schneider, J. Schuemann, C. Schwanda, A. J. Schwartz, A. Sekiya, K. Senyo, M. E. Sevior, M. Shapkin, J. -G. Shiu, B. Shwartz, J. B. Singh, A. Sokolov, A. Somov, S. Stanic, T. Sumiyoshi, F. Takasaki, M. Tanaka, G. N. Taylor, Y. Teramoto, K. Trabelsi, T. Tsuboyama, S. Uehara, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, K. Vervink, C. H. Wang, P. Wang, X. L. Wang, Y. Watanabe, E. Won, B. D. Yabsley, Y. Yamashita, C. Z. Yuan, C. C. Zhang, Z. P. Zhang, V. Zhilich, T. Zivko, A. Zupanc, O. Zyukova

PHYSICS LETTERS B 670 ( 3 ) 190 - 195 2008年12月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

We measure the CP-violating asymmetries in decays to the D-0 -> K+K- and D-0 -> pi(+)pi(-) CP eigenstates using 540 fb(-1) of data collected with the Belle detector at or near the gamma (4S) resonance. Cabibbo-favored D-0 -> K-pi(+) decays are used to correct for systematic detector effects. The results, A(CP)(KK) = (-0.43 +/- 0.30 +/- 0.11)% and A(CP)(pi pi) = (+0.43 +/- 0.52 +/-.12)%, are consistent with no CP violation. (c) 2008 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.physletb.2008.10.052

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Measurement of B-0 -> pi(+)pi(-)pi(+)pi(-) decays and search for B-0 -> rho(0)rho(0) 査読

C. -C. Chiang, I. Adachi, H. Aihara, K. Arinstein, V. Aulchenko, T. Aushev, A. M. Bakich, I. Bedny, V. Bhardwaj, U. Bitenc, A. Bozek, M. Bracko, T. E. Browder, P. Chang, Y. Chao, A. Chen, B. G. Cheon, R. Chistov, I. -S. Cho, S. -K. Choi, Y. Choi, J. Dalseno, M. Dash, W. Dungel, S. Eidelman, N. Gabyshev, P. Goldenzweig, B. Golob, H. Ha, J. Haba, T. Hara, K. Hayasaka, M. Hazumi, D. Heffernan, Y. Hoshi, W. -S. Hou, Y. B. Hsiung, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, D. H. Kah, J. H. Kang, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, H. O. Kim, S. K. Kim, Y. I. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kumar, Y. -J. Kwon, S. -H. Kyeong, J. S. Lange, J. S. Lee, S. E. Lee, J. Li, A. Limosani, S. -W. Lin, C. Liu, D. Liventsev, F. Mandl, A. Matyja, S. McOnie, H. Miyata, R. Mizuk, T. Mori, E. Nakano, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, W. Ostrowicz, H. Ozaki, P. Pakhlov, G. Pakhlova, C. W. Park, H. Park, H. K. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, H. Sahoo, Y. Sakai, O. Schneider, J. Schumann, C. Schwanda, A. J. Schwartz, K. Senyo, M. E. Sevior, M. Shapkin, C. P. Shen, J. -G. Shiu, B. Shwartz, J. B. Singh, A. Somov, S. Stanic, M. Staric, T. Sumiyoshi, N. Tamura, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, K. Trabelsi, S. Uehara, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, K. E. Varvell, K. Vervink, A. Vinokurova, C. C. Wang, C. H. Wang, M. -Z. Wang, P. Wang, X. L. Wang, M. Watanabe, Y. Watanabe, R. Wedd, J. Wicht, E. Won, B. D. Yabsley, Y. Yamashita, M. Yamauchi, Z. P. Zhang, V. Zhilich, V. Zhulanov, T. Zivko, A. Zupanc, O. Zyukova

PHYSICAL REVIEW D 78 ( 11 ) 1 - 7 2008年12月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report on a search for the decay B-0 -> rho(0)rho(0) and other charmless modes with a pi(+)pi(-)pi(+)pi(-) final state, including B-0 -> rho(0)pi(+)pi(-), nonresonant B-0 -> 4 pi(+/-), B-0 -> rho(0)f(0)(980), B-0 -> f(0)( 980)f(0)(980) and B-0 -> f(0)(980)pi(+)pi(-). These results are obtained from a data sample containing 657 X 10(6) B (B) over bar collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We set an upper limit on B(B-0 -> rho(0)rho(0)) of 1.0 X 10(-6) at the 90% confidence level (C. L.). From our B-0 -> rho(0)rho(0) measurement and an isospin analysis, we determine the Cabibbo-Kobayashi-Maskawa phase phi(2) to be 91.7 +/- 14.9 degrees. We find excesses in B-0 -> rho(0)pi(+)pi(-) and nonresonant B-0 -> 4 pi(+/-) with 1.3 sigma and 2.5 sigma significance, respectively. The corresponding branching fractions are less than 12.0 X 10(-6) and 19.3 X 10(-6) at the 90% C.L. In addition, we set 90% C.L. upper limits as follows: B(B-0 -> rho(0)f(0)(980)) < 0.3 X 10(-6), B(B-0 -> f(0)(980)f(0)(980)) < 0.1 X 10(-6), and B(B-0 -> f(0)(980)pi(+)pi(-)) < 3.8 X 10(-6).

DOI： 10.1103/PhysRevD.78.111102

Web of Science

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Evidence for Neutral B Meson Decays to omega K*(0) 査読

P. Goldenzweig, A. J. Schwartz, I. Adachi, H. Aihara, K. Arinstein, V. Aulchenko, T. Aushev, S. Bahinipati, A. M. Bakich, A. Bay, I. Bedny, V. Bhardwaj, U. Bitenc, A. Bondar, A. Bozek, M. Bracko, T. E. Browder, P. Chang, Y. Chao, A. Chen, K. -F. Chen, B. G. Cheon, C. -C. Chiang, R. Chistov, I. -S. Cho, Y. Choi, J. Dalseno, M. Dash, A. Drutskoy, S. Eidelman, B. Golob, H. Ha, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, Y. Hoshi, W. -S. Hou, Y. B. Hsiung, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, M. Iwasaki, D. H. Kah, J. H. Kang, T. Kawasaki, H. Kichimi, H. J. Kim, S. K. Kim, Y. I. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kumar, A. Kuzmin, Y. -J. Kwon, S. -H. Kyeong, J. S. Lange, J. S. Lee, M. J. Lee, S. E. Lee, T. Lesiak, J. Li, A. Limosani, S. -W. Lin, C. Liu, Y. Liu, J. MacNaughton, F. Mandl, S. McOnie, K. Miyabayashi, H. Miyata, Y. Miyazaki, R. Mizuk, T. Nagamine, E. Nakano, M. Nakao, H. Nakazawa, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, W. Ostrowicz, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Palka, C. W. Park, H. Park, H. K. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, H. Sahoo, Y. Sakai, O. Schneider, J. Schuemann, C. Schwanda, R. Seidl, A. Sekiya, K. Senyo, M. E. Sevior, M. Shapkin, V. Shebalin, C. P. Shen, J. -G. Shiu, J. B. Singh, A. Somov, S. Stanic, M. Staric, K. Sumisawa, T. Sumiyoshi, S. Suzuki, N. Tamura, M. Tanaka, Y. Teramoto, I. Tikhomirov, K. Trabelsi, S. Uehara, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, K. E. Varvell, K. Vervink, C. C. Wang, C. H. Wang, M. -Z. Wang, P. Wang, X. L. Wang, Y. Watanabe, R. Wedd, J. Wicht, E. Won, B. D. Yabsley, Y. Yamashita, M. Yamauchi, C. C. Zhang, Z. P. Zhang, V. Zhulanov, T. Zivko, A. Zupanc, O. Zyukova, Belle Collaboration

PHYSICAL REVIEW LETTERS 101 ( 23 ) 1 - 6 2008年12月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We present the results of a study of the charmless vector-vector decay B-0 -> omega K*(0) with 657 X 10(6) B (B) over bar pairs collected with the Belle detector at the KEKB e(+)e(-) collider. We measure the branching fraction to be B(B-0 -> omega K*(0)) = [1.8 +/- 0.7(stat) +/- 0.3(syst)] X 10(-6) with 3.0 sigma significance. We also perform a helicity analysis of the omega and K*(0) vector mesons, and obtain the longitudinal polarization fraction f(L)(B-0 -> omega K*(0)) = 0.56 +/- 0.29(stat)(-0.08)(+0.18)(syst). Finally, we measure a large nonresonant branching fraction B[B-0 -> omega K+ pi(-); M-K pi is an element of (0.755, 1.250) GeV/c(2)] = [5.1 +/- 0.7(stat) +/- 0.7(syst)] X 10(-6) with a significance of 9.5 sigma.

DOI： 10.1103/PhysRevLett.101.231801

Web of Science

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Evidence for B-0 -> chi(c1)pi(0) at Belle 査読

R. Kumar, J. B. Singh, I. Adachi, H. Aihara, K. Arinstein, T. Aushev, T. Aziz, A. M. Bakich, V. Balagura, A. Bay, V. Bhardwaj, U. Bitenc, A. Bozek, M. Bracko, T. E. Browder, A. Chen, B. G. Cheon, R. Chistov, I. -S. Cho, Y. Choi, J. Dalseno, M. Dash, A. Drutskoy, W. Dungel, S. Eidelman, N. Gabyshev, P. Goldenzweig, B. Golob, H. Ha, J. Haba, K. Hayasaka, H. Hayashii, M. Hazumi, Y. Horii, Y. Hoshi, W. -S. Hou, Y. B. Hsiung, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, D. H. Kah, J. H. Kang, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, S. K. Kim, Y. I. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, A. Kuzmin, Y. -J. Kwon, S. -H. Kyeong, J. S. Lange, J. S. Lee, M. J. Lee, A. Limosani, S. -W. Lin, D. Liventsev, R. Louvot, F. Mandl, A. Matyja, S. McOnie, T. Medvedeva, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, T. Mori, I. Nakamura, E. Nakano, H. Nakazawa, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, H. Ozaki, P. Pakhlov, G. Pakhlova, C. W. Park, H. Park, H. K. Park, R. Pestotnik, L. E. Piilonen, H. Sahoo, Y. Sakai, O. Schneider, A. Sekiya, K. Senyo, M. Shapkin, J. -G. Shiu, B. Shwartz, A. Somov, S. Stanic, M. Staric, T. Sumiyoshi, S. Suzuki, M. Tanaka, G. N. Taylor, Y. Teramoto, K. Trabelsi, S. Uehara, Y. Unno, S. Uno, Y. Usov, G. Varner, K. Vervink, C. C. Wang, C. H. Wang, M. -Z. Wang, P. Wang, Y. Watanabe, R. Wedd, E. Won, Y. Yamashita, C. C. Zhang, Z. P. Zhang, V. Zhulanov, T. Zivko, A. Zupanc, O. Zyukova

PHYSICAL REVIEW D 78 ( 9 ) 1 - 6 2008年11月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We present a measurement of the branching fraction for the Cabibbo- and color-suppressed B-0 -> chi(c1)pi(0) decay based on a data sample of 657 x 10(6) B (B) over bar events collected at the Y(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We observe a signal of 40 +/- 9 events with a significance of 4.7 sigma including systematic uncertainties. The measured branching fraction is B(B-0 -> chi(c1)pi(0)) = (1.12 +/- 0.25 (stat) +/- 0.12(syst.)) x 10(-5).

DOI： 10.1103/PhysRevD.78.091104

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High-statistics study of the tau(-)->pi(-)pi(0)nu(tau) decay 査読

M. Fujikawa, H. Hayashii, S. Eidelman, I. Adachi, H. Aihara, K. Arinstein, V. Aulchenko, T. Aushev, A. M. Bakich, V. Balagura, E. Barberio, A. Bay, I. Bedny, K. Belous, V. Bhardwaj, U. Bitenc, A. Bondar, M. Bracko, J. Brodzicka, T. E. Browder, P. Chang, Y. Chao, A. Chen, B. G. Cheon, R. Chistov, I. -S. Cho, Y. Choi, J. Dalseno, M. Dash, D. Epifanov, N. Gabyshev, B. Golob, H. Ha, J. Haba, K. Hara, Y. Hasegawa, K. Hayasaka, M. Hazumi, D. Heffernan, Y. Hoshi, W. -S. Hou, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwabuchi, M. Iwasaki, D. H. Kah, H. Kaji, S. U. Kataoka, T. Kawasaki, H. Kichimi, H. O. Kim, S. K. Kim, Y. I. Kim, Y. J. Kim, S. Korpar, P. Krizan, P. Krokovny, R. Kumar, A. Kuzmin, Y. -J. Kwon, S. -H. Kyeong, J. S. Lange, M. J. Lee, S. E. Lee, A. Limosani, C. Liu, Y. Liu, D. Liventsev, J. MacNaughton, F. Mandl, A. Matyja, S. McOnie, K. Miyabayashi, H. Miyata, Y. Miyazaki, R. Mizuk, G. R. Moloney, T. Mori, Y. Nagasaka, E. Nakano, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, O. Nitoh, S. Noguchi, T. Nozaki, T. Ohshima, S. Okuno, S. L. Olsen, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Palka, C. W. Park, H. Park, H. K. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, A. Poluektov, H. Sahoo, Y. Sakai, O. Schneider, A. J. Schwartz, R. Seidl, A. Sekiya, K. Senyo, M. E. Sevior, M. Shapkin, V. Shebalin, C. P. Shen, J. -G. Shiu, B. Shwartz, J. B. Singh, A. Sokolov, S. Stanic, M. Staric, T. Sumiyoshi, F. Takasaki, N. Tamura, M. Tanaka, G. N. Taylor, Y. Teramoto, K. Trabelsi, T. Tsuboyama, S. Uehara, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, K. Vervink, A. Vinokurova, C. H. Wang, P. Wang, X. L. Wang, Y. Watanabe, E. Won, Y. Yamashita, M. Yamauchi, C. Z. Yuan, C. C. Zhang, Z. P. Zhang, V. Zhilich, V. Zhulanov, T. Zivko, A. Zupanc, O. Zyukova

PHYSICAL REVIEW D 78 ( 7 ) 1 - 22 2008年10月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report a high-statistics measurement of the branching fraction for tau(-)->pi(-)pi(0)nu(tau) and the invariant mass spectrum of the produced pi(-)pi(0) system using 72.2 fb(-1) of data recorded with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The branching fraction obtained is (25.24 +/- 0.01 +/- 0.39)%, where the first error is statistical and the second is systematic. The unfolded pi(-)pi(0) mass spectrum is used to determine resonance parameters for the rho(770), rho(')(1450), and rho('')(1700) mesons. We also use this spectrum to estimate the hadronic (2 pi) contribution to the anomalous magnetic moment of the muon (a(mu)(pi pi)). Our result for a(mu)(pi pi) integrated over the mass range root s=2m(pi)-1.8 GeV/c(2) is a(mu)(pi pi)=(523.5 +/- 1.5(exp)+/- 2.6(Br)+/- 2.5(isospin))x10(-10), where the first error is due to the experimental uncertainties, the second is due to the uncertainties in the branching fractions, and the third is due to the uncertainties in the isospin-violating corrections.

DOI： 10.1103/PhysRevD.78.072006

Web of Science

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Observation of two resonancelike structures in the pi(+)chi(c1) mass distribution in exclusive (B)overbar(0)-> K-pi(+)chi(c1) decays 査読

R. Mizuk, R. Chistov, I. Adachi, H. Aihara, K. Arinstein, V. Aulchenko, T. Aushev, A. M. Bakich, V. Balagura, E. Barberio, A. Bay, V. Bhardwaj, U. Bitenc, A. Bondar, A. Bozek, M. Bracko, J. Brodzicka, T. E. Browder, M. -C. Chang, P. Chang, A. Chen, K. -F. Chen, B. G. Cheon, C. -C. Chiang, I. -S. Cho, S. -K. Choi, Y. Choi, J. Dalseno, M. Danilov, A. Drutskoy, S. Eidelman, D. Epifanov, P. Goldenzweig, B. Golob, H. Ha, J. Haba, K. Hayasaka, H. Hayashii, M. Hazumi, Y. Hoshi, W. -S. Hou, Y. B. Hsiung, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, D. H. Kah, H. Kaji, J. H. Kang, T. Kawasaki, H. Kichimi, H. J. Kim, H. O. Kim, Y. I. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kumar, A. Kuzmin, Y. -J. Kwon, S. -H. Kyeong, J. S. Lange, J. S. Lee, M. J. Lee, S. -W. Lin, C. Liu, Y. Liu, D. Liventsev, F. Mandl, S. McOnie, K. Miyabayashi, H. Miyata, Y. Miyazaki, E. Nakano, M. Nakao, H. Nakazawa, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Palka, C. W. Park, H. Park, H. K. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, A. Poluektov, H. Sahoo, Y. Sakai, O. Schneider, A. J. Schwartz, K. Senyo, J. -G. Shiu, B. Shwartz, J. B. Singh, A. Sokolov, A. Somov, S. Stanic, M. Staric, T. Sumiyoshi, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, K. Trabelsi, S. Uehara, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, K. E. Varvell, K. Vervink, C. H. Wang, M. -Z. Wang, P. Wang, X. L. Wang, Y. Watanabe, J. Wicht, E. Won, B. D. Yabsley, Y. Yamashita, C. C. Zhang, Z. P. Zhang, V. Zhilich, V. Zhulanov, T. Zivko, A. Zupanc, O. Zyukova

PHYSICAL REVIEW D 78 ( 7 ) 1 - 14 2008年10月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report the first observation of two resonancelike structures in the pi(+)chi(c1) invariant mass distribution near 4.1 GeV/c(2) in exclusive (B)overbar(0)-> K-pi(+)chi(c1) decays. From a Dalitz plot analysis in which the pi(+)chi(c1) mass structures are represented by Breit-Wigner resonance amplitudes, we determine masses and widths of: M-1=(4051 +/- 14(-41)(+20)) MeV/c(2), Gamma(1)=(82(-17-22)(+21+47)) MeV, M-2=(4248(-29-35)(+44+180)) MeV/c(2), and Gamma(2)=(177(-39-61)(+54+316)) MeV; and product branching fractions of B((B)overbar(0)-> K(-)Z(1,2)(+))xB(Z(1,2)(+)->pi(+)chi(c1))=(3.0(-0.8-1.6)(+1.5+3.7))x10(-5) and (4.0(-0.9-0.5)(+2.3+19.7))x10(-5), respectively. Here the first uncertainty is statistical, the second is systematic. The significance of each of the pi(+)chi(c1) structures exceeds 5 sigma, including the systematic uncertainty from various fit models. This analysis is based on 657x10(6) B(B)overbar events collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider.

DOI： 10.1103/PhysRevD.78.072004

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Study of the suppressed B meson decay B--> DK-, D -> K+pi(-) 査読

Y. Horii, K. Trabelsi, H. Yamamoto, I. Adachi, H. Aihara, K. Arinstein, V. Aulchenko, V. Balagura, E. Barberio, I. Bedny, K. Belous, V. Bhardwaj, U. Bitenc, S. Blyth, A. Bozek, M. Bracko, T. E. Browder, Y. Chao, A. Chen, W. T. Chen, B. G. Cheon, R. Chistov, I.-S. Cho, S.-K. Choi, Y. Choi, J. Dalseno, M. Dash, S. Eidelman, N. Gabyshev, H. Ha, J. Haba, T. Hara, K. Hayasaka, M. Hazumi, D. Heffernan, Y. Hoshi, W.-S. Hou, H. J. Hyun, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwabuchi, M. Iwasaki, Y. Iwasaki, D. H. Kah, H. Kaji, J. H. Kang, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, S. K. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, C. C. Kuo, Y. Kuroki, A. Kuzmin, Y.-J. Kwon, J. S. Lee, M. J. Lee, S. E. Lee, T. Lesiak, J. Li, S.-W. Lin, C. Liu, D. Liventsev, F. Mandl, S. McOnie, T. Medvedeva, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, G. R. Moloney, T. Nagamine, Y. Nagasaka, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, H. Ozaki, G. Pakhlova, C. W. Park, H. Park, H. K. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, H. Sahoo, Y. Sakai, O. Schneider, C. Schwanda, A. J. Schwartz, K. Senyo, M. E. Sevior, M. Shapkin, H. Shibuya, J.-G. Shiu, A. Somov, S. Stanic, M. Staric, T. Sumiyoshi, S. Suzuki, F. Takasaki, N. Tamura, M. Tanaka, Y. Teramoto, T. Tsuboyama, S. Uehara, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, K. E. Varvell, K. Vervink, C. H. Wang, M.-Z. Wang, P. Wang, X. L. Wang, Y. Watanabe, R. Wedd, E. Won, Y. Yamashita, M. Yamauchi, C. C. Zhang, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc, O. Zyukova

PHYSICAL REVIEW D 78 ( 7 ) 1 - 7 2008年10月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report a study of the suppressed B meson decay B--> DK- followed by D -> K+pi(-), where D indicates a D-0 or (D)overbar(0) state. The two decay paths interfere and provide information on the CP-violating angle phi(3). We use a data sample containing 657x10(6) B(B)overbar pairs recorded at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) storage ring. We do not find significant evidence for the mode B--> DK-, D -> K+pi(-), and set an upper limit of r(B)< 0.19, where r(B) is the magnitude of the ratio of amplitudes vertical bar A(B-->(D)K-0(-))/A(B-->(DK-)-K-0)vertical bar. The decay B--> D pi(-), D -> K+pi(-) is also analyzed as a reference, for which we observe a signal with 6.6 sigma significance, and measure the charge asymmetry A(D pi) to be -0.02(-0.16)(+0.15)(stat)+/- 0.04(syst). In addition, the ratio B(B-->(DK-)-K-0)/B(B--> D-0 pi(-)) is measured to be [6.77 +/- 0.23(stat)+/- 0.30(syst)]x10(-2).

DOI： 10.1103/PhysRevD.78.071901

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Observation of a Near-Threshold Enhancement in the e(+) e(-)-> Lambda(+)(c) Lambda(-)(c) Cross Section Using Initial-State Radiation 査読

G. Pakhlova, I. Adachi, H. Aihara, K. Arinstein, V. Aulchenko, T. Aushev, A. M. Bakich, V. Balagura, I. Bedny, V. Bhardwaj, U. Bitenc, A. Bondar, A. Bozek, M. Bracko, J. Brodzicka, T. E. Browder, P. Chang, A. Chen, B. G. Cheon, C. -C. Chiang, R. Chistov, I. -S. Cho, S. -K. Choi, Y. Choi, J. Dalseno, M. Danilov, M. Dash, S. Eidelman, N. Gabyshev, H. Ha, J. Haba, K. Hayasaka, M. Hazumi, D. Heffernan, Y. Hoshi, W. -S. Hou, Y. B. Hsiung, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, D. H. Kah, J. H. Kang, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, H. O. Kim, S. K. Kim, Y. I. Kim, Y. J. Kim, K. Kinoshita, P. Krizan, P. Krokovny, R. Kumar, A. Kuzmin, Y. -J. Kwon, S. -H. Kyeong, J. S. Lange, J. S. Lee, S. E. Lee, T. Lesiak, J. Li, A. Limosani, C. Liu, D. Liventsev, F. Mandl, A. Matyja, K. Miyabayashi, H. Miyata, Y. Miyazaki, R. Mizuk, T. Mori, E. Nakano, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, S. Noguchi, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, H. Ozaki, P. Pakhlov, H. Palka, C. W. Park, H. Park, H. K. Park, L. S. Peak, L. E. Piilonen, A. Poluektov, H. Sahoo, Y. Sakai, O. Schneider, K. Senyo, M. Shapkin, C. P. Shen, J. -G. Shiu, B. Shwartz, J. B. Singh, A. Sokolov, S. Stanic, M. Staric, T. Sumiyoshi, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, S. Uehara, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, C. H. Wang, M. -Z. Wang, P. Wang, X. L. Wang, Y. Watanabe, R. Wedd, E. Won, B. D. Yabsley, Y. Yamashita, M. Yamauchi, C. Z. Yuan, C. C. Zhang, Z. P. Zhang, V. Zhilich, V. Zhulanov, T. Zivko, A. Zupanc, O. Zyukova

PHYSICAL REVIEW LETTERS 101 ( 17 ) 1 - 6 2008年10月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report a measurement of the exclusive e(+) e(-) -> Lambda(+)(c)Lambda(-)(c) cross section as a function of center-of-mass energy near the Lambda(+)(c)Lambda(-)(c) threshold. A clear peak with a significance of 8.2 sigma is observed in the Lambda(+)(c)Lambda(-)(c) invariant mass distribution just above threshold. With an assumption of a resonance origin for the observed peak, a mass and width of M = [4634(-7)(+8)(stat)(-8)(+5)(syst)] MeV/c(2) and Gamma(tot) = [92(-24)(+40)(stat)(-21)(+10)(syst)] MeV are determined. The analysis is based on a study of events with initial-state-radiation photons in a data sample collected with the Belle detector at the Upsilon(4S) resonance and nearby continuum with an integrated luminosity of 695 fb(-1) at the KEKB asymmetric-energy e(+)e(-) collider.

DOI： 10.1103/PhysRevLett.101.172001

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Observation of B-+/-->psi(2S)pi(+/-) and search for direct CP violation 査読

V. Bhardwaj, R. Kumar, J. B. Singh, I. Adachi, H. Aihara, K. Arinstein, T. Aushev, T. Aziz, S. Bahinipati, A. M. Bakich, V. Balagura, E. Barberio, A. Bay, K. Belous, U. Bitenc, A. Bondar, A. Bozek, M. Bracko, J. Brodzicka, T. E. Browder, M. -C. Chang, P. Chang, A. Chen, B. G. Cheon, R. Chistov, I. -S. Cho, S. -K. Choi, Y. Choi, J. Dalseno, M. Dash, A. Drutskoy, S. Eidelman, P. Goldenzweig, B. Golob, H. Ha, T. Hara, K. Hayasaka, H. Hayashii, M. Hazumi, Y. Hoshi, W. -S. Hou, Y. B. Hsiung, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, N. J. Joshi, D. H. Kah, J. H. Kang, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, H. O. Kim, S. K. Kim, Y. I. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, A. Kuzmin, Y. -J. Kwon, S. -H. Kyeong, J. S. Lange, J. S. Lee, S. -W. Lin, C. Liu, Y. Liu, D. Liventsev, F. Mandl, A. Matyja, S. McOnie, T. Medvedeva, K. Miyabayashi, H. Miyata, Y. Miyazaki, R. Mizuk, G. R. Moloney, Y. Nagasaka, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, H. Ozaki, P. Pakhlov, G. Pakhlova, C. W. Park, H. Park, H. K. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, H. Sahoo, Y. Sakai, O. Schneider, J. Schuemann, C. Schwanda, A. J. Schwartz, K. Senyo, M. E. Sevior, M. Shapkin, C. P. Shen, J. -G. Shiu, B. Shwartz, A. Somov, S. Stanic, M. Staric, T. Sumiyoshi, S. Suzuki, N. Tamura, M. Tanaka, G. N. Taylor, Y. Teramoto, K. Trabelsi, S. Uehara, T. Uglov, Y. Unno, S. Uno, P. Urquijo, G. Varner, K. E. Varvell, K. Vervink, C. C. Wang, C. H. Wang, M. -Z. Wang, P. Wang, X. L. Wang, Y. Watanabe, E. Won, Y. Yamashita, M. Yamauchi, C. C. Zhang, V. Zhulanov, T. Zivko, A. Zupanc, O. Zyukova

PHYSICAL REVIEW D 78 ( 5 ) 1 - 6 2008年9月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report the first observation of B-+/- -> psi(2S)pi(+/-), a Cabibbo- and color-suppressed decay. This analysis is based on 657 x 10(6) B (B) over bar B events collected at the Y(4S) resonance with the Belle detector at the KEKB energy-asymmetric e(+)e(-) collider. The measured branching fraction is (2.44 +/- 0.22 +/- 0.20) x 10(-5) and the charge asymmetry is A = 0.022 +/- 0.085 +/- 0.016. The ratio of the branching fractions B(B-+/- -> psi(2S)pi(+/-))/B(B-+/- -> psi(2S)K-+/-) = (3.99 +/- 0.36 +/- 0.17)% is also determined.

DOI： 10.1103/PhysRevD.78.051104

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Measurement of branching fractions, isospin, and CP-violating asymmetries for exclusive b -> d gamma modes (vol 101, art no 111801, 2008) 査読

N. Taniguchi, M. Nakao, S. Nishida, I. Adachi, H. Aihara, K. Arinstein, T. Aushev, T. Aziz, A. M. Bakich, V. Balagura, A. Bay, K. Belous, V. Bhardwaj, U. Bitenc, A. Bondar, A. Bozek, M. Bracko, T. E. Browder, M. -C. Chang, P. Chang, Y. Chao, A. Chen, K. -F. Chen, W. T. Chen, B. G. Cheon, C. -C. Chiang, I. -S. Cho, Y. Choi, J. Dalseno, M. Dash, A. Drutskoy, W. Dungel, S. Eidelman, B. Golob, H. Ha, J. Haba, T. Hara, K. Hayasaka, H. Hayashii, M. Hazumi, Y. Hoshi, W. -S. Hou, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwabuchi, M. Iwasaki, Y. Iwasaki, N. J. Joshi, D. H. Kah, H. Kaji, J. H. Kang, H. Kawai, T. Kawasaki, H. Kichimi, S. K. Kim, Y. I. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kumar, A. Kuzmin, Y. -J. Kwon, S. -H. Kyeong, J. S. Lange, J. S. Lee, S. E. Lee, T. Lesiak, A. Limosani, S. -W. Lin, C. Liu, Y. Liu, D. Liventsev, F. Mandl, S. McOnie, K. Miyabayashi, Y. Miyazaki, G. R. Moloney, Y. Nagasaka, I. Nakamura, E. Nakano, H. Nakazawa, Z. Natkaniec, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, H. Ozaki, P. Pakhlov, G. Pakhlova, C. W. Park, H. Park, H. K. Park, K. S. Park, L. S. Peak, L. E. Piilonen, H. Sahoo, Y. Sakai, N. Sasao, O. Schneider, J. Schuemann, C. Schwanda, A. J. Schwartz, R. Seidl, K. Senyo, M. E. Sevior, M. Shapkin, C. P. Shen, J. -G. Shiu, B. Shwartz, J. B. Singh, A. Sokolov, S. Stanic, M. Staric, K. Sumisawa, T. Sumiyoshi, S. Y. Suzuki, N. Tamura, G. N. Taylor, Y. Teramoto, I. Tikhomirov, K. Trabelsi, T. Tsuboyama, S. Uehara, T. Uglov, Y. Unno, S. Uno, P. Urquijo, G. Varner, C. H. Wang, M. -Z. Wang, P. Wang, X. L. Wang, Y. Watanabe, R. Wedd, J. Wicht, E. Won, B. D. Yabsley, Y. Yamashita, Y. Yusa, Z. P. Zhang, V. Zhilich, V. Zhulanov, T. Zivko, A. Zupanc, O. Zyukova

PHYSICAL REVIEW LETTERS 101 ( 12 ) 1 - 6 2008年9月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

DOI： 10.1103/PhysRevLett.101.129904

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Measurement of the moments of the photon energy spectrum in B -> X-s gamma decays and determination of |V-cb| and m(b) at Belle 査読

C. Schwanda, P. Urquijo, E. Barberio, A. Limosani, I. Adachi, H. Aihara, K. Arinstein, T. Aushev, S. Bahinipati, A. M. Bakich, V. Balagura, I. Bedny, K. Belous, U. Bitenc, A. Bondar, A. Bozek, M. Brancko, M. -C. Chang, A. Chen, W. T. Chen, B. G. Cheon, R. Chistov, I. -S. Cho, Y. Choi, J. Dalseno, M. Dash, A. Drutskoy, S. Eidelman, B. Golob, H. Ha, J. Haba, T. Hara, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, Y. Hoshi, W. -S. Hou, H. J. Hyun, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, D. H. Kah, J. H. Kang, P. Kapusta, N. Katayama, H. Kichimi, H. J. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, Y. Kozakai, P. Krizan, P. Krokovny, R. Kumar, C. C. Kuo, Y. Kuroki, A. Kuzmin, Y. -J. Kwon, J. S. Lee, M. J. Lee, S. E. Lee, T. Lesiak, J. Li, C. Liu, D. Liventsev, F. Mandl, A. Matyja, S. McOnie, T. Medvedeva, W. Mitaroff, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, G. R. Moloney, E. Nakano, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, S. Noguchi, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, P. Pakhlov, G. Pakhlova, H. Palka, C. W. Park, H. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, H. Sahoo, Y. Sakai, O. Schneider, J. Schuemann, R. Seidl, A. Sekiya, K. Senyo, M. E. Sevior, M. Shapkin, H. Shibuya, J. -G. Shiu, B. Shwartz, A. Somov, S. Stanic, M. Staric, T. Sumiyoshi, F. Takasaki, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, K. Trabelsi, S. Uehara, Y. Unno, S. Uno, G. Varner, K. E. Varvell, K. Vervink, S. Villa, C. H. Wang, P. Wang, Y. Watanabe, R. Wedd, E. Won, B. D. Yabsley, H. Yamamoto, Y. Yamashita, Z. P. Zhang, A. Zupanc

PHYSICAL REVIEW D 78 ( 3 ) 1 - 13 2008年8月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

Using the previous Belle measurement of the inclusive photon energy in B -> X-s gamma decays, we determine the first and second moments of this spectrum for minimum photon energies in the B meson rest frame ranging from 1.8 to 2.3 GeV. Combining these measurements with recent Belle data on the lepton energy and hadronic mass moments in B -> X-c center dot nu decays, we perform fits to theoretical expressions derived in the 1S and kinetic mass schemes and extract the magnitude of the Cabibbo-Kobayashi-Maskawa matrix element V-cb, the b-quark mass, and other nonperturbative parameters. In the 1S scheme analysis we find |V-cb|=(41.56 +/- 0.68(fit)+/- 0.08(tau(B)))x10(-3) and m(b)(1S)=(4.723 +/- 0.055) GeV. In the kinetic scheme, we obtain |V-cb|=(41.58 +/- 0.69(fit)+/- 0.08(tau(B))+/- 0.58(th))x10(-3) and m(b)(kin)=(4.543 +/- 0.075) GeV.

DOI： 10.1103/PhysRevD.78.032016

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21aWA-3 SOI技術を用いた新しいX線イメージセンサーの開発(21aWA X線・中性子(X線),領域10(誘電体,格子欠陥,X線・粒子線,フォノン物性))

三好, 敏喜, 新井, 康夫, 池上, 陽一, 海野, 義信, 坪山, 透, 寺田, 進, 羽澄, 昌史, 高力, 孝, 田内, 一弥, 池本, 由希子, 池田, 博一, 原, 和彦, 三宅, 秀樹, 河内山, 真美, 瀬賀, 智子, 石野, 宏和, 花垣, 和則, 廣瀬, 穣, 大野, 守史

日本物理学会講演概要集 63 ( 2 ) 872 2008年8月

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記述言語：日本語掲載種別：研究論文（学術雑誌）出版者・発行元：社団法人日本物理学会

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Measurement of masses of the Xi(c)(2645) and Xi(c)(2815) baryons and observation of Xi(c)(2980)->Xi(c)(2645)pi 査読

T. Lesiak, I. Adachi, H. Aihara, K. Arinstein, A. M. Bakich, V. Balagura, E. Barberio, I. Bedny, K. Belous, V. Bhardwaj, U. Bitenc, S. Blyth, A. Bozek, M. Bracko, J. Brodzicka, T. E. Browder, Y. Chao, A. Chen, W. T. Chen, B. G. Cheon, R. Chistov, I. -S. Cho, S. -K. Choi, Y. Choi, J. Dalseno, M. Dash, S. Eidelman, N. Gabyshev, B. Golob, H. Ha, J. Haba, K. Hayasaka, M. Hazumi, D. Heffernan, Y. Hoshi, W. -S. Hou, H. J. Hyun, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, N. J. Joshi, D. H. Kah, H. Kaji, J. H. Kang, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, S. K. Kim, Y. J. Kim, S. Korpar, P. Krizan, P. Krokovny, C. C. Kuo, Y. -J. Kwon, S. Lange, J. S. Lee, M. J. Lee, S. E. Lee, J. Li, S. -W. Lin, C. Liu, D. Liventsev, F. Mandl, S. McOnie, T. Medvedeva, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, G. R. Moloney, Y. Nagasaka, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, H. Ozaki, G. Pakhlova, H. Palka, C. W. Park, H. K. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, H. Sahoo, Y. Sakai, O. Schneider, K. Senyo, M. E. Sevior, M. Shapkin, H. Shibuya, J. -G. Shiu, B. Shwartz, A. Sokolov, S. Stanic, M. Staric, T. Sumiyoshi, F. Takasaki, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, K. Trabelsi, T. Tsuboyama, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, P. Urquijo, G. Varner, K. E. Varvell, K. Vervink, C. C. Wang, C. H. Wang, M. -Z. Wang, P. Wang, X. L. Wang, Y. Watanabe, R. Wedd, E. Won, B. D. Yabsley, H. Yamamoto, Y. Yamashita, M. Yamauchi, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc, O. Zyukova

PHYSICS LETTERS B 665 ( 1 ) 9 - 15 2008年7月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

We report a precise measurement of the masses of the Xi(c)(2645) and Xi(c)(2815) baryons using a data sample of 414 fb(-1) collected by the Belle Collaboration at the KEKB e(+)e(-) collider. The states Xi(c)(2645)(0,+) are observed in the Xi(+.0)(c)pi(-.+) decay modes, while the Xi(c)(2815)(0.+) are reconstructed in the Xi(c)(2645)(+.0)pi(-.+) decay modes. The following mass splittings are determined: m(Xi c(2645)+) - m(Xi c(2645)0) = (-0.1 +/- 0.3(stat) +/- 0.6(syst)) MeV/c(2) and m(Xi c(2815)+) - m(Xi c(2815)0) (-3.4 +/- 1.9(stat) +/- 0.9(syst)) MeV/c(2) with a much better precision than the current world averages. We also observe a new decay mode, Xi(c)(2980)(0.+) -> Xi(c)(2645)(+.0)pi(-.+). (C) 2008 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.physletb.2008.05.055

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Search for B ->pi l(+)l(-) decays at Belle 査読

J. -T. Wei, K. -F. Chen, I. Adachi, H. Aihara, K. Arinstein, V. Aulchenko, T. Aushev, A. M. Bakich, V. Balagura, K. Belous, U. Bitenc, A. Bondar, A. Bozek, M. Bracko, T. E. Browder, P. Chang, Y. Chao, A. Chen, W. T. Chen, B. G. Cheon, R. Chistov, I. -S. Cho, Y. Choi, J. Dalseno, S. Eidelman, B. Golob, H. Hayashii, D. Heffernan, Y. Hoshi, W. -S. Hou, H. J. Hyun, T. Iijima, K. Inami, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, D. H. Kah, J. H. Kang, P. Kapusta, T. Kawasaki, H. Kichimi, H. O. Kim, J. H. Kim, S. K. Kim, Y. I. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krokovny, R. Kumar, Y. -J. Kwon, S. -H. Kyeong, J. S. Lee, T. Lesiak, A. Limosani, S. -W. Lin, D. Liventsev, F. Mandl, A. Matyja, S. McOnie, T. Medvedeva, H. Miyata, Y. Miyazaki, G. R. Moloney, M. Nakao, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, H. Ozaki, P. Pakhlov, G. Pakhlova, C. W. Park, H. K. Park, R. Pestotnik, M. Peters, L. E. Piilonen, H. Sahoo, Y. Sakai, O. Schneider, C. Schwanda, K. Senyo, M. Shapkin, J. -G. Shiu, J. B. Singh, A. Somov, S. Stanic, M. Staric, K. Sumisawa, T. Sumiyoshi, F. Takasaki, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, S. Uehara, T. Uglov, Y. Unno, S. Uno, Y. Usov, G. Varner, C. C. Wang, C. H. Wang, M. -Z. Wang, P. Wang, Y. Watanabe, J. Wicht, E. Won, Y. Yamashita, Z. P. Zhang, V. Zhilich, V. Zhulanov, T. Zivko, A. Zupanc, O. Zyukova

PHYSICAL REVIEW D 78 ( 1 ) 1 - 6 2008年7月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We present a search for the decays B+ -> pi(+)l(+)l(-) and B-0 ->pi(0)l(+)l(-), where l(+)l(-) either a mu(+)mu(-) or e(+)e(-) pair, with a data sample of 657x10(6) B (B) over bar pairs collected with the Belle detector at the KEKB e(+)e(-) collider. Signal events are reconstructed from a charged or a neutral pion candidate and a pair of oppositely charged electrons or muons. No significant signal is observed and we set an upper limit on the isospin-averaged branching fraction B(B -> pi l(+)l) < 6.2x10(-8) at the 90% confidence level.

DOI： 10.1103/PhysRevD.78.011101

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Search for B(0)-> J/psi phi decays 査読

Y. Liu, K. Trabelsi, I. Adachi, H. Aihara, K. Arinstein, V. Aulchenko, T. Aushev, T. Aziz, A. M. Bakich, A. Bay, I. Bedny, K. Belous, V. Bhardwaj, U. Bitenc, A. Bondar, A. Bozek, M. Bracko, T. E. Browder, P. Chang, Y. Chao, A. Chen, K. -F. Chen, B. G. Cheon, I. -S. Cho, Y. Choi, J. Dalseno, M. Dash, S. Eidelman, N. Gabyshev, B. Golob, H. Ha, J. Haba, T. Hara, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, Y. Hoshi, W. -S. Hou, H. J. Hyun, K. Inami, H. Ishino, R. Itoh, M. Iwabuchi, M. Iwasaki, Y. Iwasaki, D. H. Kah, S. U. Kataoka, N. Katayama, T. Kawasaki, H. Kichimi, H. J. Kim, H. O. Kim, S. K. Kim, Y. I. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kumar, Y. -J. Kwon, S. -H. Kyeong, J. S. Lange, J. S. Lee, M. J. Lee, J. Li, A. Limosani, C. Liu, D. Liventsev, A. Matyja, S. McOnie, T. Medvedeva, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, T. Nagamine, Y. Nagasaka, M. Nakao, H. Nakazawa, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, H. Ozaki, P. Pakhlov, G. Pakhlova, C. W. Park, H. Park, H. K. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, H. Sahoo, Y. Sakai, O. Schneider, J. Schuemann, C. Schwanda, A. J. Schwartz, A. Sekiya, K. Senyo, M. E. Sevior, M. Shapkin, C. P. Shen, J. -G. Shiu, J. B. Singh, S. Stanic, M. Staric, T. Sumiyoshi, F. Takasaki, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, T. Tsuboyama, S. Uehara, T. Uglov, Y. Unno, S. Uno, P. Urquijo, G. Varner, K. Vervink, C. H. Wang, P. Wang, X. L. Wang, Y. Watanabe, R. Wedd, E. Won, H. Yamamoto, Y. Yamashita, C. C. Zhang, Z. P. Zhang, V. Zhilich, V. Zhulanov, T. Zivko, A. Zupanc, O. Zyukova

PHYSICAL REVIEW D 78 ( 1 ) 1 - 5 2008年7月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report a search for the decay B(0) -> J/psi phi, using a sample of 657 x 10(6) B (B) over bar pairs collected with the Belle detector at the Gamma(4S) resonance. No statistically significant signal is found and an upper limit for the branching fraction is determined to be B(B(0) -> J/psi phi) < 9.4 x 10(-7) at 90% confidence level.

DOI： 10.1103/PhysRevD.78.011106

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Search for B+-> D*(+)pi(0) decay 査読

M. Iwabuchi, M. Nakao, I. Adachi, K. Arinstein, V. Aulchenko, T. Aushev, A. M. Bakich, V. Balagura, E. Barberio, A. Bay, K. Belous, V. Bhardwaj, U. Bitenc, A. Bozek, M. Bracko, T. E. Browder, A. Chen, W. T. Chen, B. G. Cheon, I. -S. Cho, Y. Choi, J. Dalseno, M. Dash, A. Drutskoy, S. Eidelman, M. Fujikawa, N. Gabyshev, H. Ha, J. Haba, K. Hayasaka, M. Hazumi, D. Heffernan, Y. Horii, Y. Hoshi, W. -S. Hou, H. J. Hyun, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, D. H. Kah, H. Kaji, J. H. Kang, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, H. O. Kim, Y. I. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kumar, C. C. Kuo, Y. -J. Kwon, J. S. Lee, M. J. Lee, S. E. Lee, T. Lesiak, A. Limosani, S. -W. Lin, C. Liu, Y. Liu, D. Liventsev, F. Mandl, A. Matyja, S. McOnie, T. Medvedeva, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, G. R. Moloney, H. Nakazawa, Z. Natkaniec, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, H. Ozaki, P. Pakhlov, G. Pakhlova, C. W. Park, H. K. Park, K. S. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, H. Sahoo, Y. Sakai, O. Schneider, J. Schuemann, C. Schwanda, A. Sekiya, K. Senyo, M. Shapkin, H. Shibuya, J. -G. Shiu, B. Shwartz, S. Stanic, M. Staric, K. Sumisawa, T. Sumiyoshi, S. Suzuki, M. Tanaka, Y. Teramoto, I. Tikhomirov, K. Trabelsi, Y. Uchida, S. Uehara, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, K. E. Varvell, K. Vervink, C. C. Wang, C. H. Wang, M. -Z. Wang, P. Wang, X. L. Wang, Y. Watanabe, J. Wicht, E. Won, Y. Yamashita, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc

PHYSICAL REVIEW LETTERS 101 ( 4 ) 1 - 5 2008年7月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report on a search for the doubly Cabibbo suppressed decay B+ -> D*(+) pi(0), based on a data sample of 657 X 106 B (B) over bar pairs collected at the Y(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We find no significant signal and set an upper limit of B(B+ -> D*(+) pi(0)) < 3. 6 X 10(-6) at the 90% confidence level. This limit can be used to constrain the ratio between suppressed and favored B -> D*pi decay amplitudes, r < 0.051, at the 90% confidence level.

DOI： 10.1103/PhysRevLett.101.041601

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Improved search for D(0)-(D)over-bar(0) mixing using semileptonic decays at Belle 査読

U. Bitenc, I. Adachi, H. Aihara, K. Arinstein, T. Aushev, A. M. Bakich, V. Balagura, I. Bedny, K. Belous, A. Bondar, A. Bozek, M. Bracko, J. Brodzicka, T. E. Browder, M. -C. Chang, A. Chen, W. T. Chen, B. G. Cheon, R. Chistov, I. -S. Cho, Y. Choi, J. Dalseno, M. Danilov, M. Dash, A. Drutskoy, S. Eidelman, S. Fratina, B. Golob, H. Ha, J. Haba, T. Hara, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, Y. Hoshi, W. -S. Hou, Y. B. Hsiung, H. J. Hyun, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, D. H. Kah, H. Kaji, P. Kapusta, N. Katayama, T. Kawasaki, H. Kichimi, H. J. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, Y. Kozakai, P. Krizan, P. Krokovny, R. Kumar, C. C. Kuo, Y. Kuroki, Y. -J. Kwon, J. S. Lee, M. J. Lee, S. E. Lee, T. Lesiak, J. Li, C. Liu, D. Liventsev, F. Mandl, A. Matyja, S. McOnie, T. Medvedeva, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, M. Nakao, H. Nakazawa, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Palka, C. W. Park, H. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, H. Sahoo, Y. Sakai, O. Schneider, J. Schuermann, A. J. Schwartz, K. Senyo, M. E. Sevior, M. Shapkin, H. Shibuya, J. -G. Shiu, J. B. Singh, A. Sokolov, A. Somov, S. Stanic, M. Staric, T. Sumiyoshi, F. Takasaki, N. Tamura, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, K. Trabelsi, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, P. Urquijo, G. Varner, K. E. Varvell, K. Vervink, S. Villa, A. Vinokurova, C. C. Wang, C. H. Wang, M. -Z. Wang, P. Wang, Y. Watanabe, R. Wedd, E. Won, B. D. Yabsley, H. Yamamoto, Y. Yamashita, C. Z. Yuan, C. C. Zhang, Z. P. Zhang, A. Zupanc

PHYSICAL REVIEW D 77 ( 11 ) 1 - 20 2008年6月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

A search for mixing in the neutral D meson system has been performed using semileptonic D(0) -> K((*)-) e(+) nu and D(0) -> K((*)-) mu(+) nu decays. Neutral D mesons from D(*+)-> D(0)pi(+)(s) decays are used and the flavor at production is tagged by the charge of the slow pion. The measurement is performed using 492 fb(-1) of data recorded by the Belle detector. From the yield of right-sign and wrong-sign decays arising from nonmixed and mixed events, respectively, we measure the ratio of the time-integrated mixing rate to the unmixed rate to be R(M)=(1.3 +/- 2.2 +/- 2.0) x 10(-4). This corresponds to an upper limit of R(M) < 6.1 x 10(-4) at the 90% C.L.

DOI： 10.1103/PhysRevD.77.112003

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Observation of B-0 -> p(p)over-barK*(0) with a large K*(0) polarization 査読

J. -H. Chen, M. -Z. Wang, I. Adachi, H. Aihara, K. Arinstein, V. Aulchenko, T. Aushev, A. M. Bakich, V. Balagura, E. Barberio, A. Bay, I. Bedny, K. Belous, U. Bitenc, A. Bondar, A. Bozek, M. Bracko, T. E. Browder, M. -C. Chang, Y. Chao, A. Chen, K. -F. Chen, W. T. Chen, B. G. Cheon, R. Chistov, I. -S. Cho, S. -K. Choi, Y. Choi, J. Dalseno, M. Dash, A. Drutskoy, S. Eidelman, B. Golob, H. Ha, J. Haba, T. Hara, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, Y. Hoshi, W. -S. Hou, Y. B. Hsiung, H. J. Hyun, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, N. J. Joshi, D. H. Kah, H. Kaji, P. Kapusta, N. Katayama, T. Kawasaki, H. Kichimi, H. J. Kim, S. K. Kim, Y. J. Kim, K. Kinoshita, P. Krokovny, R. Kumar, C. C. Kuo, Y. -J. Kwon, J. S. Lee, M. J. Lee, S. E. Lee, T. Lesiak, J. Li, A. Limosani, C. Liu, D. Liventsev, F. Mandl, A. Matyja, S. McOnie, T. Medvedeva, W. Mitaroff, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, E. Nakano, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Palka, C. W. Park, H. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, M. Rozanska, H. Sahoo, Y. Sakai, O. Schneider, K. Senyo, M. E. Sevior, M. Shapkin, C. P. Shen, H. Shibuya, J. -G. Shiu, J. B. Singh, A. Somov, S. Stanic, M. Staric, T. Sumiyoshi, F. Takasaki, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, K. Trabelsi, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, K. Vervink, S. Villa, A. Vinokurova, C. C. Wang, C. H. Wang, P. Wang, X. L. Wang, Y. Watanabe, R. Wedd, E. Won, H. Yamamoto, Y. Yamashita, C. C. Zhang, Z. P. Zhang, V. Zhulanov, A. Zupanc

PHYSICAL REVIEW LETTERS 100 ( 25 ) 1 - 6 2008年6月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

Using a 492 fb(-1) data sample collected near the Y(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+) e(-) collider, we observe the decay B-0 --> p (p) over barK*(0) with a branching fraction of (1.18(-0.25)(+0.29)(stat) +/- 0.11(syst)) x 10(-6). We study the decay dynamics of B-0 --> p (p) over barK(0) and compare with B+ --> p (p) over barK*(+). The K*(0) meson is found to be almost 100% polarized ( with a fraction of (101 +/- 13 +/- 3)% in the helicity zero state), while the K*(+) meson has a (32 +/- 17 +/- 9)% fraction in the helicity zero state. The direct CP asymmetries for B-0 --> p (p) over barK*(0) and B+ --> p (p) over barK*(+) are measured to be -0.08 +/- 0.20 +/- 0.02 and -0.01 +/- 0.19 +/- 0.02, respectively. In addition, we report improved measurements of the branching fractions B(B+ --> p (p) over barK*(+)) = (3.38(-0.60)(+0.73) +/- 0.39) x 10(-6) and B(B-0 --> p (p) over barK(0)) = (2.51(-0.29)(+0.35) +/- 0.21) x 10(-6), which supersede our previous measurements.

DOI： 10.1103/PhysRevLett.100.251801

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Measurement of B(D-s(+)->mu(+)nu(mu)) 査読

L. Widhalm, I. Adachi, H. Aihara, T. Aushev, A. M. Bakich, V. Balagura, E. Barberio, A. Bay, I. Bedny, V. Bhardwaj, U. Bitenc, S. Blyth, A. Bozek, M. Bracko, J. Brodzicka, T. E. Browder, Y. Chao, A. Chen, W. T. Chen, B. G. Cheon, R. Chistov, I. -S. Cho, Y. Choi, J. Dalseno, M. Dash, A. Drutskoy, S. Eidelman, P. Goldenzweig, B. Golob, H. Ha, J. Haba, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, Y. Hoshi, W. -S. Hou, Y. B. Hsiung, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, D. H. Kah, J. H. Kang, P. Kapusta, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, S. K. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kumar, C. C. Kuo, Y. Kuroki, A. Kuzmin, Y. -J. Kwon, J. Lee, J. S. Lee, M. J. Lee, S. E. Lee, T. Lesiak, S. -W. Lin, C. Liu, D. Liventsev, F. Mandl, A. Matyja, S. McOnie, W. Mitaroff, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, G. R. Moloney, E. Nakano, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, S. Noguchi, S. Ogawa, T. Ohshima, S. Okuno, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Palka, C. W. Park, H. Park, K. S. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, H. Sahoo, Y. Sakai, O. Schneider, R. Seidl, A. Sekiya, K. Senyo, M. Shapkin, H. Shibuya, J. -G. Shiu, J. B. Singh, A. Somov, S. Stanic, M. Staric, T. Sumiyoshi, S. Y. Suzuki, F. Takasaki, N. Tamura, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, K. Trabelsi, S. Uehara, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, K. Vervink, C. H. Wang, M. -Z. Wang, P. Wang, Y. Watanabe, R. Wedd, E. Won, B. D. Yabsley, H. Yamamoto, Y. Yamashita, Z. P. Zhang, V. Zhilich, A. Zupanc, O. Zyukova

PHYSICAL REVIEW LETTERS 100 ( 24 ) 1 - 6 2008年6月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We present a measurement of the branching fraction B(D-s(+)->mu(+)nu(mu)) using a 548 fb(-1) data sample collected by the Belle experiment at the KEKB e(+)e(-) collider. The D-s momentum is determined by reconstruction of the system recoiling against DK gamma X in events of the type e(+)e(-)->(DsDKX)-D-*, D-s(*)-> D-s gamma, where X represents additional pions or photons from fragmentation. This full-reconstruction method provides high resolution in the neutrino momentum and thus good background separation, equivalent to that achieved by experiments at the tau-charm factories. We obtain the branching fraction B(D-s(+)->mu(+)nu(mu))=[6.44 +/- 0.76(stat)+/- 0.57(syst)]x10(-3), implying a D-s decay constant of f(Ds)=[275 +/- 16(stat)+/- 12(syst)] MeV.

DOI： 10.1103/PhysRevLett.100.241801

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Study of B -> D(**)l nu with full reconstruction tagging 査読

D. Liventsev, I. Adachi, H. Aihara, K. Arinstein, T. Aushev, A. M. Bakich, V. Balagura, E. Barberio, A. Bay, U. Bitenc, A. Bondar, A. Bozek, M. Bracko, J. Brodzicka, T. E. Browder, P. Chang, Y. Chao, A. Chen, K. -F. Chen, W. T. Chen, B. G. Cheon, R. Chistov, I. -S. Cho, Y. Choi, S. Cole, J. Dalseno, M. Danilov, M. Dash, A. Drutskoy, S. Eidelman, D. Epifanov, N. Gabyshev, B. Golob, H. Ha, J. Haba, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, Y. Hoshi, W. -S. Hou, Y. B. Hsiung, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, D. H. Kah, J. H. Kang, P. Kapusta, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kumar, C. C. Kuo, A. Kuzmin, Y. -J. Kwon, J. S. Lee, M. J. Lee, S. E. Lee, T. Lesiak, A. Limosani, S. -W. Lin, Y. Liu, F. Mandl, S. McOnie, T. Medvedeva, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, D. Mohapatra, G. R. Moloney, E. Nakano, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, H. Ozaki, P. Pakhlov, G. Pakhlova, C. W. Park, H. Park, K. S. Park, R. Pestotnik, L. E. Piilonen, Y. Sakai, O. Schneider, C. Schwanda, K. Senyo, M. Shapkin, H. Shibuya, J. -G. Shiu, B. Shwartz, A. Sokolov, A. Somov, S. Stanic, M. Staric, T. Sumiyoshi, S. Suzuki, F. Takasaki, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, K. Vervink, S. Villa, A. Vinokurova, C. C. Wang, C. H. Wang, M. -Z. Wang, P. Wang, X. L. Wang, Y. Watanabe, E. Won, Y. Yamashita, Z. P. Zhang, V. Zhilich, A. Zupanc, O. Zyukova

PHYSICAL REVIEW D 77 ( 9 ) 1 - 7 2008年5月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report a study of semileptonic B decays to P-wave D(**) mesons. Semileptonic decay to a D(2)(*) meson is observed for the first time and its product branching ratio is measured to be B(B(+)-> (D) over bar (*0)(2)l(+)nu) x B((D) over bar (*0)(2)-> D(-)pi(+)) = 0.22 +/- 0.03(stat.) +/- 0.04(syst.)%. The result is obtained using fully reconstructed B tags from a data sample that contains 657 x 10(6)B (B) over bar pairs collected at the Gamma(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider.

DOI： 10.1103/PhysRevD.77.091503

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Search for resonant B-+/--> K(+/-)h -> K-+/-gamma gamma decays at Belle 査読

J. Wicht, I. Adachi, H. Aihara, D. Anipko, V. Aulchenko, T. Aushev, A. M. Bakich, E. Barberio, I. Bedny, U. Bitenc, I. Bizjak, A. Bondar, A. Bozek, M. Bracko, J. Brodzicka, T. E. Browder, P. Chang, Y. Chao, A. Chen, W. T. Chen, B. G. Cheon, I. -S. Cho, Y. Choi, Y. K. Choi, J. Dalseno, M. Dash, S. Eidelman, D. Epifanov, S. Fratina, A. Go, A. Gorisek, H. Ha, T. Hara, K. Hayasaka, M. Hazumi, D. Heffernan, L. Hinz, Y. Hoshi, W. -S. Hou, Y. B. Hsiung, H. J. Hyun, K. Ikado, K. Inami, A. Ishikawa, H. Ishino, M. Iwasaki, Y. Iwasaki, C. Jacoby, D. H. Kah, H. Kaji, J. H. Kang, P. Kapusta, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, S. K. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kumar, C. C. Kuo, A. Kuzmin, Y. -J. Kwon, J. S. Lee, M. J. Lee, S. E. Lee, T. Lesiak, J. Li, A. Limosani, S. -W. Lin, D. Liventsev, G. Majumder, F. Mandl, T. Matsumoto, A. Matyja, S. McOnie, T. Medvedeva, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, D. Mohapatra, G. R. Moloney, E. Nakano, M. Nakao, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, Y. Onuki, P. Pakhlov, G. Pakhlova, C. W. Park, H. Park, K. S. Park, R. Pestotnik, L. E. Piilonen, F. J. Ronga, Y. Sakai, T. Schietinger, O. Schneider, J. Schuemann, K. Senyo, M. E. Sevior, M. Shapkin, C. P. Shen, H. Shibuya, J. B. Singh, A. Somov, S. Stanic, M. Staric, H. Stoeck, T. Sumiyoshi, F. Takasaki, M. Tanaka, G. N. Taylor, Y. Teramoto, X. C. Tian, I. Tikhomirov, T. Tsukamoto, S. Uehara, Y. Unno, S. Uno, P. Urquijo, Y. Ushiroda, Y. Usov, G. Varner, K. E. Varvell, K. Vervink, S. Villa, A. Vinokurova, C. H. Wang, P. Wang, Y. Watanabe, R. Wedd, E. Won, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, Z. P. Zhang, V. Zhilich, A. Zupanc, N. Zwahlen

PHYSICS LETTERS B 662 ( 4 ) 323 - 329 2008年5月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

DOI： 10.1016/j.physletb.2008.03.029

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Measurement of the branching fraction and charge asymmetry of the decay B+-> D+(D)over-bar(0) and search for B-0 -> D-0(D)over-bar(0) 査読

I. Adachi, H. Aihara, K. Arinstein, V. Aulchenko, T. Aushev, A. M. Bakich, V. Balagura, K. Belous, V. Bhardwaj, U. Bitenc, S. Blyth, A. Bondar, A. Bozek, M. Bracko, J. Brodzicka, Y. Chao, A. Chen, K. -F. Chen, W. T. Chen, B. G. Cheon, R. Chistov, I. -S. Cho, S. -K. Choi, Y. Choi, J. Dalseno, M. Dash, S. Eidelman, D. Epifanov, S. Fratina, H. Ha, J. Haba, T. Hara, M. Hazumi, D. Heffernan, Y. Hoshi, W. -S. Hou, H. J. Hyun, K. Inami, A. Ishikawa, H. Ishino, M. Iwasaki, Y. Iwasaki, D. H. Kah, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, S. K. Kim, K. Kinoshita, S. Korpar, P. Krokovny, C. C. Kuo, Y. Kuroki, A. Kuzmin, Y. -J. Kwon, J. S. Lee, M. J. Lee, S. E. Lee, T. Lesiak, S. -W. Lin, C. Liu, D. Liventsev, F. Mandl, S. McOnie, T. Medvedeva, W. Mitaroff, K. Miyabayashi, H. Miyata, Y. Miyazaki, R. Mizuk, D. Mohapatra, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, P. Pakhlov, G. Pakhlova, C. W. Park, H. Park, H. K. Park, L. S. Peak, L. E. Piilonen, A. Poluektov, H. Sahoo, Y. Sakai, O. Schneider, J. Schumann, C. Schwanda, K. Senyo, M. Shapkin, H. Shibuya, J. -G. Shiu, A. Somov, M. Staric, T. Sumiyoshi, M. Tanaka, Y. Teramoto, K. Trabelsi, T. Tsuboyama, S. Uehara, K. Ueno, Y. Unno, S. Uno, Y. Usov, G. Varner, K. E. Varvell, K. Vervink, P. Wang, Y. Watanabe, E. Won, Y. Yamashita, C. C. Zhang, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc, O. Zyukova

PHYSICAL REVIEW D 77 ( 9 ) 1 - 5 2008年5月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report an improved measurement of the B+-> D+(D) over bar (0) and B-0 -> D-0(D) over bar (0) decays based on 657 x 10(6) B (B) over bar events collected with the Belle detector at KEKB. We measure the branching fraction and charge asymmetry for the B+-> D+(D) over bar (0) decay: B(B+-> D+(D) over bar (0)) = (3.85 +/- 0.31 +/- 0.38) x 10(-4) and A(CP)(B+-> D+(D) over bar (0))= 0.00 +/- 0.08 +/- 0.02, where the first error is statistical and the second is systematic. We also set the upper limit for the B-0 -> D-0(D) over bar (0) decay: B(B-0 -> D-0(D) over bar (0)) < 0.43 x 10(-4) at 90% CL.

DOI： 10.1103/PhysRevD.77.091101

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Measurements of time-dependent CP violation in B(0) -> (2S)K(S)(0) decays 査読

H. Sahoo, T. E. Browder, K. Trabelsi, I. Adachi, H. Aihara, K. Arinstein, T. Aushev, S. Bahinipati, A. M. Bakich, V. Balagura, E. Barberio, A. Bay, I. Bedny, K. Belous, U. Bitenc, A. Bondar, A. Bozek, M. Bracko, M. -C. Chang, Y. Chao, A. Chen, W. T. Chen, B. G. Cheon, R. Chistov, I. -S. Cho, Y. Choi, J. Dalseno, M. Dash, A. Drutskoy, S. Eidelman, B. Golob, H. Ha, J. Haba, K. Hara, T. Hara, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, Y. Hoshi, W. -S. Hou, Y. B. Hsiung, H. J. Hyun, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, N. J. Joshi, D. H. Kah, J. H. Kang, P. Kapusta, N. Katayama, H. Kichimi, H. J. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, Y. Kozakai, P. Krizan, P. Krokovny, R. Kumar, C. C. Kuo, Y. Kuroki, Y. -J. Kwon, J. S. Lee, M. J. Lee, S. E. Lee, T. Lesiak, J. Li, A. Limosani, D. Liventsev, F. Mandl, A. Matyja, S. McOnie, T. Medvedeva, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, G. R. Moloney, E. Nakano, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, S. Noguchi, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, P. Pakhlov, G. Pakhlova, H. Palka, C. W. Park, H. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, Y. Sakai, O. Schneider, C. Schwanda, A. J. Schwartz, K. Senyo, M. E. Sevior, M. Shapkin, C. P. Shen, H. Shibuya, J. -G. Shiu, B. Shwartz, A. Somov, S. Stanic, M. Staric, K. Sumisawa, T. Sumiyoshi, F. Takasaki, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, S. Uehara, K. Ueno, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, K. E. Varvell, K. Vervink, S. Villa, C. H. Wang, P. Wang, X. L. Wang, Y. Watanabe, R. Wedd, E. Won, H. Yamamoto, Y. Yamashita, C. C. Zhang, Z. P. Zhang, V. Zhulanov, A. Zupanc

PHYSICAL REVIEW D 77 ( 9 ) 1 - 6 2008年5月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report improved measurements of time-dependent CP violation parameters for B(0)((B) over bar (0))-> psi(2S)K(S)(0). This analysis is based on a data sample of 657 x 10(6) B (B) over bar pairs collected at the Gamma(4S) resonance with the Belle detector at the KEKB energy-asymmetric e(+)e(-) collider. We fully reconstruct one neutral B meson in the psi(2S)K(S)(0) CP-eigenstate decay channel, and the flavor of the accompanying B meson is identified to be either B(0) or (B) over bar (0) from its decay products. CP violation parameters are obtained from the asymmetries in the distributions of the proper-time intervals between the two B decays S(psi(2S)KS)(0) = + 0.72 +/- 0.09 (stat) +/- 0.03 (syst), A(psi(2S)KS)(0) = + 0.04 +/- 0.07 (stat) +/- 0.05 (syst). These results are in agreement with results from measurements of B(0)-> J/psi K(0).

DOI： 10.1103/PhysRevD.77.091103

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Production of new charmoniumlike states in e(+)e(-)-> J/psi D(()*())(D)over-bar(()*()) at root s approximate to 10.6 GeV 査読

P. Pakhlov, I. Adachi, H. Aihara, K. Arinstein, T. Aushev, T. Aziz, A. M. Bakich, V. Balagura, E. Barberio, I. Bedny, K. Belous, V. Bhardwaj, U. Bitenc, A. Bondar, A. Bozek, M. Bracko, T. E. Browder, Y. Chao, A. Chen, K. -F. Chen, W. T. Chen, B. G. Cheon, R. Chistov, Y. Choi, J. Dalseno, M. Danilov, M. Dash, A. Drutskoy, S. Eidelman, B. Golob, H. Ha, K. Hayasaka, M. Hazumi, D. Heffernan, Y. Hoshi, W. -S. Hou, Y. B. Hsiung, H. J. Hyun, T. Iijima, K. Ikado, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, D. H. Kah, J. H. Kang, P. Kapusta, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kumar, C. C. Kuo, Y. -J. Kwon, J. S. Lange, M. J. Lee, S. E. Lee, T. Lesiak, A. Limosani, S. -W. Lin, Y. Liu, D. Liventsev, F. Mandl, A. Matyja, T. Medvedeva, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, G. R. Moloney, T. Mori, E. Nakano, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, S. Noguchi, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, H. Ozaki, G. Pakhlova, H. Palka, C. W. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, H. Sahoo, Y. Sakai, O. Schneider, R. Seidl, K. Senyo, M. E. Sevior, M. Shapkin, C. P. Shen, H. Shibuya, J. -G. Shiu, J. B. Singh, A. Somov, S. Stanic, M. Staric, T. Sumiyoshi, S. Suzuki, F. Takasaki, K. Tamai, N. Tamura, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, K. Vervink, C. H. Wang, P. Wang, X. L. Wang, Y. Watanabe, E. Won, B. D. Yabsley, Y. Yamashita, M. Yamauchi, C. Z. Yuan, C. C. Zhang, Z. P. Zhang, V. Zhilich, A. Zupanc, O. Zyukova

PHYSICAL REVIEW LETTERS 100 ( 20 ) 1 - 5 2008年5月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report a study of the processes e(+)e(-)-> J/psi D(()*())(D) over bar (()*()). In J/psi D*(D) over bar (()*()) we observe a significant enhancement in the D*(D) over bar (()*()) invariant mass spectrum, which we interpret as a new charmoniumlike state and denote X(4160). The X(4160) parameters are M=(4156(-20)(+25)+/- 15) MeV/c(2) and Gamma=(139(-61)(+111)+/- 21) MeV. We also report a new measurement of the X(3940) mass and width: M=(3942(-6)(+7)+/- 6) MeV/c(2) and Gamma=(37(-15)(+26)+/- 8) MeV. The analysis is based on a 693 fb(-1) data sample recorded near the Upsilon(4S) resonance by the Belle detector at the KEKB asymmetric-energy collider.

DOI： 10.1103/PhysRevLett.100.202001

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Measurement of the ratio B(D-0 ->pi(+)pi(-)pi(0))/B(D-0 -> K-pi(+)pi(0)) and the time-integrated CP asymmetry in D-0 ->pi(+)pi(-)pi(0) 査読

K. Arinstein, I. Adachi, H. Aihara, V. Aulchenko, T. Aushev, T. Aziz, S. Bahinipati, A. M. Bakich, V. Balagura, E. Barberio, A. Bay, I. Bedny, K. Belous, V. Bhardwaj, U. Bitenc, S. Blyth, A. Bondar, A. Bozek, M. Bracko, T. E. Browder, Y. Chao, A. Chen, W. T. Chen, B. G. Cheon, R. Chistov, I. -S. Cho, Y. Choi, S. Cole, J. Dalseno, M. Danilov, M. Dash, A. Drutskoy, S. Eidelman, D. Epifanov, N. Gabyshev, P. Goldenzweig, B. Golob, H. Ha, J. Haba, K. Hara, K. Hayasaka, H. Hayashii, M. Hazumi, Y. Hoshi, W. -S. Hou, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, N. J. Joshi, D. H. Kah, H. Kaji, J. H. Kang, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, S. K. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, Y. Kozakai, P. Krizan, P. Krokovny, R. Kumar, C. C. Kuo, Y. Kuroki, A. Kuzmin, Y. -J. Kwon, J. S. Lange, J. S. Lee, M. J. Lee, S. E. Lee, T. Lesiak, A. Limosani, S. -W. Lin, C. Liu, Y. Liu, D. Liventsev, F. Mandl, S. McOnie, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, G. R. Moloney, T. Mori, E. Nakano, M. Nakao, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, H. Ozaki, P. Pakhlov, G. Pakhlova, C. W. Park, H. Park, K. S. Park, R. Pestotnik, L. E. Piilonen, A. Poluektov, H. Sahoo, Y. Sakai, O. Schneider, J. Schfimann, C. Schwanda, A. J. Schwartz, K. Senyo, M. E. Sevior, M. Shapkin, V. Shebalin, H. Shibuya, J. -G. Shiu, B. Shwartz, J. B. Singh, A. Sokolov, A. Somov, S. Stanic, M. Staric, T. Sumiyoshi, S. Y. Suzuki, F. Takasaki, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, Y. Usov, G. Varner, K. Vervink, S. Villa, A. Vinokurova, C. H. Wang, M. -Z. Wang, P. Wang, X. L. Wang, Y. Watanabe, E. Won, B. D. Yabsley, H. Yamamoto, Y. Yamashita, C. C. Zhang, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc, O. Zyukova

PHYSICS LETTERS B 662 ( 2 ) 102 - 110 2008年4月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

We report a high-statistics measurement of the relative branching fraction B(D-0 --> pi(+)pi(-)pi(0))/B(D-0 --> K-pi(+)pi(0)) using a 532 fb(-1) data sample collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The measured value of the relative branching fraction is B(D-0 --> pi(+)pi-(7)pi(0))/B(D-0 --> K-pi(+)pi(0)) = (10.12 +/- 0.04(stat) +/- 0.18(syst)) x 10(-2), which has an accuracy comparable to the world average. We also present a measurement of the time-integrated CP asymmetry in D-0 pi(+)pi(-)pi(0) decay. The result, A(CP) = (0.43 +/- 1.30)%, shows no significant CP violation. (C) 2008 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.physletb.2008.02.054

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Observation of a resonancelike structure in the pi(+-)psi ' mass distribution in exclusive B -> K pi(+-)psi ' decays 査読

S. -K. Choi, S. L. Olsen, I. Adachi, H. Aihara, V. Aulchenko, T. Aushev, T. Aziz, A. M. Bakich, V. Balagura, I. Bedny, U. Bitenc, A. Bondar, A. Bozek, M. Bracko, J. Brodzicka, T. E. Browder, P. Chang, Y. Chao, A. Chen, K. -F. Chen, W. T. Chen, B. G. Cheon, R. Chistov, Y. Choi, J. Dalseno, M. Danilov, M. Dash, S. Eidelman, N. Gabyshev, B. Golob, J. Haba, T. Hara, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, Y. Hoshi, W. -S. Hou, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, D. H. Kah, J. H. Kang, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, H. O. Kim, S. K. Kim, Y. J. Kim, K. Kinoshita, P. Krizan, P. Krokovny, R. Kumar, C. C. Kuo, A. Kuzmin, Y. -J. Kwon, J. S. Lange, J. S. Lee, M. J. Lee, S. E. Lee, T. Lesiak, A. Limosani, S. -W. Lin, Y. Liu, D. Liventsev, F. Mandl, A. Matyja, S. McOnie, T. Medvedeva, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, G. R. Moloney, E. Nakano, M. Nakao, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, H. Ozaki, P. Pakhlov, G. Pakhlova, C. W. Park, H. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, H. Sahoo, Y. Sakai, O. Schneider, A. J. Schwartz, K. Senyo, M. Shapkin, C. P. Shen, H. Shibuya, B. Shwartz, J. B. Singh, A. Somov, S. Stanic, M. Staric, T. Sumiyoshi, S. Y. Suzuki, F. Takasaki, K. Tamai, M. Tanaka, Y. Teramoto, I. Tikhomirov, S. Uehara, T. Uglov, Y. Unno, S. Uno, P. Urquijo, G. Varner, K. Vervink, S. Villa, C. H. Wang, M. -Z. Wang, P. Wang, X. L. Wang, Y. Watanabe, R. Wedd, E. Won, B. D. Yabsley, Y. Yamashita, C. Z. Yuan, Z. P. Zhang, V. Zhulanov, A. Zupanc, O. Zyukova

PHYSICAL REVIEW LETTERS 100 ( 14 ) 1 - 6 2008年4月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

A distinct peak is observed in the pi(+/-)psi' invariant mass distribution near 4.43 GeV in B -> K pi(+/-)psi' decays. A fit using a Breit-Wigner resonance shape yields a peak mass and width of M=4433 +/- 4(stat)+/- 2(syst) MeV and Gamma=45(-13)(+18)(stat)(-13)(+30)(syst) MeV. The product branching fraction is determined to be B(B(0)-> K(-/+)Z(+/-)(4430))xB(Z(+/-)(4430)->pi(+/-)psi')=(4.1 +/- 1.0(stat)+/- 1.4(syst))x10(-5), where Z(+/-)(4430) is used to denote the observed structure. The statistical significance of the observed peak is 6.5 sigma. These results are obtained from a 605 fb(-1) data sample that contains 657x10(6) B (B) over bar pairs collected near the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric energy e(+)e(-) collider.

DOI： 10.1103/PhysRevLett.100.142001

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Measurement of CP asymmetries and branching fractions in a time-dependent Dalitz analysis of B-0 ->(rho pi)(0) and a constraint on the quark mixing angle phi(2) 査読

A. Kusaka, C. C. Wang, I. Adachi, H. Aihara, K. Arinstein, V. Aulchenko, T. Aushev, A. M. Bakich, V. Balagura, E. Barberio, I. Bedny, K. Belous, U. Bitenc, A. Bondar, A. Bozek, M. Bracko, T. E. Browder, P. Chang, Y. Chao, A. Chen, W. T. Chen, B. G. Cheon, R. Chistov, I. -S. Cho, S. -K. Choi, Y. Choi, J. Dalseno, M. Dash, S. Eidelman, N. Gabyshev, B. Golob, J. Haba, K. Hara, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, Y. Hoshi, W. -S. Hou, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, D. H. Kah, J. H. Kang, H. Kawai, T. Kawasaki, H. Kichimi, H. O. Kim, S. K. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kumar, C. C. Kuo, A. Kuzmin, Y. -J. Kwon, J. S. Lee, M. J. Lee, S. E. Lee, T. Lesiak, A. Limosani, S. -W. Lin, Y. Liu, D. Liventsev, F. Mandl, A. Matyja, S. McOnie, T. Medvedeva, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, G. R. Moloney, E. Nakano, M. Nakao, S. Nishida, O. Nitoh, S. Noguchi, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, H. Ozaki, G. Pakhlova, C. W. Park, H. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, H. Sahoo, Y. Sakai, O. Schneider, C. Schwanda, A. J. Schwartz, K. Senyo, M. E. Sevior, M. Shapkin, C. P. Shen, H. Shibuya, B. Shwartz, J. B. Singh, A. Somov, S. Stanic, M. Staric, T. Sumiyoshi, S. Suzuki, S. Y. Suzuki, F. Takasaki, K. Tamai, N. Tamura, M. Tanaka, Y. Teramoto, I. Tikhomirov, K. Trabelsi, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, P. Urquijo, G. Varner, K. E. Varvell, K. Vervink, S. Villa, C. H. Wang, M. -Z. Wang, P. Wang, X. L. Wang, Y. Watanabe, E. Won, Y. Yamashita, Z. P. Zhang, V. Zhulanov, A. Zupanc, O. Zyukova

PHYSICAL REVIEW D 77 ( 7 ) 1 - 25 2008年4月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We present the results of a time-dependent Dalitz plot analysis of B-0 ->pi(+)pi(-)pi(0) decays based on a 414 fb(-1) data sample that contains 449x10(6)B (B) over bar pairs. The data were collected on the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric energy e(+)e(-) collider. Combining our analysis with information on charged B decay modes, we perform a full Dalitz and isospin analysis and obtain a constraint on the quark mixing angle phi(2), 68 degrees <phi(2)< 95 degrees at the 68.3% confidence level for the phi(2) solution consistent with the standard model. A large standard-model-disfavored region also remains. The branching fractions for the decay processes B-0 ->rho(+/-)(770)pi(-/+) and B-0 ->rho(0)(770)pi(0) are measured to be (22.6 +/- 1.1[stat]+/- 4.4[syst])x10(-6) and (3.0 +/- 0.5[stat]+/- 0.7[syst])x10(-6), respectively. These are the first branching fraction measurements of the process B-0 ->rho(770)pi with the lowest resonance rho(770) explicitly separated from the radial excitations.

DOI： 10.1103/PhysRevD.77.072001

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Improved measurement of time-dependent CP violation in B-0 -> J/psi pi(0) decays 査読

S. E. Lee, K. Miyabayashi, H. Aihara, T. Aushev, T. Aziz, A. M. Bakich, V. Balagura, E. Barberio, A. Bay, K. Belous, V. Bhardwaj, U. Bitenc, S. Blyth, A. Bondar, A. Bozek, M. Bracko, T. E. Browder, P. Chang, A. Chen, K. -F. Chen, B. G. Cheon, R. Chistov, I. -S. Cho, S. -K. Choi, Y. Choi, J. Dalseno, M. Dash, S. Eidelman, D. Epifanov, N. Gabyshev, H. Ha, J. Haba, K. Hara, T. Hara, H. Hayashii, M. Hazumi, D. Heffernan, T. Higuchi, Y. Hoshi, W. -S. Hou, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, D. H. Kah, J. H. Kang, S. U. Kataoka, H. Kawai, T. Kawasaki, H. J. Kim, S. K. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, R. Kumar, C. C. Kuo, A. Kuzmin, Y. -J. Kwon, J. S. Lee, M. J. Lee, T. Lesiak, S. -W. Lin, Y. Liu, D. Liventsev, S. McOnie, T. Medvedeva, W. Mitaroff, H. Miyata, R. Mizuk, T. Mori, E. Nakano, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, O. Nitoh, S. Noguchi, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Park, K. S. Park, R. Pestotnik, L. E. Piilonen, H. Sahoo, Y. Sakai, O. Schneider, A. J. Schwartz, A. Sekiya, K. Senyo, M. Shapkin, C. P. Shen, H. Shibuya, S. Shinomiya, J. -G. Shiu, B. Shwartz, J. B. Singh, A. Sokolov, A. Somov, S. Stanic, M. Staric, K. Sumisawa, T. Sumiyoshi, S. Suzuki, O. Tajima, F. Takasaki, K. Tamai, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, K. Trabelsi, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Ushiroda, Y. Usov, G. Varner, K. E. Varvell, S. Villa, C. C. Wang, C. H. Wang, P. Wang, X. L. Wang, Y. Watanabe, E. Won, A. Yamaguchi, Y. Yamashita, M. Yamauchi, C. Z. Yuan, Y. Yusa, C. C. Zhang, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc

PHYSICAL REVIEW D 77 ( 7 ) 1 - 6 2008年4月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report improved measurements of time-dependent CP violation parameters for B-0((B) over bar (0))-> J/psi pi(0) decay. This analysis is based on 535x10(6) B (B) over bar pairs accumulated at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. From the distribution of proper time intervals between the two B decays, we obtain the following CP violation parameters S-J/psi pi(0)=-0.65 +/- 0.21(stat)+/- 0.05(syst) and A(J/psi pi)(0)=+0.08 +/- 0.16(stat)+/- 0.05(syst),which are consistent with standard model expectations.

DOI： 10.1103/PhysRevD.77.071101

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Observation of anomalous Y(1S)pi(+)pi(-) and Y(2S)pi(+)pi(-) production near the Y(5S) resonance 査読

K. -F. Chen, W. -S. Hou, M. Shapkin, A. Sokolov, I. Adachi, H. Aihara, K. Arinstein, V. Aulchenko, T. Aushev, A. M. Bakich, V. Balagura, A. Bay, K. Belous, V. Bhardwaj, U. Bitenc, A. Bondar, A. Bozek, M. Bracko, J. Brodzicka, T. E. Browder, P. Chang, Y. Chao, A. Chen, W. T. Chen, R. Chistov, Y. Choi, J. Dalseno, M. Danilov, M. Dash, A. Drutskoy, S. Eidelman, N. Gabyshev, B. Golob, H. Ha, J. Haba, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, Y. Hoshi, Y. B. Hsiung, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, D. H. Kah, J. H. Kang, P. Kapusta, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, H. O. Kim, S. K. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kumar, C. C. Kuo, Y. -J. Kwon, J. S. Lange, J. S. Lee, M. J. Lee, T. Lesiak, A. Limosani, S. -W. Lin, Y. Liu, D. Liventsev, F. Mandl, S. McOnie, T. Medvedeva, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, G. R. Moloney, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, W. Ostrowicz, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Palka, C. W. Park, H. Park, K. S. Park, R. Pestotnik, L. E. Piilonen, Y. Sakai, O. Schneider, J. Schuemann, C. Schwanda, A. J. Schwartz, K. Senyo, M. E. Sevior, C. P. Shen, H. Shibuya, J. -G. Shiu, B. Shwartz, A. Somov, S. Stanic, M. Staric, T. Sumiyoshi, F. Takasaki, K. Tamai, M. Tanaka, G. N. Taylor, Y. Teramoto, K. Trabelsi, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Ushiroda, Y. Usov, G. Varner, K. Vervink, S. Villa, C. C. Wang, C. H. Wang, M. -Z. Wang, P. Wang, X. L. Wang, Y. Watanabe, R. Wedd, J. Wicht, E. Won, B. D. Yabsley, Y. Yamashita, M. Yamauchi, C. Z. Yuan, Y. Yusa, C. C. Zhang, Z. P. Zhang, A. Zupanc

PHYSICAL REVIEW LETTERS 100 ( 11 ) 1 - 6 2008年3月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report the first observation of e(+)e(-) -> Y(1S)pi(+)pi(-), Upsilon(2S)pi(+)pi(-), and first evidence for e(+)e(-) -> Y(3S)pi(+)pi(-), Y(1S)K(+)K(-), near the peak of the Y(5S) resonance at root s similar to 10.87 GeV. The results are based on a data sample of 21.7 fb(-1) collected with the Belle detector at the KEKB e(+)e(-) collider. Attributing the signals to the Upsilon(5S) resonance, the partial widths Gamma(Y(5S) -> Y(1S)pi(+)pi(-)) = 0.59 +/- 0.04(stat)+/- 0.09(syst) MeV and Gamma(Y(5S) -> Y(2S)pi(+)pi(-)) = 0.85 +/- 0.07(stat)+/- 0.16(syst) MeV are obtained from the observed cross sections. These values exceed by more than 2 orders of magnitude the previously measured partial widths for dipion transitions between lower Y resonances.

DOI： 10.1103/PhysRevLett.100.112001

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Observation of a new D-sJ meson in B+->(D)over-bar(0)D(0)K(+) decays 査読

J. Brodzicka, H. Palka, I. Adachi, H. Aihara, V. Aulchenko, A. M. Bakich, E. Barberio, A. Bay, I. Bedny, U. Bitenc, A. Bondar, M. Bracko, T. E. Browder, M. -C. Chang, P. Chang, A. Chen, W. T. Chen, B. G. Cheon, C. -C. Chiang, R. Chistov, I. -S. Cho, S. -K. Choi, Y. Choi, J. Dalseno, M. Danilov, M. Dash, A. Drutskoy, S. Eidelman, N. Gabyshev, A. Go, G. Gokhroo, B. Golob, H. Ha, J. Haba, T. Hara, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, Y. Hoshi, W. -S. Hou, H. J. Hyun, T. Iijima, K. Ikado, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, N. J. Joshi, D. H. Kah, J. H. Kang, H. Kawai, T. Kawasaki, H. Kichimi, H. O. Kim, S. K. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krokovny, R. Kumar, C. C. Kuo, Y. -J. Kwon, J. S. Lange, J. S. Lee, M. J. Lee, S. E. Lee, T. Lesiak, A. Limosani, D. Liventsev, F. Mandl, S. McOnie, T. Medvedeva, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, R. Mizuk, T. Mori, Y. Nagasaka, E. Nakano, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, S. Noguchi, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, H. Ozaki, P. Pakhlov, G. Pakhlova, C. W. Park, H. Park, R. Pestotnik, L. E. Pilionen, M. Rozanska, Y. Sakai, O. Schneider, R. Seidl, A. Sekiya, K. Senyo, M. E. Sevior, M. Shapkin, C. P. Shen, H. Shibuya, J. -G. Shiu, J. B. Singh, A. Sokolov, A. Somov, S. Stanic, M. Staric, T. Sumiyoshi, F. Takasaki, K. Tamai, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, P. Urquijo, G. Varner, K. Vervink, S. Villa, A. Vinokurova, C. C. Wang, C. H. Wang, M. -Z. Wang, P. Wang, X. L. Wang, Y. Watanabe, R. Wedd, E. Won, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, C. Z. Yuan, Y. Yusa, C. C. Zhang, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc, N. Zwahlen

PHYSICAL REVIEW LETTERS 100 ( 9 ) 1 - 6 2008年3月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report the observation of a new D-sJ meson produced in B+->(D) over bar D-0(sJ)->(D) over bar (DK+)-D-0-K-0. This state has a mass of M=2708 +/- 9(-10)(+11) MeV/c(2), a width Gamma=108 +/- 23(-31)(+36) MeV/c(2) and a 1(-) spin-parity. The statistical significance of this observation is 8.4 sigma. The results are based on an analysis of 449x10(6) B (B) over bar events collected at the Gamma(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider.

DOI： 10.1103/PhysRevLett.100.092001

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Difference in direct charge-parity violation between charged and neutral B meson decays 査読

S. -W. Lin, Y. Unno, W. -S. Hou, P. Chang, I. Adachi, H. Aihara, K. Akai, K. Arinstein, V. Aulchenko, T. Aushev, T. Aziz, A. M. Bakich, V. Balagura, E. Barberio, A. Bay, I. Bedny, U. Bitenc, A. Bondar, A. Bozek, M. Bracko, T. E. Browder, M. -C. Chang, Y. Chao, A. Chen, K. -F. Chen, W. T. Chen, B. G. Cheon, C. -C. Chiang, R. Chistov, I. -S. Cho, S. -K. Choi, Y. Choi, Y. K. Choi, S. Cole, J. Dalseno, M. Danilov, M. Dash, A. Drutskoy, S. Eidelman, D. Epifanov, S. Fratina, M. Fujikawa, K. Furukawa, N. Gabyshev, P. Goldenzweig, B. Golob, H. Ha, J. Haba, T. Hara, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, T. Hokuue, Y. Hoshi, Y. B. Hsiung, H. J. Hyun, T. Iijima, K. Ikado, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwabuchi, M. Iwasaki, Y. Iwasaki, D. H. Kah, H. Kaji, S. U. Kataoka, H. Kawai, T. Kawasaki, A. Kibayashi, H. Kichimi, E. Kikutani, H. J. Kim, S. K. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, Y. Kozakai, P. Krizan, P. Krokovny, R. Kumar, C. C. Kuo, A. Kuzmin, Y. -J. Kwon, M. J. Lee, S. E. Lee, T. Lesiak, J. Li, Y. Liu, D. Liventsev, F. Mandl, D. Marlow, S. McOnie, T. Medvedeva, T. Mimashi, W. Mitaroff, K. Miyabayashi, H. Miyake, Y. Miyazaki, R. Mizuk, T. Mori, T. T. Nakamura, E. Nakano, M. Nakao, H. Nakazawa, S. Nishida, O. Nitoh, S. Noguchi, T. Nozaki, S. Ogawa, Y. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, H. Ozaki, G. Pakhlova, C. W. Park, H. Park, L. S. Peak, R. Pestotnik, M. Peters, L. E. Piilonen, A. Poluektov, H. Sahoo, Y. Sakai, O. Schneider, J. Schuemann, A. J. Schwartz, R. Seidl, K. Senyo, M. E. Sevior, M. Shapkin, C. P. Shen, H. Shibuya, T. Shidara, S. Shinomiya, J. -G. Shiu, B. Shwartz, J. B. Singh, A. Sokolov, A. Somov, S. Stanic, M. Staric, K. Sumisawa, T. Sumiyoshi, S. Suzuki, O. Tajima, F. Takasaki, N. Tamura, M. Tanaka, M. Tawada, G. N. Taylor, Y. Teramoto, I. Tikhomirov, K. Trabelsi, S. Uehara, K. Ueno, T. Uglov, S. Uno, P. Urquijo, Y. Ushiroda, Y. Usov, G. Varner, K. E. Varvell, K. Vervink, S. Villa, C. C. Wang, C. H. Wang, M. -Z. Wang, Y. Watanabe, R. Wedd, J. Wicht, E. Won, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, M. Yoshida, C. Z. Yuan, Y. Yusa, C. C. Zhang, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc

NATURE 452 ( 7185 ) 332 - U3 2008年3月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：NATURE PUBLISHING GROUP

Equal amounts of matter and antimatter are predicted to have been produced in the Big Bang, but our observable Universe is clearly matter- dominated. One of the prerequisites(1) for understanding this elimination of antimatter is the nonconservation of charge- parity ( CP) symmetry. So far, two types of CP violation have been observed in the neutral K meson ( K-0) and B meson ( B-0) systems: CP violation involving the mixing(2) between K-0 and its antiparticle (K) over bar (0) ( and likewise(3,4) for B-0 and (B) over bar (0)), and direct CP violation in the decay of each meson(5-8). The observed effects for both types of CP violation are substantially larger for the B-0 meson system. However, they are still consistent with the standard model of particle physics, which has a unique source(9) of CP violation that is known to be too small(10) to account for the matter-dominated Universe. Here we report that the direct CP violation in charged B-+/- --> K-+/- pi(0) decay is different from that in the neutral B-0 counterpart. The direct CP- violating decay rate asymmetry, A(K)+/- (pi 0) ( that is, the difference between the number of observed B- --> K- pi(0) event versus B+ --> K+ pi(0) events, normalized to the sum of these events) is measured to be about +7%, with an uncertainty that is reduced by a factor of 1.7 from a previous measurement(7). However, the asymmetry A(K+/-) p(-/+) for B-0 --> K- pi(+) versus B-0 --> K+ pi(-) is at the -10% level(7,8). Although it is susceptible to strong interaction effects that need further clarification, this large deviation in direct CP violation between charged and neutral B meson decays could be an indication of new sources of CP violation - which would help to explain the dominance of matter in the Universe.

DOI： 10.1038/nature06827

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Observation of B(S)(0)->phi gamma and search for B(S)(0)->gamma gamma decays at Belle 査読

J. Wicht, I. Adachi, H. Aihara, K. Arinstein, V. Aulchenko, T. Aushev, A. M. Bakich, V. Balagura, A. Bay, K. Belous, V. Bhardwaj, U. Bitenc, A. Bondar, A. Bozek, M. Bracko, T. E. Browder, P. Chang, Y. Chao, A. Chen, K. -F. Chen, W. T. Chen, B. G. Cheon, R. Chistov, I. -S. Cho, Y. Choi, J. Dalseno, M. Dash, A. Drutskoy, S. Eidelman, N. Gabyshev, P. Goldenzweig, B. Golob, J. Haba, K. Hayasaka, M. Hazumi, D. Heffernan, Y. Hoshi, W. -S. Hou, Y. B. Hsiung, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, Y. Iwasaki, D. H. Kah, H. Kaji, J. H. Kang, P. Kapusta, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, H. O. Kim, S. K. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, R. Kumar, C. C. Kuo, Y. -J. Kwon, J. S. Lange, J. Lee, J. S. Lee, S. E. Lee, T. Lesiak, A. Limosani, S. -W. Lin, Y. Liu, D. Liventsev, F. Mandl, S. McOnie, T. Medvedeva, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, D. Mohapatra, G. R. Moloney, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Palka, C. W. Park, H. Park, K. S. Park, R. Pestotnik, L. E. Piilonen, Y. Sakai, O. Schneider, J. Schuemann, A. J. Schwartz, K. Senyo, M. E. Sevior, M. Shapkin, H. Shibuya, J. -G. Shiu, B. Shwartz, J. B. Singh, A. Somov, S. Stanic, M. Staric, K. Sumisawa, T. Sumiyoshi, F. Takasaki, K. Tamai, M. Tanaka, G. N. Taylor, Y. Teramoto, K. Trabelsi, T. Tsuboyama, S. Uehara, K. Ueno, Y. Unno, S. Uno, Y. Ushiroda, Y. Usov, G. Varner, K. Vervink, S. Villa, C. H. Wang, P. Wang, X. L. Wang, Y. Watanabe, E. Won, B. D. Yabsley, Y. Yamashita, M. Yamauchi, Y. Yusa, Z. P. Zhang, V. Zhilich, A. Zupanc, N. Zwahlen

PHYSICAL REVIEW LETTERS 100 ( 12 ) 1 - 6 2008年3月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We search for the radiative penguin decays B(s)(0)->phi gamma and B(s)(0)->gamma gamma in a 23.6 fb(-1) data sample collected at the Upsilon(5S) resonance with the Belle detector at the KEKB e(+)e(-) asymmetric-energy collider. We observe for the first time a radiative penguin decay of the B(s)(0) meson in the B(s)(0)->phi gamma mode and we measure B(B(s)(0)->phi gamma)=(57(-15)(+18)(stat)(-11)(+12)(syst))x10(-6). No significant B(s)(0)->gamma gamma signal is observed and we set a 90% confidence level upper limit of B(B(s)(0)->gamma gamma)< 8.7x10(-6).

DOI： 10.1103/PhysRevLett.100.121801

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Measurement of time-dependent CP-violating parameters in B(0)-> K(S)(0)K(S)(0) decays 査読

Y. Nakahama, K. Sumisawa, I. Adachi, H. Aihara, T. Aushev, A. M. Bakich, V. Balagura, E. Barberio, I. Bedny, K. Belous, U. Bitenc, A. Bondar, A. Bozek, M. Bracko, T. E. Browder, P. Chang, Y. Chao, A. Chen, K. -F. Chen, W. T. Chen, B. G. Cheon, R. Chistov, I. -S. Cho, Y. Choi, J. Dalseno, M. Dash, A. Drutskoy, S. Eidelman, N. Gabyshev, B. Golob, H. Ha, J. Haba, K. Hara, T. Hara, K. Hayasaka, M. Hazumi, D. Heffernan, Y. Hoshi, Y. B. Hsiung, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, D. H. Kah, H. Kaji, J. H. Kang, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, H. O. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kumar, C. C. Kuo, A. Kuzmin, Y. -J. Kwon, J. Lee, J. S. Lee, M. J. Lee, S. E. Lee, T. Lesiak, A. Limosani, S. -W. Lin, D. Liventsev, F. Mandl, S. McOnie, T. Medvedeva, W. Mitaroff, K. Miyabayashi, H. Miyata, Y. Miyazaki, R. Mizuk, G. R. Moloney, E. Nakano, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, H. Ozaki, P. Pakhlov, G. Pakhlova, C. W. Park, H. Park, K. S. Park, R. Pestotnik, L. E. Piilonen, H. Sahoo, Y. Sakai, O. Schneider, C. Schwanda, A. J. Schwartz, R. Seidl, M. E. Sevior, M. Shapkin, C. P. Shen, H. Shibuya, J. -G. Shiu, B. Shwartz, J. B. Singh, A. Somov, S. Stanic, M. Staric, T. Sumiyoshi, O. Tajima, F. Takasaki, N. Tamura, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, K. Trabelsi, T. Tsuboyama, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, Y. Ushiroda, G. Varner, K. Vervink, C. H. Wang, P. Wang, X. L. Wang, Y. Watanabe, E. Won, Y. Yamashita, Y. Yusa, Z. P. Zhang, A. Zupanc, O. Zyukova

PHYSICAL REVIEW LETTERS 100 ( 12 ) 1 - 5 2008年3月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report a measurement of the CP-violating parameters in B(0)-> K(S)(0)K(S)(0) decays based on a data sample of 657x10(6) B (B) over bar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. In this Letter, one neutral B meson is fully reconstructed in the B(0)-> K(S)(0)K(S)(0) decay mode, and the flavor of the accompanying B meson is identified by its decay products. The CP-violating parameters are measured from the asymmetry in the distributions of the proper-time interval between the two B decays: S(KS)(0)K(S)(0)=-0.38(-0.77)(+0.69)(stat)+/- 0.09(syst) and A(KS)(0)K(S)(0)=-0.38 +/- 0.38(stat)+/- 0.05(syst).

DOI： 10.1103/PhysRevLett.100.121601

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Observation of D(s1)(2536)(+) -> D(+)pi(-)K(+) and angular decomposition of D(s1)(2536)(+)-> D*(+)K(S)(0) 査読

V. Balagura, I. Adachi, H. Aihara, K. Arinstein, V. Aulchenko, T. Aushev, A. M. Bakich, E. Barberio, A. Bay, K. Belous, V. Bhardwaj, U. Bitenc, A. Bondar, A. Bozek, M. Bracko, J. Brodzicka, T. E. Browder, M. -C. Chang, Y. Chao, A. Chen, W. T. Chen, B. G. Cheon, R. Chistov, I. -S. Cho, Y. Choi, J. Dalseno, M. Danilov, A. Drutskoy, S. Eidelman, D. Epifanov, N. Gabyshev, A. Garmash, B. Golob, H. Ha, J. Haba, T. Hara, N. C. Hastings, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, Y. Hoshi, W. -S. Hou, H. J. Hyun, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, D. H. Kah, H. Kaji, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, H. O. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, C. C. Kuo, A. Kuzmin, Y. -J. Kwon, J. S. Lange, M. J. Lee, S. E. Lee, T. Lesiak, A. Limosani, S. -W. Lin, Y. Liu, D. Liventsev, F. Mandl, S. McOnie, T. Medvedeva, W. Mitaroff, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, D. Mohapatra, G. R. Moloney, Y. Nagasaka, E. Nakano, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, W. Ostrowicz, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Palka, C. W. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, Y. Sakai, O. Schneider, K. Senyo, M. Shapkin, C. P. Shen, H. Shibuya, J. -G. Shiu, A. Somov, S. Stanic, M. Staric, T. Sumiyoshi, K. Tamai, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, K. Vervink, S. Villa, A. Vinokurova, C. C. Wang, C. H. Wang, M. -Z. Wang, P. Wang, X. L. Wang, Y. Watanabe, E. Won, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc, O. Zyukova

PHYSICAL REVIEW D 77 ( 3 ) 1 - 10 2008年2月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

Using 462 fb(-1) of e(+)e(-) annihilation data recorded by the Belle detector, we report the first observation of the decay D(s1)(2536)(+)-> D(+)pi(-)K(+). The ratio of branching fractions B(D(s1)(2536)(+)-> D(+)pi(-)K(+))/B(D(s1)(2536)(+)-> D*(+)K(0)) is measured to be (3.27 +/- 0.18 +/- 0.37)%. We also study the angular distributions in the D(s1)(2536)(+)-> D*(+)K(S)(0) decay and measure the ratio of D- and S-wave amplitudes. The S-wave dominates, with a partial width of Gamma(S)/Gamma(total)=0.72 +/- 0.05 +/- 0.01.

DOI： 10.1103/PhysRevD.77.032001

Web of Science

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Search for lepton flavor violating tau decays into three leptons 査読

Y. Miyazaki e, al, The Belle Collaboration

Physics Letters B 660 ( 3 ) 154 - 160 2008年2月

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1016/j.physletb.2007.12.046

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Observation of the psi(4415) -> D(D)over-bar(2)(*)(2460) decay using initial-state radiation 査読

G. Pakhlova, I. Adachi, H. Aihara, K. Arinstein, V. Aulchenko, T. Aushev, A. M. Bakich, V. Balagura, E. Barberio, I. Bedny, K. Belous, U. Bitenc, A. Bondar, M. Bracko, J. Brodzicka, T. E. Browder, A. Chen, W. T. Chen, B. G. Cheon, C. -C. Chiang, R. Chistov, I. -S. Cho, Y. Choi, J. Dalseno, M. Danilov, M. Dash, A. Drutskoy, S. Eidelman, D. Epifanov, N. Gabyshev, B. Golob, H. Ha, J. Haba, K. Hayasaka, M. Hazumi, D. Heffernan, Y. Hoshi, W. -S. Hou, Y. B. Hsiung, H. J. Hyun, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, N. J. Joshi, D. H. Kah, J. H. Kang, T. Kawasaki, A. Kibayashi, H. Kichimi, H. J. Kim, H. O. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kumar, C. C. Kuo, A. Kuzmin, Y. -J. Kwon, J. S. Lange, M. J. Lee, S. E. Lee, T. Lesiak, S. -W. Lin, D. Liventsev, F. Mandl, D. Marlow, S. McOnie, T. Medvedeva, H. Miyake, R. Mizuk, D. Mohapatra, G. R. Moloney, Y. Nagasaka, E. Nakano, M. Nakao, H. Nakazawa, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, H. Ozaki, P. Pakhlov, H. Park, K. S. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, A. Poluektov, Y. Sakai, O. Schneider, C. Schwanda, K. Senyo, M. Shapkin, C. P. Shen, H. Shibuya, J. -G. Shiu, B. Shwartz, J. B. Singh, A. Somov, S. Stanic, T. Sumiyoshi, F. Takasaki, K. Tamai, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, Y. Usov, G. Varner, A. Vinokurova, C. H. Wang, M. -Z. Wang, P. Wang, X. L. Wang, Y. Watanabe, E. Won, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, C. Z. Yuan, C. C. Zhang, L. M. Zhang, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc

PHYSICAL REVIEW LETTERS 100 ( 6 ) 1 - 6 2008年2月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report measurements of the exclusive cross section for e(+)e(-)-> D(0)D(-)pi(+) over the center-of-mass energy range 4.0 GeV to 5.0 GeV with initial-state radiation and the first observation of the decay psi(4415)-> D(0)D(-)pi(+). From a study of the resonant substructure in psi(4415) decay we conclude that the psi(4415)-> D(0)D(-)pi(+) decay is dominated by psi(4415)-> D (D) over bar (*)(2)(2460). We obtain B(psi(4415)-> D(0)D(-)pi(+)(nonresonant))/B(psi(4415)-> D (D) over bar (*)(2)(2460)-> D(0)D(-)pi(+))< 0.22 at 90% C.L. The analysis is based on a data sample collected with the Belle detector with an integrated luminosity of 673 fb(-1).

DOI： 10.1103/PhysRevLett.100.062001

Web of Science

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Observation of e(+)e(-)-> K(+)K(-)J/psi via initial-state radiation at Belle 査読

C. Z. Yuan, C. P. Shen, P. Wang, X. L. Wang, I. Adachi, H. Aihara, K. Arinstein, V. Aulchenko, T. Aushev, A. M. Bakich, V. Balagura, E. Barberio, K. Belous, U. Bitenc, A. Bondar, M. Bracko, J. Brodzicka, T. E. Browder, Y. Chao, A. Chen, W. T. Chen, B. G. Cheon, R. Chistov, I. -S. Cho, Y. Choi, J. Dalseno, M. Danilov, A. Das, M. Dash, S. Eidelman, D. Epifanov, N. Gabyshev, B. Golob, H. Ha, J. Haba, K. Hayasaka, M. Hazumi, D. Heffernan, T. Hokuue, Y. Hoshi, W. -S. Hou, H. J. Hyun, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, Y. Iwasaki, D. H. Kah, J. H. Kang, H. Kawai, T. Kawasaki, H. Kichimi, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kumar, C. C. Kuo, A. Kuzmin, Y. -J. Kwon, M. J. Lee, S. E. Lee, T. Lesiak, S. -W. Lin, D. Liventsev, F. Mandl, A. Matyja, S. McOnie, T. Medvedeva, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, D. Mohapatra, G. R. Moloney, Y. Nagasaka, M. Nakao, S. Nishida, O. Nitoh, S. Noguchi, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, P. Pakhlov, G. Pakhlova, C. W. Park, H. Park, L. S. Peak, L. E. Piilonen, H. Sahoo, Y. Sakai, O. Schneider, J. Schuemann, K. Senyo, M. E. Sevior, M. Shapkin, H. Shibuya, J. -G. Shiu, B. Shwartz, J. B. Singh, A. Somov, S. Stanic, M. Staric, T. Sumiyoshi, F. Takasaki, K. Tamai, M. Tanaka, Y. Teramoto, I. Tikhomirov, S. Uehara, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, K. Vervink, S. Villa, C. C. Wang, C. H. Wang, Y. Watanabe, E. Won, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, C. C. Zhang, Z. P. Zhang, A. Zupanc, O. Zyukova

PHYSICAL REVIEW D 77 ( 1 ) 1 - 6 2008年1月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

The process e(+)e(-)-> K(+)K(-)J/psi is observed for the first time via initial-state radiation. The cross section of e(+)e(-)-> K(+)K(-)J/psi for center-of-mass energies between threshold and 6.0 GeV is measured using 673 fb(-1) of data collected with the Belle detector on and off the Upsilon(4S) resonance. No significant signal for Y(4260)-> K(+)K(-)J/psi is observed, and we determine B(Y(4260)-> K(+)K(-)J/psi)Gamma(Y(4260)-> e(+)e(-))< 1.2 eV/c(2) at a 90% confidence level. We also find evidence for e(+)e(-)-> K(S)(0)K(S)(0)J/psi in the same data sample.

DOI： 10.1103/PhysRevD.77.011105

Web of Science

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Time-dependent CP-violating asymmetry in B(0)->rho(0)gamma decays 査読

Y. Ushiroda, K. Sumisawa, N. Taniguchi, I. Adachi, H. Aihara, K. Arinstein, T. Aushev, S. Bahinipati, A. M. Bakich, V. Balagura, E. Barberio, K. Belous, U. Bitenc, A. Bondar, A. Bozek, M. Bracko, T. E. Browder, P. Chang, Y. Chao, A. Chen, W. T. Chen, B. G. Cheon, R. Chistov, I.-S. Cho, Y. Choi, J. Dalseno, M. Dash, S. Eidelman, D. Epifanov, N. Gabyshev, B. Golob, H. Ha, J. Haba, K. Hara, T. Hara, K. Hayasaka, M. Hazumi, D. Heffernan, T. Hokuue, Y. Hoshi, W.-S. Hou, H. J. Hyun, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, Y. Iwasaki, D. H. Kah, J. H. Kang, H. Kawai, T. Kawasaki, H. Kichimi, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kumar, C. C. Kuo, A. Kuzmin, Y.-J. Kwon, M. J. Lee, S. E. Lee, T. Lesiak, S.-W. Lin, D. Liventsev, F. Mandl, S. McOnie, T. Medvedeva, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, D. Mohapatra, G. R. Moloney, Y. Nagasaka, M. Nakao, H. Nakazawa, S. Nishida, O. Nitoh, S. Noguchi, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, P. Pakhlov, G. Pakhlov, C. W. Park, H. Park, L. S. Peak, L. E. Piilonen, H. Sahoo, Y. Sakai, O. Schneider, J. Schuemann, A. J. Schwartz, K. Senyo, M. E. Sevior, M. Shapkin, C. P. Shen, H. Shibuya, J.-G. Shiu, B. Shwartz, J. B. Singh, A. Sokolov, A. Somov, S. Stanic, M. Stanic, T. Sumiyoshi, O. Tajima, F. Takasaki, K. Tamai, M. Tanaka, Y. Teramoto, I. Tikhomirov, K. Trabelsi, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, K. Vervink, S. Villa, C. C. Wang, C. H. Wang, M.-Z. Wang, P. Wang, X. L. Wang, Y. Watanabe, E. Won, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, Z. P. Zhang, A. Zupanc, O. Zyukova

PHYSICAL REVIEW LETTERS 100 ( 2 ) 1 - 5 2008年1月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report the first measurement of CP-violation parameters in B(0)->rho(0)gamma decays based on a data sample of 657x10(6)B (B) over bar pairs collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We obtain the time-dependent and direct CP-violating parameters, S(rho)(0)gamma=-0.83 +/- 0.65(stat)+/- 0.18(syst) and A(rho)(0)gamma=-0.44 +/- 0.49(stat)+/- 0.14(syst), respectively.

DOI： 10.1103/PhysRevLett.100.021602

Web of Science

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Measurement of the near-threshold e(+)e(-)-> D(D)over-bar cross section using initial-state radiation 査読

G. Pakhlova, I. Adachi, H. Aihara, K. Arinstein, V. Aulchenko, T. Aushev, A. M. Bakich, V. Balagura, A. Bay, I. Bedny, U. Bitenc, A. Bondar, A. Bozek, M. Bracko, J. Brodzicka, T. E. Browder, P. Chang, A. Chen, W. T. Chen, B. G. Cheon, R. Chistov, S. -K. Choi, Y. Choi, J. Dalseno, M. Danilov, A. Drutskoy, S. Eidelman, D. Epifanov, N. Gabyshev, B. Golob, K. Hayasaka, H. Hayashii, D. Heffernan, Y. Hoshi, W. -S. Hou, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, Y. Iwasaki, D. H. Kah, J. H. Kang, N. Katayama, H. Kawai, T. Kawasaki, A. Kibayashi, H. Kichimi, H. O. Kim, S. K. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krokovny, R. Kumar, C. C. Kuo, A. Kuzmin, Y. -J. Kwon, J. S. Lange, J. S. Lee, M. J. Lee, T. Lesiak, A. Limosani, S. -W. Lin, Y. Liu, D. Liventsev, F. Mandl, A. Matyja, S. McOnie, T. Medvedeva, W. Mitaroff, K. Miyabayashi, H. Miyata, Y. Miyazaki, R. Mizuk, G. R. Moloney, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, H. Ozaki, P. Pakhlov, C. W. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, A. Poluektov, H. Sahoo, Y. Sakai, O. Schneider, A. J. Schwartz, R. Seidl, K. Senyo, M. Shapkin, V. Shebalin, H. Shibuya, J. -G. Shiu, B. Shwartz, J. B. Singh, A. Sokolov, A. Somov, S. Stanic, M. Staric, T. Sumiyoshi, S. Y. Suzuki, F. Takasaki, K. Tamai, Y. Teramoto, I. Tikhomirov, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, Y. Usov, G. Varner, K. Vervink, S. Villa, A. Vinokurova, C. H. Wang, P. Wang, X. L. Wang, Y. Watanabe, B. D. Yabsley, C. Z. Yuan, Y. Yusa, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc, O. Zyukova

PHYSICAL REVIEW D 77 ( 1 ) 1 - 5 2008年1月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report measurements of the exclusive cross section for e(+)e(-)-> D (D) over bar, where D=D(0) or D(+), in the center-of-mass energy range from the D (D) over bar threshold to 5 GeV with initial-state radiation. The analysis is based on a data sample collected with the Belle detector with an integrated luminosity of 673 fb(-1).

DOI： 10.1103/PhysRevD.77.011103

Web of Science

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Study of TeV neutrinos with upward showering muons in Super-Kamiokande 査読

Desai, S., Abe, K., Hayato, Y., Iida, K., Ishihara, K., Kameda, J., Koshio, Y., Minamino, A., Mitsuda, C., Miura, M., Moriyama, S., Nakahata, M., Obayashi, Y., Ogawa, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takeuchi, Y., Ueshima, K., Watanabe, H., Yamada, S., Higuchi, I., Ishihara, C., Ishitsuka, M., Kajita, T., Kaneyuki, K., Mitsuka, G., Nakayama, S., Nishino, H., Okumura, K., Saji, C., Takenaga, Y., Clark, S.T., Dufour, F., Kearns, E., Likhoded, S., Raaf, J.L., Stone, J.L., Sulak, L.R., Wang, W., Goldhaber, M., Casper, D., Cravens, J.P., Dunmore, J., Kropp, W.R., Liu, D.W., Mine, S., Regis, C., Smy, M.B., Sobel, H.W., Vagins, M.R., Ganezer, K.S., Hartfiel, B., Hill, J., Keig, W.E., Jang, J.S., Jeong, I.S., Kim, J.Y., Lim, I.T., Fechner, M., Scholberg, K., Tanimoto, N., Walter, C.W., Wendell, R., Tasaka, S., Guillian, G., Learned, J.G., Matsuno, S., Messier, M.D., Ichikawa, A.K., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nitta, K., Oyama, Y., Totsuka, Y., Suzuki, A.T., Hasegawa, M., Hiraide, K., Kato, I., Maesaka, H., Nakaya, T., Nishikawa, K., Sasaki, T., Sato, H., Yamamoto, S., Yokoyama, M., Haines, T.J., Dazeley, S., Hatakeyama, S., Svoboda, R., Swanson, M., Clough, A., Gran, R., Habig, A., Fukuda, Y., Sato, T., Itow, Y., Koike, T., Tanaka, T., Jung, C.K., Kato, T., Kobayashi, K., McGrew, C., Sarrat, A., Terri, R., Yanagisawa, C., Tamura, N., Idehara, Y., Sakuda, M., Sugihara, M., Kuno, Y., Yoshida, M., Kim, S.B., Yang, B.S., Yoo, J., Ishizuka, T., Okazawa, H., Choi, Y., Seo, H.K., Gando, Y., Hasegawa, T., Inoue, K., Furuse, Y., Ishii, H., Nishijima, K., Ishino, H., Watanabe, Y., Koshiba, M., Kielczewska, D., Berns, H., Shiraishi, K.K., Thrane, E., Washburn, K., Wilkes, R.J.

Astropart.Phys. 29 ( 1 ) 42 - 54 2008年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1016/j.astropartphys.2007.11.005

Web of Science

arXiv

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Solar neutrino measurements in Super-Kamiokande-II 査読

Cravens, J.P., Abe, K., Iida, T., Ishihara, K., Kameda, J., Koshio, Y., Minamino, A., Miura, M., Moriyama, S., Nakahata, Masayuki, Nakayama, S., Obayashi, Y., Ogawa, H., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takeuchi, Yasuo, Ueshima, K., Watanabe, H., Yamada, S., Higuchi, I., Ishihara, C., Ishitsuka, M., Kajita, Takaaki, Kaneyuki, K., Mitsuka, G., Nishino, H., Okumura, K., Saji, Chouji, Takenaga, Y., Clark, George S., Dufour, F., Kearns, Edward Thomas, Likhoded, S., Litos, M., Raaf, Jennifer L., Stone, J.L., Sulak, Lawrence R., Wang, W., Goldhaber, M., Casper, David William, Dunmore, J., Kropp, William R., Liu, D.W., Mine, S., Regis, C., Smy, M.B., Sobel, Henry W., Vagins, M.R., Ganezer, K.S., Hill, J., Keig, W.E., Jang, J.S., Kim, J.Y., Lim, I.T., Fechner, Maximilien, Scholberg, K., Tanimoto, Naho, Walter, Christopher William, Wendell, Roger, Ellsworth, Robert W., Tasaka, S., Guillian, G., Learned, John Gregory, Matsuno, Shigenobu, Messier, Mark D., Watanabe, Y., Hayato, Y., Ichikawa, A.K., Ishida, Taku, Ishii, T., Iwashita, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nitta, K., Oyama, Y., Totsuka, Y., Suzuki, A.T., Hasegawa, M., Hiraide, Katsuki, Maesaka, H., Nakaya, Tsuyoshi, Nishikawa, K., Sasaki, T., Sato, H., Yamamoto, Sukeyasu Steven, Yokoyama, Masashi, Haines, T.J., Dazeley, S., Hatakeyama, S., Svoboda, Robert Charles, Sullivan, G.W., Turcan, D., Habig, Alec Thomas, Fukuda, Y., Sato, T., Itow, Yoshitaka, Koike, T., Tanaka, T., Jung, Chang Kee, Kato, T., Kobayashi, K., Malek, Matthew Samir, McGrew, Clark Duane, Sarrat, Antony, Terri, R., Yanagisawa, C., Tamura, N., Idehara, Y., Ikeda, M., Sakuda, Makoto, Sugihara, M., Kuno, Y., Yoshida, M., Kim, S.B., Yang, B.S., Yoo, J., Ishizuka, T., Okazawa, H., Choi, Y., Seo, H.K., Gando, Y., Hasegawa, T., Inoue, Kaiki Taro, Furuse, Y., Ishii, H., Nishijima, K., Ishino, H., Koshiba, M., Chen, S., Deng, Z., Liu, Y., Kielczewska, D., Berns, Hans-Gerd, Gran, Richard W., Shiraishi, K.K., Stachyra, A., Thrane, E., Washburn, K., Wilkes, R.Jeffrey

Phys.Rev.D 78 ( 032002 ) 032002 - 032002 2008年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevD.78.032002

arXiv

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Precise measurement of hadronic τ-decays in modes with η mesons

K. Abe, I. Adachi, H. Aihara, K. Arinstein, T. Aso, V. Aulchenko, T. Aushev, T. Aushev, T. Aziz, S. Bahinipati, A. M. Bakich, V. Balagura, Y. Ban, S. Banerjee, E. Barberio, A. Bay, I. Bedny, K. Belous, V. Bhardwaj, U. Bitenc, S. Blyth, A. Bondar, A. Bozek, M. Bracko, M. Bracko, J. Brodzicka, T. E. Browder, M. C. Chang, P. Chang, Y. Chao, A. Chen, K. F. Chen, W. T. Chen, B. G. Cheon, C. C. Chiang, R. Chistov, I. S. Cho, S. K. Choi, Y. Choi, Y. K. Choi, S. Cole, J. Dalseno, M. Danilov, A. Das, M. Dash, J. Dragic, A. Drutskoy, S. Eidelman, D. Epifanov, S. Fratina, H. Fujii, M. Fujikawa, N. Gabyshev, A. Garmash, A. Go, G. Gokhroo, P. Goldenzweig, B. Golob, B. Golob, M. Grosse Perdekamp, M. Grosse Perdekamp, H. Guler, H. Ha, J. Haba, K. Hara, T. Hara, Y. Hasegawa, N. C. Hastings, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, T. Higuchi, L. Hinz, H. Hoedlmoser, T. Hokuue, Y. Horii, Y. Hoshi, K. Hoshina, S. Hou, W. S. Hou, Y. B. Hsiung, H. J. Hyun, Y. Igarashi, T. Iijima, K. Ikado, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwabuchi, M. Iwasaki, Y. Iwasaki, C. Jacoby, N. J. Joshi, M. Kaga, D. H. Kah, H. Kaji, S. Kajiwara, H. Kakuno

23rd International Symposium on Lepton-Photon Interactions at High Energy, LP 2007 2007年12月

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We have measured branching fractions of hadronic τdecays involving an η meson using 485 fb-1 of data collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. We obtain the following branching fractions: B(τ - → K-ην) = (1.62 ± 0.05 ± 0.09) × 10-4, B(τ - → K-η0π=ηντ ) = (4.7 ± 1.1 ± 0.4) × 10-5, B(τ - → π-π0ηντ ) = (1.39 ± 0.03 ± 0.07) × 10-3, and B(τ - → K-ην7tau; ) = (1.13 ±0.19 ± 0.07) ×10-4 improving the accuracy compared to the best previous measurements by factors of six, eight, four and four, respectively.

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Status and upgrade plans of the Belle silicon vertex detector 査読

H. Aihara, T. Arakawa, Y. Asano, T. Aso, A. Bakich, M. Barbero, T. Browder, M. C. Chang, Y. Chao, K. F. Chen, S. Chidzik, A. Chouvikov, Y. K. Choi, A. Das, J. Dalseno, S. Fratina, M. Friedl, Y. Fujiyama, J. Haba, K. Hara, T. Hara, B. Harrop, K. Hayashi, M. Hazumi, D. Heffemani, T. Higuchi, T. Hirakawa, C. Irmler, H. Ishino, N. K. Joshi, S. Kajiwara, H. Kakuno, T. Kameshima, T. Kawasaki, A. Kibayashi, Y. J. Kim, S. Koike, S. Korpar, P. Krian, H. Kurashiro, A. Kusaka, D. Marlow, H. Miyake, G. R. Moloney, Y. Nakahamas, Z. Natkaniec, S. Okuno, S. Ono, W. Ostrowicz, H. Ozaki, L. Peak, M. Pernicka, M. Rosen, M. Rozanska, N. Sato, S. Schmid, J. Sch mann, S. Stanic, H. Steininger, K. Sumisawa, O. Tajima, T. Takahashi, N. Tamura, M. Tanaka, N. Tani, G. N. Taylor, K. Trabelsi, T. Tsuboyama, K. Uchida, K. Ueno, Y. Ushiroda, G. Varner, K. Varvell, Y. S. Velikzhanin, C. C. Wang, M. Z. Wang, M. Watanabe, Y. Watanabe, H. Yamamoto, Y. Yamashita, T. Ziegler

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 582 ( 3 ) 709 - 713 2007年12月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

The second generation of Belle Silicon Vertex Detector (SVD) has been efficiently operated for more than three years. With increasing beam-induced background, a degradation of the detector performance is expected. To avoid such a difficulty, we are planing a next upgrade, the third generation of the SVD. Currently, its design is almost finalized. (c) 2007 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.nima.2007.07.057

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Analysis method for search for B-0 -> 1(+)1(-) at Belle experiment 査読

S. Ono, H. Ishino, H. Togasaki

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES 40 ( 2 ) 418 - 421 2007年12月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

The Belle experiment is performed at High Energy Accelerator Research Organization (KEK) at Tsukuba, Japan. A large number of B mesons are generated at the KEKB e(+) e(-) asymmetric-energy collider. We report on the status of search for decays B-0 -> e(+)e(-) and B-0 -> mu(+)mu(-) through analysis of the data collected by Belle detector. (C) 2007 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.physe.2007.06.064

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R&D of a pixel sensor based on 0.15 mu m fully depleted SOI technology 査読

Toru Tsuboyama, Yasuo Arai, Koichi Fukuda, Kazuhiko Hara, Hirokazu Hayashi, Masashi Hazumi, Jiro Ida, Hirokazu Ikeda, Yoichi Ikegami, Hirokazu Ishino, Takeo Kawasaki, Takashi Kohriki, Hirotaka Komatsubara, Elena Martin, Hideki Miyake, Ai Mochizuki, Morifumi Ohno, Yuuji Saegusa, Hiro Tajima, Osamu Tajima, Tomiaki Takahashi, Susumu Terada, Yoshinobu Unno, Yutaka Ushiroda, Gary Varner

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 582 ( 3 ) 861 - 865 2007年12月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

Development of a monolithic pixel detector based on Sol (silicon on insulator) technology was started at KEK in 2005. The substrate of the Sol wafer is used as a radiation sensor. At end of 2005, we submitted several test-structure group (TEG) chips for the 150 run, fully depleted CMOS process. The TEG designs and preliminary results are presented. (c) 2007 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.nima.2007.07.111

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Observation of B-0 -> D*-tau(+)nu(tau) decay at belle 査読

A. Matyja, M. Rozanska, I. Adachi, H. Aihara, V. Aulchenko, T. Aushev, S. Bahinipati, A. M. Bakich, V. Balagura, E. Barberio, I. Bedny, V. Bhardwaj, U. Bitenc, A. Bondar, A. Bozek, M. Bracko, J. Brodzicka, T. E. Browder, M. -C. Chang, P. Chang, A. Chen, K. -F. Chen, B. G. Cheon, R. Chistov, I. -S. Cho, Y. Choi, Y. K. Choi, J. Dalseno, M. Dash, S. Eidelman, S. Fratina, N. Gabyshev, B. Golob, H. Ha, J. Haba, T. Hara, K. Hayasaka, M. Hazumi, D. Heffernan, T. Hokuue, Y. Hoshi, W. -S. Hou, H. J. Hyun, T. Iijima, K. Ikado, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, Y. Iwasaki, H. Kaji, S. Kajiwara, J. H. Kang, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, Y. J. Kim, K. Kinoshita, S. Korpar, Y. Kozakai, P. Krizan, P. Krokovny, R. Kumar, C. C. Kuo, Y. -J. Kwon, J. S. Lee, S. E. Lee, T. Lesiak, S. -W. Lin, Y. Liu, D. Liventsev, F. Mandl, S. McOnie, T. Medvedeva, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, T. Mori, Y. Nagasaka, I. Nakamura, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Palka, H. Park, K. S. Park, R. Pestotnik, L. E. Piilonen, Y. Sakai, O. Schneider, J. Schumann, C. Schwanda, A. J. Schwartz, K. Senyo, M. E. Sevior, M. Shapkin, C. P. Shen, H. Shibuya, S. Shinomiya, J. -G. Shiu, J. B. Singh, A. Sokolov, A. Somov, S. Stanic, M. Staric, K. Sumisawa, T. Sumiyoshi, O. Tajima, F. Takasaki, M. Tanaka, G. N. Taylor, Y. Teramoto, K. Trabelsi S. Uehara, Y. Unno, S. Uno, P. Urquijo, Y. Ushiroda, G. Varner, K. E. Varvell, K. Vervink, S. Villa, C. C. Wang, C. H. Wang, P. Wang, Y. Watanabe, E. Won, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, Z. P. Zhang, A. Zupanc

PHYSICAL REVIEW LETTERS 99 ( 19 ) 1 - 5 2007年11月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report an observation of the decay B-0 -> D*-tau(+)nu(tau) in a data sample containing 535x10(6) B (B) over bar pairs collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We find a signal with a significance of 5.2 sigma and measure the branching fraction B(B-0 -> D*-tau(+)nu(tau))=(2.02(-0.37)(+0.40)(stat)+/- 0.37(syst))%. This is the first observation of an exclusive B decay with a b -> c tau nu(tau) transition.

DOI： 10.1103/PhysRevLett.99.191807

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Search for B -> h((*))nu(nu)over-bar decays at Belle 査読

K. -F. Chen, I. Adachi, H. Aihara, V. Aulchenko, T. Aushev, S. Bahinipati, A. M. Bakich, V. Balagura, E. Barberio, A. Bay, K. Belous, U. Bitenc, A. Bondar, A. Bozek, M. Bracko, J. Brodzicka, T. E. Browder, M. -C. Chang, P. Chang, Y. Chao, A. Chen, B. G. Cheon, C. -C. Chiang, I. -S. Cho, Y. Choi, Y. K. Choi, S. Cole, M. Danilov, M. Dash, A. Drutskoy, S. Eidelman, S. Fratina, N. Gabyshev, B. Golob, H. Ha, J. Haba, T. Hara, K. Hayasaka, M. Hazumi, D. Heffernan, T. Hokuue, Y. Hoshi, W. -S. Hou, Y. B. Hsiung, H. J. Hyun, T. Iijima, K. Ikado, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, N. J. Joshi, S. Kajiwara, J. H. Kang, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kumar, C. C. Kuo, A. Kuzmin, Y. -J. Kwon, J. S. Lee, S. E. Lee, T. Lesiak, S. -W. Lin, Y. Liu, D. Liventsev, F. Mandl, D. Marlow, A. Matyja, S. McOnie, T. Medvedeva, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, Y. Nagasaka, I. Nakamura, M. Nakao, S. Nishida, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Park, K. S. Park, R. Pestotnik, L. E. Piilonen, Y. Sakai, O. Schneider, J. Schuemann, C. Schwanda, A. J. Schwartz, R. Seidl, K. Senyo, M. E. Sevior, M. Shapkin, C. P. Shen, H. Shibuya, S. Shinomiya, J. -G. Shiu, B. Shwartz, J. B. Singh, A. Sokolov, A. Somov, S. Stanic, M. Staric, K. Sumisawa, T. Sumiyoshi, O. Tajima, F. Takasaki, N. Tamura, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, K. Trabelsi, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, K. E. Varvell, K. Vervink, S. Villa, A. Vinokurova, C. C. Wang, C. H. Wang, M. -Z. Wang, P. Wang, Y. Watanabe, R. Wedd, E. Won, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, C. C. Zhang, Z. P. Zhang, V. Zhilich, A. Zupanc

PHYSICAL REVIEW LETTERS 99 ( 22 ) 1 - 5 2007年11月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We present a search for the rare decays B -> h((*))nu(nu) over bar, where h((*)) stands for a light meson. A data sample of 535x10(6) B (B) over bar pairs collected with the Belle detector at the KEKB e(+)e(-) collider is used. Signal candidates are required to have an accompanying B meson fully reconstructed in a hadronic mode and signal side particles consistent with a single h((*)) meson. No significant signal is observed and we set upper limits on the branching fractions at 90% confidence level. The limits on B-0 -> K-*0 nu(nu) over bar and B+-> K+nu(nu) over bar decays are more stringent than the previous constraints, while the first searches for B-0 -> K-0 nu(nu) over bar, pi(0)nu(nu) over bar, rho(0)nu(nu) over bar, phi nu(nu) over bar and B+-> K*+nu(nu) over bar, rho(+)nu(nu) over bar are reported.

DOI： 10.1103/PhysRevLett.99.221802

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Search for the CP-Violating Decays Upsilon(4S)->(BB0)-B-0 -> J/psi K-S(0)+J/psi(eta(c))K-S(0) 査読

O. Tajima, M. Hazumi, I. Adachi, H. Aihara, V. Aulchenko, T. Aushev, A. M. Bakich, E. Barberio, A. Bay, I. Bedny, V. Bhardwaj, U. Bitenc, A. Bozek, M. Bracko, T. E. Browder, M. -C. Chang, P. Chang, A. Chen, K. -F. Chen, W. T. Chen, B. G. Cheon, C. -C. Chiang, R. Chistov, I. -S. Cho, Y. Choi, Y. K. Choi, J. Dalseno, M. Danilov, M. Dash, A. Drutskoy, S. Eidelman, D. Epifanov, A. Go, G. Gokhroo, B. Golob, J. Haba, K. Hayasaka, H. Hayashii, D. Heffernan, T. Hokuue, Y. Hoshi, W. -S. Hou, Y. B. Hsiung, H. J. Hyun, T. Iijima, K. Ikado, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, N. J. Joshi, D. H. Kah, H. Kaji, J. H. Kang, S. U. Kataoka, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, H. O. Kim, S. K. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kumar, C. C. Kuo, Y. -J. Kwon, J. S. Lange, J. S. Lee, M. J. Lee, S. E. Lee, T. Lesiak, J. Li, S. -W. Lin, D. Liventsev, F. Mandl, D. Marlow, S. McOnie, T. Medvedeva, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, R. Mizuk, D. Mohapatra, Y. Nagasaka, E. Nakano, M. Nakao, S. Nishida, O. Nitoh, S. Noguchi, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, H. Ozaki, P. Pakhlov, G. Pakhlova, C. W. Park, H. Park, R. Pestotnik, L. E. Piilonen, H. Sahoo, Y. Sakai, O. Schneider, A. Sekiya, K. Senyo, M. E. Sevior, M. Shapkin, C. P. Shen, H. Shibuya, J. -G. Shiu, B. Shwartz, J. B. Singh, A. Sokolov, A. Somov, S. Stanic, M. Staric, K. Sumisawa, T. Sumiyoshi, F. Takasaki, M. Tanaka, G. N. Taylor, Y. Teramoto, K. Trabelsi, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, K. E. Varvell, K. Vervink, S. Villa, A. Vinokurova, C. C. Wang, C. H. Wang, M. -Z. Wang, P. Wang, Y. Watanabe, R. Wedd, E. Won, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, C. Z. Yuan, Y. Yusa, C. C. Zhang, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc

PHYSICAL REVIEW LETTERS 99 ( 21 ) 1 - 5 2007年11月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report the first search for CP-violating decays of the Y(4S) using a data sample that contains 535 x 10(6) Y(4S) mesons with the Belle detector at the KEKB asymmetric-energy e(+) e(-) collider. A partial reconstruction technique is employed to enhance the signal sensitivity. No significant signals were observed. We obtain an upper limit of 4 x 10(-7) at the 90% confidence level for the branching fractions of the CP violating modes, Y(4S) -> B-0(B) over bar (0) -> J/psi K-S(0) + J/psi(eta K-c)(S)0. Extrapolating the result, we find that an observation with 5 sigma significance is expected with a 30 ab(-1) data sample, which is within the reach of a future super B factory.

DOI： 10.1103/PhysRevLett.99.211601

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Measurements of time-dependent CP violation in B-0 ->omega K-S(0), f(0)(980)K-S(0), K-S(0)pi(0) and (K+K-KS0) decays 査読

Y. Chao, K. -F. Chen, H. Miyake, O. Tajima, K. Trabelsi, K. Abe, K. Abe, I. Adachi, H. Aihara, D. Anipko, A. M. Bakich, E. Barberio, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, M. Bracko, T. E. Browder, M. -C. Chang, P. Chang, A. Chen, W. T. Chen, B. G. Cheon, R. Chistov, Y. Choi, Y. K. Choi, S. Cole, J. Dalseno, M. Danilov, M. Dash, J. Dragic, A. Drutskoy, S. Eidelman, S. Fratina, N. Gabyshev, B. Golob, H. Ha, J. Haba, K. Hara, T. Hara, N. C. Hastings, H. Hayashii, M. Hazumi, D. Heffernan, T. Higuchi, T. Hokuue, Y. Hoshi, W. -S. Hou, Y. B. Hsiung, T. Iijima, K. Ikado, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, H. Kaji, J. H. Kang, P. Kapusta, H. Kawai, T. Kawasaki, H. J. Kim, H. O. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kulasiri, R. Kumar, C. C. Kuo, A. Kuzmin, Y. -J. Kwon, M. J. Lee, T. Lesiak, A. Limosani, S. -W. Lin, D. Liventsev, T. Matsumoto, S. McOnie, K. Miyabayashi, H. Miyata, Y. Miyazaki, R. Mizuk, D. Mohapatra, G. R. Moloney, Y. Nakahama, E. Nakano, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, S. Ogawa, S. Okuno, S. L. Olsen, Y. Onuki, H. Ozaki, P. Pakhlov, G. Pakhlova, C. W. Park, R. Pestotnik, L. E. Piilonen, Y. Sakai, N. Satoyama, T. Schietinger, O. Schneider, A. J. Schwartz, R. Seidl, K. Senyo, M. E. Sevior, M. Shapkin, H. Shibuya, J. B. Singh, A. Somov, N. Soni, S. Stanic, M. Staric, H. Stoeck, K. Sumisawa, T. Sumiyoshi, S. Suzuki, F. Takasaki, K. Tamai, M. Tanaka, G. N. Taylor, Y. Teramoto, X. C. Tian, I. Tikhomirov, T. Tsukamoto, S. Uehara, K. Ueno, Y. Unno, S. Uno, Y. Ushiroda, Y. Usov, G. Varner, K. E. Varvell, S. Villa, A. Vinokurova, C. H. Wang, Y. Watanabe, E. Won, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, Y. Yusa, V. Zhilich, V. Zhulanov, A. Zupanc

PHYSICAL REVIEW D 76 ( 9 ) 1 - 7 2007年11月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We present measurements of time-dependent CP asymmetries in B-0 ->omega K-S(0), f(0)(980)K-S(0), K-S(0)pi(0) and (K+K-KS0) decays based on a sample of 535x10(6) B (B) over bar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB energy-asymmetric e(+)e(-) collider. One neutral B meson is fully reconstructed in one of the specified decay channels, and the flavor of the accompanying B meson is identified from its decay products. CP-violation parameters for each of the decay modes are obtained from the asymmetries in the distributions of the proper-time intervals between the two B decays.

DOI： 10.1103/PhysRevD.76.091103

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Measurement of branching fraction and time-dependent CP asymmetry parameters in B-0 ->(D*+D*-KS0) decays 査読

J. Dalseno, I. Adachi, H. Aihara, T. Aushev, A. M. Bakich, V. Balagura, A. Bay, U. Bitenc, I. Bizjak, A. Bozek, M. Bracko, T. E. Browder, Y. Chao, A. Chen, B. G. Cheon, R. Chistov, I. -S. Cho, Y. Choi, Y. K. Choi, M. Danilov, M. Dash, A. Drutskoy, S. Eidelman, A. Go, H. Ha, K. Hayasaka, M. Hazumi, D. Heffernan, T. Hokuue, H. J. Hyun, K. Inami, A. Ishikawa, H. Ishino, M. Iwasaki, Y. Iwasaki, N. J. Joshi, D. H. Kah, J. H. Kang, P. Kapusta, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, Y. J. Kim, K. Kinoshita, P. Krizan, P. Krokovny, R. Kumar, C. C. Kuo, A. Kuzmin, Y. -J. Kwon, J. S. Lee, S. E. Lee, T. Lesiak, J. Li, A. Limosani, S. -W. Lin, D. Liventsev, F. Mandl, T. Matsumoto, S. McOnie, T. Medvedeva, W. Mitaroff, H. Miyake, H. Miyata, G. R. Moloney, E. Nakano, M. Nakao, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, Y. Onuki, W. Ostrowicz, H. Ozaki, P. Pakhlov, G. Pakhlova, C. W. Park, H. Park, K. S. Park, R. Pestotnik, L. E. Piilonen, H. Sahoo, Y. Sakai, O. Schneider, J. Schuemann, R. Seidl, A. Sekiya, K. Senyo, M. E. Sevior, M. Shapkin, H. Shibuya, J. B. Singh, A. Sokolov, A. Somov, S. Stanic, M. Staric, H. Stoeck, K. Sumisawa, T. Sumiyoshi, F. Takasaki, M. Tanaka, G. N. Taylor, Y. Teramoto, X. C. Tian, T. Tsukamoto, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, P. Urquijo, G. Varner, S. Villa, A. Vinokurova, C. C. Wang, C. H. Wang, Y. Watanabe, R. Wedd, E. Won, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, Z. P. Zhang, V. Zhilich, A. Zupanc

PHYSICAL REVIEW D 76 ( 7 ) 1 - 9 2007年10月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We present a measurement of the branching fraction and time-dependent CP violation parameters for B-0 ->(D*+D*-KS0) decays. These results are obtained from a 414 fb(-1) data sample that contains 449x10(6) B (B) over bar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We obtain the branching fraction, B(B-0 ->(D*+D*-KS0))=[3.4 +/- 0.4(stat)+/- 0.7(syst)]x10(-3), which is in agreement with the current world average. We also obtain an upper limit on the product branching fraction for a possible two-body decay, B(B-0 -> D-s1(+)(2536)D*-)B(D-s1(+)(2536)->(D*+KS0))< 7.1x10(-4) (90% CL). In the traditional 2-parameter time-dependent CP analysis, we measure the CP violation parameters, A(CP)=-0.01(-0.28)(+0.28)(stat)+/- 0.09(syst), Dsin2 phi(1)=0.06(-0.44)(+0.45)(stat)+/- 0.06(syst). No evidence for either mixing-induced or direct CP violation is found. In a 3-parameter fit sensitive to cos2 phi(1) performed in the half-Dalitz spaces, s(-)<= s(+) and s(-)> s(+), where s(+/-)equivalent to m(2)((DKS0)-K-*+/-), we extract the CP violation parameters, J(c)/J(0)=0.60(-0.28)(+0.25)(stat)+/- 0.08(syst), 2J(s1)/J(0)sin2 phi(1)=-0.17(-0.42)(+0.42)(stat)+/- 0.09(syst), 2J(s2)/J(0)cos2 phi(1)=-0.23(-0.41)(+0.43)(stat)+/- 0.13(syst). A large value of J(c)/J(0) would indicate a significant resonant contribution from a broad unknown D-s(**+) state. Although the sign of the factor, 2J(s2)/J(0), can be deduced from theory, no conclusion can be drawn regarding the sign of cos2 phi(1) given the errors.

DOI： 10.1103/PhysRevD.76.072004

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Observation of two resonant structures in e(+)e(-)->pi(+)pi(-)psi(2S) via initial-state radiation at Belle 査読

X. L. Wang, C. Z. Yuan, C. P. Shen, P. Wang, I. Adachi, H. Aihara, K. Arinstein, T. Aushev, A. M. Bakich, E. Barberio, I. Bedny, V. Bhardwaj, U. Bitenc, S. Blyth, A. Bondar, A. Bozek, M. Bracko, J. Brodzicka, T. E. Browder, P. Chang, A. Chen, K.-F. Chen, B. G. Cheon, C.-C. Chiang, R. Chistov, I.-S. Cho, S.-K. Choi, Y. Choi, J. Dalseno, M. Danilov, M. Dash, A. Drutskoy, S. Eidelman, D. Epifanov, N. Gabyshev, A. Go, G. Gokhroo, H. Ha, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, Y. Hoshi, W.-S. Hou, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, Y. Iwasaki, D. H. Kah, J. H. Kang, H. Kawai, T. Kawasaki, H. Kichimi, H. O. Kim, S. K. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kumar, C. C. Kuo, A. Kuzmin, J. S. Lange, J. S. Lee, M. J. Lee, S. E. Lee, T. Lesiak, A. Limosani, S.-W. Lin, Y. Liu, D. Liventsev, F. Mandl, S. McOnie, T. Medvedeva, K. Miyabayashi, H. Miyake, H. Miyata, R. Mizuk, T. Mori, E. Nakano, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, O. Nitoh, S. Noguchi, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Palka, C. W. Park, H. Park, K. S. Park, R. Pestotnik, L. E. Piilonen, A. Poluektov, H. Sahoo, Y. Sakai, O. Schneider, A. Sekiya, M. E. Sevior, M. Shapkin, H. Shibuya, J.-G. Shiu, B. Shwartz, J. B. Singh, A. Sokolov, A. Somov, S. Stanic, M. Staric, T. Sumiyoshi, F. Takasaki, K. Tamai, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, P. Urquijo, G. Varner, S. Villa, A. Vinokurova, C. C. Wang, C. H. Wang, Y. Watanabe, E. Won, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, C. C. Zhang, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc

PHYSICAL REVIEW LETTERS 99 ( 14 ) 1 - 5 2007年10月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

The cross section for e(+)e(-)->pi(+)pi(-)psi(2S) between threshold and root s=5.5 GeV is measured using 673 fb(-1) of data on and off the Upsilon(4S) resonance collected with the Belle detector at KEKB. Two resonant structures are observed in the pi(+)pi(-)psi(2S) invariant-mass distribution, one at 4361 +/- 9 +/- 9 MeV/c(2) with a width of 74 +/- 15 +/- 10 MeV/c(2), and another at 4664 +/- 11 +/- 5 MeV/c(2) with a width of 48 +/- 15 +/- 3 MeV/c(2), if the mass spectrum is parametrized with the coherent sum of two Breit-Wigner functions. These values do not match those of any of the known charmonium states.

DOI： 10.1103/PhysRevLett.99.142002

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Measurements of branching fractions for b -> K pi and b ->pi pi decays 査読

S.-W. Lin, P. Chang, K. Abe, K. Abe, I. Adachi, H. Aihara, D. Anipko, V. Aulchenko, T. Aushev, S. Bahinipati, A. M. Bakich, E. Barberio, I. Bedny, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, A. Bozek, M. Bracko, T. E. Browder, M.-C. Chang, Y. Chao, A. Chen, K.-F. Chen, W. T. Chen, B. G. Cheon, R. Chistov, S.-K. Choi, Y. Choi, Y. K. Choi, J. Dalseno, M. Dash, J. Dragic, A. Drutskoy, S. Eidelman, S. Fratina, N. Gabyshev, A. Garmash, A. Go, B. Golob, H. Ha, J. Haba, T. Hara, H. Hayashii, M. Hazumi, D. Heffernan, T. Hokuue, Y. Hoshi, W.-S. Hou, Y. B. Hsiung, T. Iijima, K. Ikado, A. Imoto, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, H. Kaji, P. Kapusta, S. U. Kataoka, H. Kawai, T. Kawasaki, H. Kichimi, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kulasiri, R. Kumar, A. Kuzmin, Y.-J. Kwon, M. J. Lee, T. Lesiak, D. Liventsev, J. MacNaughton, F. Mandl, T. Matsumoto, S. McOnie, T. Medvedeva, W. Mitaroff, H. Miyake, H. Miyata, Y. Miyazaki, G. R. Moloney, E. Nakano, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, Y. Onuki, H. Ozaki, P. Pakhlov, G. Pakhlova, C. W. Park, R. Pestotnik, L. E. Piilonen, H. Sahoo, Y. Sakai, N. Satoyama, T. Schietinger, O. Schneider, J. Schuemann, A. J. Schwartz, K. Senyo, M. E. Sevior, M. Shapkin, H. Shibuya, B. Shwartz, J. B. Singh, A. Somov, N. Soni, S. Stanic, M. Staric, H. Stoeck, K. Sumisawa, T. Sumiyoshi, S. Suzuki, S. Y. Suzuki, F. Takasaki, K. Tamai, M. Tanaka, G. N. Taylor, Y. Teramoto, X. C. Tian, I. Tikhomirov, T. Tsukamoto, S. Uehara, K. Ueno, Y. Unno, S. Uno, Y. Ushiroda, G. Varner, K. E. Varvell, S. Villa, C. C. Wang, C. H. Wang, M.-Z. Wang, Y. Watanabe, J. Wicht, E. Won, Q. L. Xie, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, Y. Yusa, C. C. Zhang, Z. P. Zhang, A. Zupanc

PHYSICAL REVIEW LETTERS 99 ( 12 ) 1 - 5 2007年9月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report measurements of branching fractions for B -> K pi and B ->pi pi decays based on a data sample of 449x10(6) B (B) over bar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We also measure the ratios of partial widths for B -> K pi decays, namely R-c equivalent to 2 Gamma(B+-> K+pi(0))/Gamma(B+-> K-0 pi(+))=1.08 +/- 0.06 +/- 0.08 and R-n equivalent to Gamma(B-0 -> K+pi(-))/2 Gamma(B-0 -> K-0 pi(0))=1.08 +/- 0.08 +/- 0.08, where the first and the second errors are statistical and systematic, respectively. These ratios are sensitive to enhanced electroweak penguin contributions from new physics; the new measurements are, however, consistent with standard model expectations.

DOI： 10.1103/PhysRevLett.99.121601

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Measurement of Einstein-Podolsky-Rosen-type flavor entanglement in Y(4S) -> B-0(B)over-bar0 decays 査読

A. Go, A. Bay, K. Abe, H. Aihara, D. Anipko, V. Aulchenko, T. Aushev, A. M. Bakich, E. Barberio, K. Belous, U. Bitenc, I. Bizjak, S. Blyth, A. Bozek, M. Bracko, T. E. Browder, P. Chang, Y. Chao, A. Chen, K.-F. Chen, W. T. Chen, B. G. Cheon, R. Chistov, Y. Choi, Y. K. Choi, S. Cole, J. Dalseno, M. Danilov, M. Dash, A. Drutskoy, S. Eidelman, D. Epifanov, S. Fratina, N. Gabyshev, T. Gershon, G. Gokhroo, B. Golob, A. Gorisek, H. Ha, N. C. Hastings, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, T. Hokuue, Y. Hoshi, S. Hou, W.-S. Hou, T. Iijima, K. Ikado, A. Imoto, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, C. Jacoby, J. H. Kang, N. Katayama, T. Kawasaki, H. R. Khan, H. Kichimi, H. J. Kim, S. K. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kulasiri, R. Kumar, C. C. Kuo, A. Kuzmin, Y.-J. Kwon, J. S. Lange, J. Lee, M. J. Lee, T. Lesiak, A. Limosani, S.-W. Lin, Y. Liu, D. Liventsev, T. Matsumoto, A. Matyja, S. McOnie, W. Mitaroff, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, T. Mori, E. Nakano, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. L. Olsen, Y. Onuki, P. Pakhlov, G. Pakhlova, H. Palka, C. W. Park, H. Park, L. S. Peak, R. Pestotnik, M. Peters, L. E. Piilonen, H. Sahoo, Y. Sakai, N. Satoyama, T. Schietinger, O. Schneider, J. Schumann, A. J. Schwartz, R. Seidl, K. Senyo, M. Shapkin, H. Shibuya, B. Shwartz, J. B. Singh, A. Somov, N. Soni, S. Stanic, M. Staric, H. Stoeck, T. Sumiyoshi, F. Takasaki, M. Tanaka, G. N. Taylor, Y. Teramoto, X. C. Tian, I. Tikhomirov, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, S. Uehara, T. Uglov, K. Ueno, Y. Unno, S. Uno, G. Varner, S. Villa, C. C. Wang, C. H. Wang, M.-Z. Wang, Y. Watanabe, J. Wicht, E. Won, Q. L. Xie, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, Z. P. Zhang, V. Zhilich, A. Zupanc

PHYSICAL REVIEW LETTERS 99 ( 13 ) 1 - 6 2007年9月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

The neutral B meson pair produced at the Y(4S) should exhibit a nonlocal correlation of the type discussed by Einstein, Podolsky, and Rosen. We measure this correlation using the time-dependent flavor asymmetry of semileptonic B-0 decays, which we compare with predictions from quantum mechanics and two local realistic models. The data are consistent with quantum mechanics, and inconsistent with the other models. Assuming that some B pairs disentangle to produce B-0 and (B) over tilde (0) with definite flavor, we find a decoherent fraction of 0.029 +/- 0.057, consistent with no decoherence.

DOI： 10.1103/PhysRevLett.99.131802

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Measurement of D-0-(D)over-bar(0) mixing parameters in D-0 -> K-s pi(+)pi(-) decays 査読

L. M. Zhang, Z. P. Zhang, I. Adachi, H. Aihara, V. Aulchenko, T. Aushev, A. M. Bakich, V. Balagura, E. Barberio, A. Bay, K. Belous, U. Bitenc, A. Bondar, A. Bozek, M. Bracko, J. Brodzicka, T. E. Browder, P. Chang, Y. Chao, A. Chen, K.-F. Chen, W. T. Chen, B. G. Cheon, C.-C. Chiang, I.-S. Cho, Y. Choi, Y. K. Choi, J. Dalseno, M. Danilov, M. Dash, A. Drutskoy, S. Eidelman, D. Epifanov, S. Fratina, N. Gabyshev, G. Gokhroo, B. Golob, H. Ha, J. Haba, T. Hara, N. C. Hastings, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, T. Hokuue, Y. Hoshi, W.-S. Hou, Y. B. Hsiung, H. J. Hyun, T. Iijima, K. Ikado, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, N. J. Joshi, D. H. Kah, H. Kaji, S. Kajiwara, J. H. Kang, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, H. O. Kim, S. K. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kumar, C. C. Kuo, A. Kuzmin, Y.-J. Kwon, J. S. Lee, M. J. Lee, S. E. Lee, T. Lesiak, J. Li, A. Limosani, S.-W. Lin, Y. Liu, D. Liventsev, T. Matsumoto, A. Matyja, S. McOnie, T. Medvedeva, W. Mitaroff, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, Y. Nagasaka, I. Nakamura, E. Nakano, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, Y. Onuki, W. Ostrowicz, H. Ozaki, P. Pakhlov, G. Pakhlova, C. W. Park, H. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, A. Poluektov, H. Sahoo, Y. Sakai, O. Schneider, J. Schumann, C. Schwanda, A. J. Schwartz, R. Seidl, K. Senyo, M. E. Sevior, M. Shapkin, H. Shibuya, S. Shinomiya, J.-G. Shiu, B. Shwartz, J. B. Singh, A. Sokolov, A. Somov, N. Soni, S. Stanic, M. Staric, H. Stoeck, K. Sumisawa, T. Sumiyoshi, S. Suzuki, O. Tajima, F. Takasaki, K. Tamai, N. Tamura, M. Tanaka, G. N. Taylor, Y. Teramoto, X. C. Tian, I. Tikhomirov, T. Tsuboyama, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, K. Vervink, S. Villa, A. Vinokurova, C. H. Wang, M.-Z. Wang, P. Wang, Y. Watanabe, E. Won, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, C. Z. Yuan, C. C. Zhang, V. Zhilich, A. Zupanc

PHYSICAL REVIEW LETTERS 99 ( 13 ) 1 - 6 2007年9月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report a measurement of D-0-(D) over bar (0) mixing parameters in D-0 -> K-S(0)pi(+)pi(-) decays using a time-dependent Dalitz-plot analysis. We first assume CP conservation and subsequently allow for CP violation. The results are based on 540 fb(-1) of data accumulated with the Belle detector at the KEKB e(+)e(-) collider. Assuming negligible CP violation, we measure the mixing parameters x=(0.80 +/- 0.29(-0.07-0.14)(+0.09+0.10))% and y=(0.33 +/- 0.24(-0.12-0.08)(+0.08+0.06))%, where the errors are statistical, experimental systematic, and systematic due to the Dalitz decay model, respectively. Allowing for CP violation, we obtain the CP-violating parameters |q/p|=0.86(-0.29-0.03)(+0.30+0.06)+/- 0.08 and arg(q/p)=(-14(-18-3-4)(+16+5+2))degrees.

DOI： 10.1103/PhysRevLett.99.131803

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Evaluation of OKISOI technology 査読

Y. Ikegami, Y. Arai, K. Hara, M. Hazumi, H. Ikeda, H. Ishino, T. Kohrikia, H. Miyake, A. Mochizuki, S. Terada, T. Tsuboyama, Y. Unno

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 579 ( 2 ) 706 - 711 2007年9月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

The silicon-on-insulator (SOI) CMOS technology has a number of advantages over the standard bulk CMOS technology, such as no latch-up effect, high speed and low power. The fully depleted SOI (FD-SOI) technology provided by OKI Electric Industry Co., Ltd. is realizing the full features of the advantages with lowest junction capacitance. Test element group (TEG) structures of transistors were fabricated and irradiated with protons. The first results are presented. (c) 2007 Published by Elsevier B.V.

DOI： 10.1016/j.nima.2007.05.272

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Improved measurement of CP-violating parameters in B ->rho(+)rho(-) decays 査読

A. Somov, A. J. Schwartz, I. Adachi, H. Aihara, D. Anipko, V. Aulchenko, T. Aushev, A. M. Bakich, I. Bedny, U. Bitenc, I. Bizjak, A. Bondar, M. Bracko, T. E. Browder, M.-C. Chang, Y. Chao, A. Chen, K.-F. Chen, W. T. Chen, B. G. Cheon, R. Chistov, I.-S. Cho, Y. Choi, Y. K. Choi, S. Cole, J. Dalseno, M. Dash, J. Dragic, A. Drutskoy, S. Eidelman, S. Fratina, G. Gokhroo, B. Golob, H. Ha, J. Haba, T. Hara, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, T. Hokuue, Y. Hoshi, W.-S. Hou, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, N. Joshi, D. H. Kah, J. H. Kang, N. Katayama, H. Kichimi, H. O. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kulasiri, R. Kumar, C. C. Kuo, A. Kuzmin, Y.-J. Kwon, J. S. Lee, M. J. Lee, S. E. Lee, T. Lesiak, A. Limosani, S.-W. Lin, D. Marlow, T. Matsumoto, S. McOnie, T. Medvedeva, W. Mitaroff, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, D. Mohapatra, G. R. Moloney, M. Nakao, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, Y. Onuki, H. Ozaki, P. Pakhlov, G. Pakhlova, C. W. Park, R. Pestotnik, L. E. Piilonen, H. Sahoo, Y. Sakai, O. Schneider, J. Schuemann, K. Senyo, M. Shapkin, C. P. Shen, H. Shibuya, B. Shwartz, M. Staric, H. Stoeck, K. Sumisawa, T. Sumiyoshi, F. Takasaki, N. Tamura, M. Tanaka, Y. Teramoto, X. C. Tian, K. Trabelsi, T. Tsukamoto, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, K. E. Varvell, S. Villa, A. Vinokurova, C. C. Wang, C. H. Wang, M.-Z. Wang, P. Wang, Y. Watanabe, E. Won, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, Z. P. Zhang, A. Zupanc

PHYSICAL REVIEW D 76 ( 1 ) 1 - 7 2007年7月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We present a measurement of the CP-violating asymmetry in B-0 ->rho(+)rho(-) decays using 535x10(6) B (B) over bar pairs collected with the Belle detector at the KEKB e(+)e(-) collider. We measure CP-violating coefficients A=0.16 +/- 0.21(stat)+/- 0.08(syst) and S=0.19 +/- 0.30(stat)+/- 0.08(syst). These values are used to determine the unitarity triangle angle phi(2) using an isospin analysis; the solution consistent with the standard model lies in the range 54 degrees <phi(2)< 113 degrees at the 90% confidence level.

DOI： 10.1103/PhysRevD.76.011104

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Study of (B)over-bar(0)-> D-0 pi(+)pi(-) decays 査読

A. Kuzmin, K. Abe, I. Adachi, H. Aihara, D. Anipko, K. Arinstein, V. Aulchenko, T. Aushev, S. Bahinipati, A. M. Bakich, V. Balagura, E. Barberio, M. Barbero, A. Bay, I. Bedny, K. Belous, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, A. Bozek, M. Bracko, T. E. Browder, M.-C. Chang, Y. Chao, A. Chen, K.-F. Chen, W. T. Chen, B. G. Cheon, R. Chistov, Y. Choi, Y. K. Choi, J. Dalseno, M. Dash, A. Drutskoy, S. Eidelman, D. Epifanov, N. Gabyshev, A. Garmash, T. Gershon, A. Go, G. Gokhroo, B. Golob, H. Ha, J. Haba, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, T. Hokuue, Y. Hoshi, S. Hou, W.-S. Hou, Y. B. Hsiung, T. Iijima, K. Ikado, A. Imoto, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, J. H. Kang, P. Kapusta, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, Y. J. Kim, K. Kinoshita, P. Krizan, P. Krokovny, R. Kulasiri, R. Kumar, C. C. Kuo, Y.-J. Kwon, S. E. Lee, T. Lesiak, S.-W. Lin, G. Majumder, F. Mandl, T. Matsumoto, S. McOnie, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, G. R. Moloney, Y. Nagasaka, E. Nakano, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, S. Noguchi, T. Ohshima, S. Okuno, S. L. Olsen, Y. Onuki, P. Pakhlov, G. Pakhlova, H. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, A. Poluektov, H. Sahoo, Y. Sakai, N. Satoyama, T. Schietinger, O. Schneider, J. Schuemann, C. Schwanda, A. J. Schwartz, K. Senyo, M. Shapkin, H. Shibuya, B. Shwartz, V. Sidorov, A. Sokolov, A. Somov, S. Stanic, M. Staric, H. Stoeck, K. Sumisawa, T. Sumiyoshi, S. Y. Suzuki, F. Takasaki, K. Tamai, N. Tamura, M. Tanaka, G. N. Taylor, Y. Teramoto, X. C. Tian, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, S. Uehara, T. Uglov, K. Ueno, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, K. E. Varvell, S. Villa, C. H. Wang, M.-Z. Wang, Y. Watanabe, E. Won, C.-H. Wu, Q. L. Xie, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, L. M. Zhang, Z. P. Zhang, V. Zhilich, A. Zupanc

PHYSICAL REVIEW D 76 ( 1 ) 1 - 11 2007年7月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report the results of a study of neutral B meson decays to the D-0 pi(+)pi(-) final state, where the D-0 is fully reconstructed. The results are obtained from an event sample containing 388x10(6) B (B) over bar -meson pairs collected in the Belle experiment at the KEKB e(+)e(-) collider. The total branching fraction of the three-body decay B((B) over bar (0)-> D-0 pi(+)pi(-))=(8.4 +/- 0.4(stat)+/- 0.8(syst))x10(-4) has been measured. The intermediate resonant structure of these three-body decays has been studied. From a Dalitz plot analysis we have obtained the product of the branching fractions for D-2(*+) and D-0(*+) production: B((B) over bar (0)-> D-2(*+)pi(-))xB(D-2(*+)-> D-0 pi(+))=(2.15 +/- 0.17(stat)+/- 0.29(syst)+/- 0.12(mod))x10(-4), and B((B) over bar (0)-> D-0(*+)pi(-))xB(D-0(*+)-> D-0 pi(+))=(0.60 +/- 0.13(stat)+/- 0.15(syst)+/- 0.22(mod))x10(-4). This is the first observation of the (B) over bar (0)-> D-0(*+)pi(-) decay. The (B) over bar (0)-> D-0 rho(0) and D(0)f(2) branching fractions are measured to be: B((B) over bar (0)-> D-0 rho(0))=(3.19 +/- 0.20(stat)+/- 0.24(syst)+/- 0.38(mod))x10(-4), and B((B) over bar (0)-> D(0)f(2))=(1.20 +/- 0.18(stat)+/- 0.21(syst)+/- 0.32(mod))x10(-4).

DOI： 10.1103/PhysRevD.76.012006

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Measurements of exclusive B-s(0) decays at the Upsilon(5S) resonance 査読

A. Drutskoy, K. Abe, I. Adachi, H. Aihara, D. Anipko, A. M. Bakich, E. Barberio, I. Bedny, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, M. Bracko, T. E. Browder, M.-C. Chang, P. Chang, Y. Chao, A. Chen, K.-F. Chen, W. T. Chen, B. G. Cheon, R. Chistov, Y. Choi, J. Dalseno, M. Danilov, M. Dash, J. Dragic, S. Eidelman, S. Fratina, N. Gabyshev, B. Golob, H. Ha, J. Haba, T. Hara, H. Hayashii, M. Hazumi, D. Heffernan, Y. Hoshi, W.-S. Hou, Y. B. Hsiung, K. Ikado, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, J. H. Kang, P. Kapusta, H. Kawai, T. Kawasaki, H. J. Kim, H. O. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kulasiri, R. Kumar, C. C. Kuo, A. Kuzmin, Y.-J. Kwon, M. J. Lee, A. Limosani, S.-W. Lin, D. Liventsev, J. MacNaughton, G. Majumder, T. Matsumoto, S. McOnie, W. Mitaroff, K. Miyabayashi, H. Miyata, Y. Miyazaki, G. R. Moloney, E. Nakano, M. Nakao, Z. Natkaniec, S. Nishida, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, Y. Onuki, H. Ozaki, P. Pakhlov, G. Pakhlova, R. Pestotnik, L. E. Piilonen, Y. Sakai, N. Satoyama, T. Schietinger, O. Schneider, J. Schuemann, A. J. Schwartz, R. Seidl, K. Senyo, M. E. Sevior, M. Shapkin, H. Shibuya, J. B. Singh, A. Somov, N. Soni, S. Stanic, M. Staric, H. Stoeck, K. Sumisawa, T. Sumiyoshi, S. Suzuki, F. Takasaki, K. Tamai, M. Tanaka, G. N. Taylor, Y. Teramoto, X. C. Tian, I. Tikhomirov, S. Uehara, K. Ueno, Y. Unno, S. Uno, Y. Ushiroda, Y. Usov, G. Varner, S. Villa, A. Vinokurova, C. H. Wang, Y. Watanabe, J. Wicht, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, V. Zhilich, V. Zhulanov, A. Zupanc

PHYSICAL REVIEW D 76 ( 1 ) 1 - 9 2007年7月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

Several exclusive B-s(0) decays are studied using a 1.86 fb(-1) data sample collected at the Upsilon(5S) resonance with the Belle detector at the KEKB asymmetric energy e(+)e(-) collider. In the B-s(0)-> D-s(-)pi(+) decay mode we find 10 B-s(0) candidates and measure the corresponding branching fraction. Combining the B-s(0)-> D-s((*)-)pi(+), B-s(0)-> D-s((*)-)rho(+), B-s(0)-> J/psi phi, and B-s(0)-> J/psi eta decay modes, a significant B-s(0) signal is observed. The ratio sigma(e(+)e(-)-> B-s(*)(B) over bar (*)(s))/sigma(e(+)e(-)-> B-s((*))(B) over bar ((*))(s))=(93(-9)(+7)+/- 1)% is obtained at the Upsilon(5S) energy, indicating that B-s(0) meson production proceeds predominantly through the creation of B-s(*)(B) over bar (*)(s) pairs. The B-s(0) and B-s(*) meson masses are measured to be M(B-s(0))=(5370 +/- 1 +/- 3) MeV/c(2) and M(B-s(*))=(5418 +/- 1 +/- 3) MeV/c(2). Upper limits on the B-s(0)->gamma gamma, B-s(0)->phi gamma, B-s(0)-> K+K-, and B-s(0)-> Ds(*)+Ds(*)- branching fractions are also reported.

DOI： 10.1103/PhysRevD.76.012002

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Evidence for CP violation in B-0 -> D+D- decays 査読

S. Fratina, K. Abe, K. Abe, I. Adachi, H. Aihara, D. Anipko, K. Arinstein, T. Aushev, A. M. Bakich, E. Barberio, A. Bay, K. Belous, U. Bitenc, I. Bizjak, A. Bondar, A. Bozek, M. Bracko, J. Brodzicka, T. E. Browder, M.-C. Chang, P. Chang, Y. Chao, A. Chen, K.-F. Chen, W. T. Chen, B. G. Cheon, R. Chistov, Y. Choi, Y. K. Choi, S. Cole, J. Dalseno, M. Dash, A. Drutskoy, S. Eidelman, A. Go, B. Golob, A. Gorisek, H. Ha, J. Haba, K. Hara, M. Hazumi, D. Heffernan, T. Hokuue, Y. Hoshi, W.-S. Hou, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, H. Kaji, J. H. Kang, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, H. O. Kim, S. K. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kulasiri, R. Kumar, C. C. Kuo, A. Kuzmin, Y.-J. Kwon, M. J. Lee, S. E. Lee, T. Lesiak, A. Limosani, S.-W. Lin, D. Liventsev, F. Mandl, T. Matsumoto, A. Matyja, S. McOnie, T. Medvedeva, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, G. R. Moloney, T. Mori, E. Nakano, M. Nakao, H. Nakazawa, S. Nishida, S. Noguchi, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, Y. Onuki, H. Ozaki, P. Pakhlov, G. Pakhlova, C. W. Park, H. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, Y. Sakai, N. Satoyama, T. Schietinger, O. Schneider, J. Schuemann, C. Schwanda, A. J. Schwartz, K. Senyo, M. E. Sevior, M. Shapkin, H. Shibuya, B. Shwartz, J. B. Singh, A. Somov, N. Soni, S. Stanic, M. Staric, H. Stoeck, T. Sumiyoshi, F. Takasaki, K. Tamai, M. Tanaka, Y. Teramoto, X. C. Tian, I. Tikhomirov, K. Trabelsi, T. Tsukamoto, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, K. E. Varvell, K. Vervink, S. Villa, C. H. Wang, Y. Watanabe, E. Won, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, C. C. Zhang, Z. P. Zhang, V. Zhilich, A. Zupanc

PHYSICAL REVIEW LETTERS 98 ( 22 ) 1 - 6 2007年6月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report measurements of the branching fraction and CP violation parameters in B-0 -> D+D- decays. The results are based on a data sample that contains 535x10(6) B(B) over bar pairs collected at the Upsilon(4S) resonance, with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We obtain [1.97 +/- 0.20(stat)+/- 0.20(syst)]x10(-4) for the branching fraction of B-0 -> D+D-. The measured values of the CP violation parameters are S=-1.13 +/- 0.37 +/- 0.09, A=0.91 +/- 0.23 +/- 0.06, where the first error is statistical and the second is systematic. We find evidence of CP violation in B-0 -> D+D- at the 4.1 sigma confidence level. While the value of S is consistent with expectations from other measurements, the value of the parameter A favors large direct CP violation at the 3.2 sigma confidence level, in contradiction to standard model expectations.

DOI： 10.1103/PhysRevLett.98.221802

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Measurement of CP asymmetry in a time-dependent Dalitz analysis of B0 ->(rho pi)(0) and a constraint on the quark mixing matrix angle phi(2) 査読

A. Kusaka, C. C. Wang, H. Ishino, K. Abe, K. Abe, I. Adachi, H. Aihara, D. Anipko, V. Aulchenko, T. Aushev, A. M. Bakich, E. Barberio, A. Bay, I. Bedny, K. Belous, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, A. Bozek, M. Bracko, T. E. Browder, M.-C. Chang, P. Chang, Y. Chao, A. Chen, K.-F. Chen, W. T. Chen, B. G. Cheon, R. Chistov, S.-K. Choi, Y. Choi, Y. K. Choi, S. Cole, J. Dalseno, M. Danilov, M. Dash, J. Dragic, A. Drutskoy, S. Eidelman, S. Fratina, M. Fujikawa, N. Gabyshev, A. Garmash, T. Gershon, G. Gokhroo, B. Golob, H. Ha, J. Haba, T. Hara, N. C. Hastings, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, T. Hokuue, Y. Hoshi, S. Hou, W.-S. Hou, Y. B. Hsiung, T. Iijima, K. Ikado, A. Imoto, K. Inami, A. Ishikawa, R. Itoh, M. Iwasaki, Y. Iwasaki, H. Kaji, H. Kakuno, J. H. Kang, P. Kapusta, N. Katayama, H. Kawai, T. Kawasaki, H. R. Khan, H. Kichimi, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kulasiri, R. Kumar, C. C. Kuo, A. Kuzmin, Y.-J. Kwon, J. Lee, M. J. Lee, S. E. Lee, T. Lesiak, A. Limosani, S.-W. Lin, D. Liventsev, F. Mandl, D. Marlow, T. Matsumoto, K. Miyabayashi, H. Miyake, Y. Miyazaki, R. Mizuk, T. Mori, E. Nakano, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, O. Nitoh, S. Noguchi, S. Ogawa, T. Ohshima, S. Okuno, Y. Onuki, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Park, K. S. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, A. Poluektov, Y. Sakai, N. Satoyama, O. Schneider, J. Schuemann, A. J. Schwartz, R. Seidl, K. Senyo, M. E. Sevior, M. Shapkin, H. Shibuya, J. B. Singh, A. Somov, N. Soni, S. Stanic, M. Staric, H. Stoeck, S. Y. Suzuki, O. Tajima, F. Takasaki, K. Tamai, M. Tanaka, G. N. Taylor, Y. Teramoto, X. C. Tian, I. Tikhomirov, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, S. Uehara, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Ushiroda, Y. Usov, G. Varner, S. Villa, C. H. Wang, M.-Z. Wang, Y. Watanabe, R. Wedd, E. Won, Q. L. Xie, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, L. M. Zhang, Z. P. Zhang, V. Zhilich, A. Zupanc

PHYSICAL REVIEW LETTERS 98 ( 22 ) 1 - 6 2007年6月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We present a measurement of CP asymmetry using a time-dependent Dalitz plot analysis of B-0 ->pi(+)pi(-)pi(0) decays based on a 414 fb(-1) data sample containing 449x10(6)B(B) over bar pairs. The data was collected on the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric energy e(+)e(-) collider. Combining our analysis with information on charged B decay modes, we perform a full Dalitz and isospin analysis and obtain a constraint on the CKM angle phi(2), 68 degrees <phi(2)< 95 degrees as the 68.3% confidence interval for the phi(2) solution consistent with the standard model (SM). A large SM-disfavored region also remains.

DOI： 10.1103/PhysRevLett.98.221602

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Observation of B decays to two kaons 査読

S.-W. Lin, P. Chang, K. Abe, K. Abe, I. Adachi, H. Aihara, D. Anipko, K. Arinstein, V. Aulchenko, T. Aushev, T. Aziz, A. M. Bakich, E. Barberio, A. Bay, I. Bedny, K. Belous, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, A. Bozek, M. Bracko, Y. Chao, A. Chen, K.-F. Chen, W. T. Chen, B. G. Cheon, R. Chistov, S.-K. Choi, Y. Choi, Y. K. Choi, J. Dalseno, M. Dash, J. Dragic, S. Eidelman, S. Fratina, N. Gabyshev, T. Gershon, A. Go, G. Gokhroo, B. Golob, H. Ha, J. Haba, T. Hara, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, Y. Hoshi, S. Hou, W.-S. Hou, Y. B. Hsiung, T. Iijima, K. Ikado, A. Imoto, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, H. Kaji, J. H. Kang, N. Katayama, H. Kawai, T. Kawasaki, H. R. Khan, H. Kichimi, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, R. Kulasiri, C. C. Kuo, Y.-J. Kwon, J. S. Lange, J. Lee, M. J. Lee, S. E. Lee, T. Lesiak, A. Limosani, F. Mandl, T. Matsumoto, S. McOnie, W. Mitaroff, K. Miyabayashi, H. Miyaki, H. Miyata, Y. Miyazaki, R. Mizuk, D. Mohapatra, T. Mori, I. Nakamura, E. Nakano, M. Nakao, S. Nishida, O. Nitoh, S. Noguchi, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, Y. Onuki, H. Ozaki, P. Pakhlov, G. Pakhlova, C. W. Park, H. Park, K. S. Park, R. Pestotnik, L. E. Piilonen, H. Sahoo, Y. Sakai, N. Satoyama, T. Schietinger, O. Schneider, J. Schuemann, A. J. Schwartz, K. Senyo, M. Shapkin, J. B. Singh, A. Sokolov, A. Somov, N. Soni, S. Stanic, M. Staric, H. Stoeck, T. Sumiyoshi, O. Tajima, F. Takasaki, K. Tamai, N. Tamura, M. Tanaka, G. N. Taylor, Y. Teramoto, X. C. Tian, I. Tikhomirov, K. Trabelsi, T. Tsukamoto, S. Uehara, T. Uglov, K. Ueno, Y. Unno, S. Uno, Y. Usov, G. Varner, S. Villa, C. C. Wang, C. H. Wang, M.-Z. Wang, Y. Watanabe, E. Won, Q. L. Xie, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, C. C. Zhang, L. M. Zhang, Z. P. Zhang, V. Zhilich, A. Zupanc

PHYSICAL REVIEW LETTERS 98 ( 18 ) 1 - 6 2007年5月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

Using 449x10(6) B(B) over bar pairs collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider, we observe clear signals for B+->(K) over bar K-0(+) and B-0 ->(K) over bar K-0(0) decays with 5.3 sigma and 6.0 sigma significance, respectively. We measure the branching fractions B(B+->(K) over bar K-0(+))=(1.22(-0.28-0.16)(+0.32+0.13))x10(-6) and B(B-0 ->(K) over bar K-0(0))=(0.87(-0.20)(+0.25)+/- 0.09)x10(-6), and partial-rate asymmetries A(CP)(B+->(K) over bar K-0(+))=0.13(-0.24)(+0.23)+/- 0.02 and A(CP)(B-0 ->(K) over bar K-0(0))=-0.58(-0.66)(+0.73)+/- 0.04. From a simultaneous fit, we also obtain B(B+-> K-0 pi(+))=(22.8(-0.7)(+0.8)+/- 1.3)x10(-6) and A(CP)(B+-> K-0 pi(+))=0.03 +/- 0.03 +/- 0.01. The first and second error in the branching fractions and the partial-rate asymmetries are statistical and systematic, respectively. No signal is observed for B-0 -> K+K- decays, and for this branching fraction, we set an upper limit of 4.1x10(-7) at the 90% confidence level.

DOI： 10.1103/PhysRevLett.98.181804

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Improved measurement of (B)over-bar(0) -> D-s(-) D+ and search for (B)over-bar(0) -> D-s(+) D-s(-) at Belle 査読

A. Zupanc, K. Abe, K. Abe, H. Aihara, D. Anipko, K. Arinstein, V. Aulchenko, T. Aushev, S. Bahinipati, A. M. Bakich, E. Barberio, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, A. Bozek, M. Bracko, T. E. Browder, M.-C. Chang, P. Chang, Y. Chao, K.-F. Chen, W. T. Chen, B. G. Cheon, R. Chistov, S.-K. Choi, Y. Choi, Y. K. Choi, J. Dalseno, M. Dash, A. Drutskoy, S. Eidelman, S. Fratina, N. Gabyshev, A. Go, B. Golob, H. Ha, J. Haba, T. Hara, H. Hayashii, M. Hazumi, D. Heffernan, T. Hokuue, Y. Hoshi, W.-S. Hou, Y. B. Hsiung, T. Iijima, K. Ikado, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, Y. Iwasaki, H. Kaji, P. Kapusta, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kulasiri, R. Kumar, Y.-J. Kwon, M. J. Lee, T. Lesiak, A. Limosani, S.-W. Lin, D. Liventsev, G. Majumder, F. Mandl, T. Matsumoto, S. McOnie, T. Medvedeva, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, G. R. Moloney, E. Nakano, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, Y. Onuki, H. Ozaki, P. Pakhlov, G. Pakhlova, C. W. Park, R. Pestotnik, L. E. Piilonen, Y. Sakai, N. Satoyama, T. Schietinger, O. Schneider, C. Schwanda, R. Seidl, K. Senyo, M. E. Sevior, M. Shapkin, H. Shibuya, B. Shwartz, J. B. Singh, A. Somov, N. Soni, S. Stanic, M. Staric, H. Stoeck, K. Sumisawa, T. Sumiyoshi, S. Suzuki, F. Takasaki, K. Tamai, M. Tanaka, G. N. Taylor, Y. Teramoto, X. C. Tian, I. Tikhomirov, K. Trabelsi, T. Tsukamoto, S. Uehara, K. Ueno, S. Uno, Y. Ushiroda, Y. Usov, G. Varner, S. Villa, C. H. Wang, Y. Watanabe, E. Won, Q. L. Xie, A. Yamaguchi, Y. Yamashita, M. Yamauchi, Y. Yusa, C. C. Zhang, Z. P. Zhang, V. Zhilich, V. Zhulanov

PHYSICAL REVIEW D 75 ( 9 ) 1 - 7 2007年5月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We reconstruct (B) over bar (0)-> Ds-D+ decays using a sample of 449x10(6) B (B) over bar pairs recorded by the Belle experiment, and measure the branching fraction to be B((B) over bar (0)-> Ds-D+)=[7.5 +/- 0.2(stat)+/- 0.8(syst)+/- 0.8(B(')s)]x10(-3). A search for the related decay (B) over bar (0)-> Ds+Ds- is also performed. Since we observe no statistically significant signal, an upper limit on the branching fraction is set at 3.6x10(-5) (90% C.L.).

DOI： 10.1103/PhysRevD.75.091102

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Evidence for D-0-(D)over-bar(0) mixing 査読

M. Staric, B. Golob, K. Abe, K. Abe, I. Adachi, H. Aihara, K. Arinstein, T. Aushev, T. Aziz, S. Bahinipati, A. M. Bakich, V. Balagura, E. Barberio, A. Bay, K. Belous, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, A. Bozek, M. Bracko, J. Brodzicka, T. E. Browder, P. Chang, Y. Chao, A. Chen, K.-F. Chen, W. T. Chen, B. G. Cheon, R. Chistov, I.-S. Cho, S.-K. Choi, Y. Choi, S. Cole, J. Dalseno, M. Danilov, M. Dash, J. Dragic, A. Drutskoy, S. Eidelman, D. Epifanov, S. Fratina, N. Gabyshev, A. Garmash, A. Gorisek, H. Ha, J. Haba, T. Hara, N. C. Hastings, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, T. Higuchi, T. Hokuue, Y. Hoshi, W.-S. Hou, T. Iijima, K. Ikado, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, H. Kaji, P. Kapusta, N. Katayama, T. Kawasaki, A. Kibayashi, H. Kichimi, S. K. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kumar, C. C. Kuo, A. Kuzmin, Y.-J. Kwon, J. S. Lange, M. J. Lee, S. E. Lee, T. Lesiak, J. Li, A. Limosani, S.-W. Lin, D. Liventsev, F. Mandl, D. Marlow, T. Matsumoto, A. Matyja, S. McOnie, T. Medvedeva, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, D. Mohapatra, Y. Nagasaka, I. Nakamura, E. Nakano, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, O. Nitoh, S. Noguchi, T. Nozaki, S. Ogawa, S. Okuno, S. L. Olsen, Y. Onuki, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Palka, R. Pestotnik, L. E. Piilonen, A. Poluektov, M. Rozanska, H. Sahoo, Y. Sakai, N. Satoyama, O. Schneider, J. Schu R. Mann, C. Schwanda, A. J. Schwartz, R. Seidl, K. Senyo, M. E. Sevior, M. Shapkin, C. P. Shen, H. Shibuya, B. Shwartz, A. Sokolov, A. Somov, S. Stanic, H. Stoeck, K. Sumisawa, T. Sumiyoshi, S. Suzuki, S. Y. Suzuki, O. Tajima, F. Takasaki, K. Tamai, M. Tanaka, G. N. Taylor, Y. Teramoto, X. C. Tian, I. Tikhomirov, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Ushiroda, Y. Usov, G. Varner, K. E. Varvell, K. Vervink, S. Villa, A. Vinokurova, C. H. Wang, M.-Z. Wang, Y. Watanabe, J. Wicht, E. Won, Q. L. Xie, B. D. Yabsley, A. Yamaguchi, H. Yamamoto, Y. Yamashita, M. Yamauchi, C. Z. Yuan, Y. Yuan, C. C. Zhang, L. M. Zhang, Z. P. Zhang, V. Zhilich, A. Zupanc

PHYSICAL REVIEW LETTERS 98 ( 21 ) 1 - 6 2007年5月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We observe evidence for D-0-(D) over bar (0) mixing by measuring the difference in the apparent lifetime when a D-0 meson decays to the CP eigenstates K+K- and pi(+)pi(-) and when it decays to the final state K-pi(+). We find the relative difference of the lifetimes y(CP) to be [1.31 +/- 0.32(stat)+/- 0.25(syst)]%, 3.2 standard deviations from zero. We also search for a CP asymmetry between D-0 and (D) over bar (0) decays; no evidence for CP violation is found. These results are based on 540 fb(-1) of data recorded by the Belle detector at the KEKB e(+)e(-) collider.

DOI： 10.1103/PhysRevLett.98.211803

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Observation of direct CP violation in B-0 ->pi(+)pi(-) decays and model-independent constraints on the quark-mixing angle phi(2) 査読

H. Ishino, K. Abe, K. Abe, I. Adachi, H. Aihara, D. Anipko, K. Arinstein, T. Aushev, A. M. Bakich, E. Barberio, M. Barbero, I. Bedny, U. Bitenc, I. Bizjak, S. Blyth, A. Bozek, M. Bracko, T. E. Browder, M.-C. Chang, P. Chang, Y. Chao, A. Chen, K.-F. Chen, W. T. Chen, B. G. Cheon, R. Chistov, Y. Choi, Y. K. Choi, S. Cole, J. Dalseno, M. Dash, A. Drutskoy, S. Eidelman, S. Fratina, T. Gershon, A. Go, G. Gokhroo, B. Golob, A. Gorisek, H. Ha, J. Haba, K. Hara, K. Hayasaka, M. Hazumi, D. Heffernan, T. Hokuue, Y. Hoshi, S. Hou, Y. B. Hsiung, T. Iijima, A. Imoto, K. Inami, A. Ishikawa, Y. Iwasaki, J. H. Kang, P. Kapusta, S. U. Kataoka, N. Katayama, H. Kawai, T. Kawasaki, H. R. Khan, A. Kibayashi, H. Kichimi, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kulasiri, R. Kumar, C. C. Kuo, A. Kusaka, A. Kuzmin, Y.-J. Kwon, M. J. Lee, S. E. Lee, T. Lesiak, A. Limosani, S.-W. Lin, J. MacNaughton, F. Mandl, D. Marlow, T. Matsumoto, A. Matyja, S. McOnie, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, D. Mohapatra, Y. Nagasaka, E. Nakano, M. Nakao, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, S. L. Olsen, Y. Onuki, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, H. Sahoo, Y. Sakai, N. Satoyama, T. Schietinger, O. Schneider, J. Schuemann, C. Schwanda, A. J. Schwartz, R. Seidl, K. Senyo, M. E. Sevior, H. Shibuya, B. Shwartz, A. Somov, N. Soni, S. Stanic, M. Staric, H. Stoeck, K. Sumisawa, T. Sumiyoshi, S. Y. Suzuki, O. Tajima, F. Takasaki, K. Tamai, N. Tamura, M. Tanaka, Y. Teramoto, X. C. Tian, K. Trabelsi, T. Tsukamoto, S. Uehara, K. Ueno, Y. Unno, S. Uno, P. Urquijo, Y. Ushiroda, Y. Usov, G. Varner, K. E. Varvell, S. Villa, C. H. Wang, M.-Z. Wang, Y. Watanabe, E. Won, C.-H. Wu, Q. L. Xie, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, L. M. Zhang, Z. P. Zhang, V. Zhilich, A. Zupanc

PHYSICAL REVIEW LETTERS 98 ( 21 ) 1 - 6 2007年5月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report a new measurement of the time-dependent CP-violating parameters in B-0 ->pi(+)pi(-) decays with 535x10(6) B (B) over bar pairs collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider operating at the Upsilon(4S) resonance. We find 1464 +/- 65 B-0 ->pi(+)pi(-) events and measure the CP-violating parameters S-pi pi=-0.61 +/- 0.10(stat)+/- 0.04(syst) and A(pi pi)=+0.55 +/- 0.08(stat)+/- 0.05(syst). We observe large direct CP violation with a significance greater than 5 standard deviations for any S-pi pi value. Using isospin relations, we measure the Cabibbo-Kobayashi-Maskawa quark-mixing matrix angle phi(2)=(97 +/- 11)degrees for the solution consistent with the standard model and exclude the range 11 degrees <phi(2)< 79 degrees at the 95% confidence level.

DOI： 10.1103/PhysRevLett.98.211801

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Measurement of charmless B decays to eta K-* and eta rho 査読

C. H. Wang, K. Abe, I. Adachi, H. Aihara, D. Anipko, T. Aushev, A. M. Bakich, E. Barberio, A. Bay, K. Belous, U. Bitenc, S. Blyth, A. Bondar, A. Bozek, M. Bracko, P. Chang, Y. Chao, A. Chen, W. T. Chen, B. G. Cheon, R. Chistov, Y. Choi, Y. K. Choi, S. Cole, J. Dalseno, A. Drutskoy, S. Eidelman, S. Fratina, N. Gabyshev, A. Garmash, T. Gershon, G. Gokhroo, B. Golob, H. Ha, J. Haba, T. Hara, K. Hayasaka, M. Hazumi, D. Heffernan, T. Hokuue, Y. Hoshi, W.-S. Hou, T. Iijima, K. Ikado, A. Imoto, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, H. Kaji, J. H. Kang, P. Kapusta, N. Katayama, H. R. Khan, H. Kichimi, Y. J. Kim, K. Kinoshita, R. Kulasiri, R. Kumar, C. C. Kuo, Y.-J. Kwon, G. Leder, M. J. Lee, S. E. Lee, T. Lesiak, S.-W. Lin, D. Liventsev, J. MacNaughton, T. Matsumoto, A. Matyja, S. McOnie, H. Miyake, H. Miyata, R. Mizuk, E. Nakano, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, Y. Onuki, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Park, K. S. Park, R. Pestotnik, L. E. Piilonen, Y. Sakai, N. Satoyama, O. Schneider, J. Schumann, K. Senyo, M. E. Sevior, M. Shapkin, H. Shibuya, J. B. Singh, A. Sokolov, A. Somov, N. Soni, S. Stanic, M. Staric, H. Stoeck, S. Y. Suzuki, K. Tamai, M. Tanaka, G. N. Taylor, Y. Teramoto, X. C. Tian, I. Tikhomirov, T. Tsuboyama, T. Tsukamoto, S. Uehara, T. Uglov, K. Ueno, P. Urquijo, Y. Usov, G. Varner, S. Villa, M.-Z. Wang, Y. Watanabe, E. Won, Q. L. Xie, A. Yamaguchi, Y. Yamashita, C. C. Zhang, Z. P. Zhang, V. Zhilich, A. Zupanc

PHYSICAL REVIEW D 75 ( 9 ) 1 - 10 2007年5月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report measurements of branching fractions and CP asymmetries for B ->eta K-* and B ->eta rho decays. These results are obtained from a 414 fb(-1) data sample collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We measure the following branching fractions: B(B-0 ->eta K-*0)=(15.2 +/- 1.2 +/- 1.0)x10(-6) and B(B+->eta K*+)=(19.3(-1.9)(+2.0)+/- 1.5)x10(-6), where the first error is statistical and the second systematic. We also find a 2.7 sigma excess in the B+->eta rho(+) mode and measure B(B+->eta rho(+))=(4.1(-1.3)(+1.4)+/- 0.4)x10(-6)< 6.5x10(-6) at 90% confidence level. For B-0 ->eta rho(0) decays, we determine the upper limit B(B-0 ->eta rho(0))< 1.9x10(-6) at 90% confidence level. The partial rate asymmetries are A(CP)(eta K-*0)=0.17 +/- 0.08 +/- 0.01, A(CP)(eta K*+)=0.03 +/- 0.10 +/- 0.01, and A(CP)(eta rho(+))=-0.04(-0.32)(+0.34)+/- 0.01.

DOI： 10.1103/PhysRevD.75.092005

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Improved measurements of branching fractions and CP asymmetries in B -> eta h decays 査読

P. Chang, K. Abe, I. Adachi, H. Aihara, D. Anipko, A. M. Bakich, E. Barberio, A. Bay, U. Bitenc, I. Bizjak, A. Bondar, A. Bozek, M. Bracko, T. E. Browder, Y. Chao, A. Chen, K.-F. Chen, W. T. Chen, B. G. Cheon, R. Chistov, S.-K. Choi, Y. Choi, Y. K. Choi, S. Cole, J. Dalseno, M. Dash, J. Dragic, S. Eidelman, S. Fratina, N. Gabyshev, A. Go, A. Gorisek, H. Ha, J. Haba, K. Hara, H. Hayashii, M. Hazumi, D. Heffernan, T. Hokuue, Y. Hoshi, S. Hou, W.-S. Hou, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, H. Kaji, J. H. Kang, S. U. Kataoka, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krokovny, R. Kumar, C. C. Kuo, A. Kuzmin, Y.-J. Kwon, M. J. Lee, S. E. Lee, T. Lesiak, S.-W. Lin, F. Mandl, T. Matsumoto, S. McOnie, H. Miyata, Y. Miyazaki, R. Mizuk, G. R. Moloney, T. Mori, Y. Nagasaka, M. Nakao, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, Y. Onuki, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, Y. Sakai, N. Satoyama, T. Schietinger, O. Schneider, J. Schuemann, C. Schwanda, A. J. Schwartz, K. Senyo, M. E. Sevior, M. Shapkin, H. Shibuya, B. Shwartz, J. B. Singh, A. Somov, N. Soni, S. Stanic, M. Staric, H. Stoeck, T. Sumiyoshi, F. Takasaki, M. Tanaka, G. N. Taylor, Y. Teramoto, X. C. Tian, I. Tikhomirov, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, S. Uehara, T. Uglov, K. Ueno, Y. Unno, S. Uno, Y. Usov, G. Varner, K. E. Varvell, S. Villa, C. C. Wang, C. H. Wang, M.-Z. Wang, M. Watanabe, Y. Watanabe, R. Wedd, J. Wicht, E. Won, A. Yamaguchi, Y. Yamashita, M. Yamauchi, C. C. Zhang, Z. P. Zhang, V. Zhilich, A. Zupanc

PHYSICAL REVIEW D 75 ( 7 ) 1 - 7 2007年4月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMERICAN PHYSICAL SOC

We report improved measurements of B decays with an eta meson in the final state using 492 fb(-1) of data collected by the Belle detector at the KEKB e(+)e(-) collider. We observe the decays B-+/-->eta pi(+/-) and B-+/-->eta K-+/- and measure the branching fractions B(B-+/-->eta pi(+/-))=(4.2 +/- 0.4(stat)+/- 0.2(sys))x10(-6) and B(B-+/-->eta K-+/-)=(1.9 +/- 0.3(stat)(-0.1)(+0.2)(sys))x10(-6). The corresponding CP-violating asymmetries are measured to be -0.23 +/- 0.09(stat)+/- 0.02(sys) for eta pi(+/-) and -0.39 +/- 0.16(stat)+/- 0.03(sys) for eta K-+/-. We also search for B-0 ->eta K-0 decays and set an upper limit of 1.9x10(-6) at the 90% confidence level.

DOI： 10.1103/PhysRevD.75.071104

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Observation of the decay B-0 -> J/psi eta 査読

M. -C. Chang, K. Abe, K. Abe, I. Adachi, H. Aihara, D. Anipko, K. Arinstein, T. Aushev, A. M. Bakich, E. Barberio, A. Bay, I. Bedny, K. Belous, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, A. Bozek, T. E. Browder, P. Chang, Y. Chao, A. Chen, K. -F. Chen, W. T. Chen, B. G. Cheon, R. Chistov, S. -K. Choi, Y. Choi, Y. K. Choi, S. Cole, J. Dalseno, M. Danilov, M. Dash, A. Drutskoy, S. Eidelman, S. Fratina, N. Gabyshev, T. Gershon, A. Go, G. Gokhroo, H. Ha, J. Haba, T. Hara, K. Hayasaka, M. Hazumi, D. Heffernan, T. Hokuue, Y. Hoshi, S. Hou, W. -S. Hou, Y. B. Hsiung, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, H. Kaji, J. H. Kang, S. U. Kataoka, H. Kawai, T. Kawasaki, H. R. Khan, H. Kichimi, S. K. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kulasiri, R. Kumar, C. C. Kuo, A. Kuzmin, Y. -J. Kwon, G. Leder, M. J. Lee, S. E. Lee, T. Lesiak, A. Limosani, S. -W. Lin, G. Majumder, F. Mandl, T. Matsumoto, A. Matyja, S. McOnie, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, T. Mori, T. Nagamine, I. Nakamura, E. Nakano, M. Nakao, S. Nishida, O. Nitoh, S. Noguchi, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, Y. Onuki, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Palka, H. Park, K. S. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, Y. Sakai, N. Satoyama, T. Schietinger, O. Schneider, J. Schumann, A. J. Schwartz, R. Seidl, K. Senyo, M. Shapkin, H. Shibuya, B. Shwartz, J. B. Singh, A. Somov, N. Soni, S. Stanic, M. Staric, H. Stoeck, K. Sumisawa, T. Sumiyoshi, S. Suzuki, O. Tajima, F. Takasaki, K. Tamai, N. Tamura, M. Tanaka, G. N. Taylor, Y. Teramoto, X. C. Tian, I. Tikhomirov, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, S. Uehara, T. Uglov, S. Uno, P. Urquijo, Y. Ushiroda, Y. Usov, G. Varner, K. E. Varvell, S. Villa, C. C. Wang, C. H. Wang, M. -Z. Wang, Y. Watanabe, R. Wedd, E. Won, Q. L. Xie, A. Yamaguchi, Y. Yamashita, M. Yamauchi, Y. Yusa, C. C. Zhang, L. M. Zhang, Z. P. Zhang, A. Zupanc

PHYSICAL REVIEW LETTERS 98 ( 13 ) 1 - 5 2007年3月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report the first observation of B-0 -> J/psi eta decay. These results are obtained from a data sample that contains 449x10(6) B (B) over bar pairs accumulated at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We observe a signal with a significance of 8.1 sigma and obtain a branching fraction of (9.5 +/- 1.7(stat)+/- 0.8(syst))x10(-6).

DOI： 10.1103/PhysRevLett.98.131803

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Search for invisible decay of the Upsilon(1S) 査読

O. Tajima, H. Hayashii, M. Hazumi, K. Inami, Y. Iwasaki, S. Uehara, K. Abe, I. Adachi, H. Aihara, D. Anipko, V. Aulchenko, A. M. Bakich, E. Barberio, I. Bedny, K. Belous, U. Bitenc, I. Bizjak, A. Bondar, A. Bozek, M. Bracko, T. E. Browder, M. -C. Chang, A. Chen, K. -F. Chen, W. T. Chen, B. G. Cheon, R. Chistov, Y. Choi, Y. K. Choi, S. Cole, J. Dalseno, M. Danilov, M. Dash, A. Drutskoy, S. Eidelman, S. Fratina, N. Gabyshev, T. Gershon, A. Go, G. Gokhroo, H. Ha, J. Haba, K. Hayasaka, D. Heffernan, T. Hokuue, Y. Hoshi, S. Hou, W. -S. Hou, T. Iijima, K. Ikado, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, J. H. Kang, S. U. Kataoka, N. Katayama, H. Kawai, T. Kawasaki, H. R. Khan, H. Kichimi, H. J. Kim, S. K. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kumar, C. C. Kuo, A. Kuzmin, Y. -J. Kwon, J. S. Lange, J. Lee, M. J. Lee, T. Lesiak, A. Limosani, S. -W. Lin, D. Liventsev, G. Majumder, F. Mandl, T. Matsumoto, S. McOnie, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, T. Mori, J. Mueller, I. Nakamura, E. Nakano, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, O. Nitoh, S. Noguchi, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, Y. Onuki, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Park, R. Pestotnik, L. E. Piilonen, H. Sahoo, Y. Sakai, N. Satoyama, T. Schietinger, O. Schneider, J. Schumann, A. J. Schwartz, R. Seidl, K. Senyo, M. E. Sevior, M. Shapkin, H. Shibuya, B. Shwartz, J. B. Singh, A. Sokolov, A. Somov, N. Soni, S. Stanic, M. Staric, H. Stoeck, K. Sumisawa, T. Sumiyoshi, S. Suzuki, F. Takasaki, K. Tamai, N. Tamura, M. Tanaka, G. N. Taylor, Y. Teramoto, X. C. Tian, I. Tikhomirov, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, T. Uglov, S. Uno, P. Urquijo, Y. Ushiroda, Y. Usov, G. Varner, S. Villa, C. C. Wang, C. H. Wang, M. -Z. Wang, Y. Watanabe, R. Wedd, J. Wicht, E. Won, Q. L. Xie, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, Z. P. Zhang, V. Zhilich, A. Zupanc

PHYSICAL REVIEW LETTERS 98 ( 13 ) 1 - 6 2007年3月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMERICAN PHYSICAL SOC

We report results of a search for the invisible decay of the Upsilon(1S) via the Upsilon(3S)->pi(+)pi(-)Upsilon(1S) transition using a data sample of 2.9 fb(-1) at the Upsilon(3S) resonance. The data were collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. No signal is found, and an upper limit for the branching fraction at the 90% confidence level is determined to be B(Upsilon(1S)-> invisible)< 2.5x10(-3).

DOI： 10.1103/PhysRevLett.98.132001

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Dalitz analysis of three-body charmless B-0 -> K-0 pi(+) pi(-) decay 査読

A. Garmash, K. Abe, I. Adachi, H. Aihara, D. Anipko, K. Arinstein, V. Aulchenko, T. Aushev, S. Bahinipati, A. M. Bakich, V. Balagura, E. Barberio, M. Barbero, A. Bay, I. Bedny, K. Belous, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, A. Bozek, M. Bracko, T. E. Browder, M. -C. Chang, Y. Chao, A. Chen, K. -F. Chen, W. T. Chen, B. G. Cheon, R. Chistov, Y. Choi, Y. K. Choi, S. Cole, J. Dalseno, M. Dash, J. Dragic, A. Drutskoy, S. Eidelman, D. Epifanov, N. Gabyshev, T. Gershon, A. Go, G. Gokhroo, B. Golob, H. Ha, J. Haba, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, T. Hokuue, Y. Hoshi, S. Hou, W. -S. Hou, Y. B. Hsiung, T. Iijima, K. Ikado, A. Imoto, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, J. H. Kang, P. Kapusta, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, Y. J. Kim, K. Kinoshita, P. Krizan, P. Krokovny, R. Kulasiri, R. Kumar, C. C. Kuo, A. Kuzmin, Y. -J. Kwon, S. E. Lee, T. Lesiak, J. Li, S. -W. Lin, Y. Liu, G. Majumder, F. Mandl, T. Matsumoto, S. McOnie, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, D. Mohapatra, G. R. Moloney, Y. Nagasaka, E. Nakano, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, S. Noguchi, T. Ohshima, S. Okuno, S. L. Olsen, Y. Onuki, P. Pakhlov, G. Pakhlova, H. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, A. Poluektov, H. Sahoo, Y. Sakai, N. Satoyama, T. Schietinger, O. Schneider, J. Schumann, C. Schwanda, A. J. Schwartz, K. Senyo, M. Shapkin, H. Shibuya, B. Shwartz, V. Sidorov, A. Sokolov, A. Somov, S. Stanic, M. Staric, H. Stoeck, K. Sumisawa, T. Sumiyoshi, S. Y. Suzuki, F. Takasaki, K. Tamai, M. Tanaka, G. N. Taylor, Y. Teramoto, X. C. Tian, K. Trabelsi, T. Tsukamoto, S. Uehara, T. Uglov, K. Ueno, Y. Unno, S. Uno, P. Urquijo, Y. Ushiroda, Y. Usov, G. Varner, K. E. Varvell, S. Villa, C. H. Wang, M. -Z. Wang, Y. Watanabe, E. Won, C. -H. Wu, Q. L. Xie, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, C. C. Zhang, L. M. Zhang, Z. P. Zhang, V. Zhilich, A. Zupanc

PHYSICAL REVIEW D 75 ( 1 ) 1 - 10 2007年1月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report results of a Dalitz plot analysis of the three-body charmless B-0 -> K-0 pi(+)pi(-) decay. The analysis is performed with a data sample that contains 388x10(6) BB pairs collected near the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. Measurements of branching fractions for the quasi-two-body decays B-0 ->rho(770)K-0(0), B-0 -> f(0)(980)K-0, B-0 -> K-*(892)(+)pi(-), B-0 -> K-*(1430)(+)pi(-), and upper limits on several other quasi-two-body decay modes are reported.

DOI： 10.1103/PhysRevD.75.012006

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Observation of time-dependent CP violation in B-0 ->eta K-'(0) decays and improved measurements of CP asymmetries in B-0 ->phi K-0, (KSKSKS0)-K-0-K-0 and B-0 -> J/psi K-0 decays 査読

K. -F. Chen, K. Hara, M. Hazumi, T. Higuchi, K. Miyabayashi, Y. Nakahama, K. Sumisawa, O. Tajima, Y. Ushiroda, Y. Yusa, K. Abe, K. Abe, I. Adachi, H. Aihara, D. Anipko, K. Arinstein, V. Aulchenko, T. Aushev, T. Aziz, A. M. Bakich, V. Balagura, S. Banerjee, E. Barberio, M. Barbero, A. Bay, K. Belous, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, A. Bozek, M. Bracko, J. Brodzicka, T. E. Browder, P. Chang, Y. Chao, A. Chen, W. T. Chen, B. G. Cheon, R. Chistov, S. -K. Choi, Y. Choi, Y. K. Choi, A. Chuvikov, S. Cole, J. Dalseno, M. Danilov, M. Dash, J. Dragic, A. Drutskoy, S. Eidelman, D. Epifanov, S. Fratina, A. Garmash, T. Gershon, A. Go, G. Gokhroo, P. Goldenzweig, B. Golob, H. Ha, J. Haba, T. Hara, K. Hayasaka, H. Hayashii, D. Heffernan, T. Hokuue, Y. Hoshi, S. Hou, W. -S. Hou, Y. B. Hsiung, T. Iijima, K. Ikado, A. Imoto, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, H. Kakuno, J. H. Kang, S. U. Kataoka, N. Katayama, H. Kawai, T. Kawasaki, H. R. Khan, H. Kichimi, H. J. Kim, S. K. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kulasiri, R. Kumar, C. C. Kuo, A. Kusaka, A. Kuzmin, Y. -J. Kwon, G. Leder, J. Lee, M. J. Lee, T. Lesiak, J. Li, A. Limosani, S. -W. Lin, Y. Liu, D. Liventsev, G. Majumder, F. Mandl, T. Matsumoto, A. Matyja, W. Mitaroff, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, D. Mohapatra, G. R. Moloney, A. Murakami, T. Nagamine, Y. Nagasaka, I. Nakamura, E. Nakano, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, S. Noguchi, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, Y. Onuki, W. Ostrowicz, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Palka, H. Park, R. Pestotnik, L. E. Piilonen, H. Sahoo, Y. Sakai, N. Satoyama, T. Schietinger, O. Schneider, J. Schumann, A. J. Schwartz, R. Seidl, K. Senyo, M. E. Sevior, M. Shapkin, H. Shibuya, B. Shwartz, J. B. Singh, A. Sokolov, A. Somov, S. Stanic, M. Staric, H. Stoeck, T. Sumiyoshi, S. Suzuki, F. Takasaki, K. Tamai, N. Tamura, M. Tanaka, G. N. Taylor, Y. Teramoto, X. C. Tian, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, S. Uehara, T. Uglov, K. Ueno, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, K. E. Varvell, S. Villa, C. C. Wang, C. H. Wang, M. -Z. Wang, Y. Watanabe, R. Wedd, E. Won, Q. L. Xie, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, C. C. Zhang, Z. P. Zhang, V. Zhilich, A. Zupanc

PHYSICAL REVIEW LETTERS 98 ( 3 ) 1 - 6 2007年1月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMERICAN PHYSICAL SOC

We present improved measurements of CP-violation parameters in B-0 -> phi K-0, eta K-'(0), (KSKSKS0)-K-0-K-0 decays based on a sample of 535 x 10(6) B (B) over bar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB energy-asymmetric e(+)e(-) collider. We obtain sin2 phi(eff)(1) = +0.64 +/- 0.10(stat) +/- 0.04(syst) for B-0 -> eta K-'(0), +0.50 +/- 0.21(stat) +/- 0.06(syst) for B-0 ->phi K-0, and +0.30 +/- 0.32(stat) +/- 0.08(syst) for B-0 -> (KSKSKS0)-K-0-K-0 decays. We have observed CP violation in the B-0 -> eta K-'(0) decay with a significance of 5.6 standard deviations. We also perform an improved measurement of CP asymmetries in B-0 -> J/psi K-0 decays and obtain sin2 phi(1) = +0.642 +/- 0.031(stat) +/- 0.017(syst).

DOI： 10.1103/PhysRevLett.98.031802

Web of Science

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Search for B+-> J/psi eta ' K+ and B-0 -> J/psi eta ' K-S(0) decays 査読

Q. L. Xie, K. Abe, I. Adachi, H. Aihara, D. Anipko, K. Arinstein, V. Aulchenko, T. Aushev, T. Aziz, S. Bahinipati, A. M. Bakich, V. Balagura, E. Barberio, M. Barbero, A. Bay, I. Bedny, K. Belous, U. Bitenc, I. Bizjak, S. Blyth, A. Bozek, M. Bracko, T. E. Browder, M. -C. Chang, Y. Chao, A. Chen, K. -F. Chen, W. T. Chen, B. G. Cheon, R. Chistov, Y. Choi, Y. K. Choi, S. Cole, J. Dalseno, M. Dash, A. Drutskoy, S. Eidelman, D. Epifanov, N. Gabyshev, T. Gershon, A. Go, G. Gokhroo, H. Ha, J. Haba, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, T. Hokuue, Y. Hoshi, S. Hou, W. -S. Hou, T. Iijima, K. Ikado, A. Imoto, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, J. H. Kang, P. Kapusta, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, Y. J. Kim, S. Korpar, P. Krizan, P. Krokovny, R. Kulasiri, R. Kumar, C. C. Kuo, A. Kuzmin, Y. -J. Kwon, S. E. Lee, T. Lesiak, S. -W. Lin, Y. Liu, G. Majumder, F. Mandl, T. Matsumoto, S. McOnie, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, G. R. Moloney, J. Mueller, Y. Nagasaka, E. Nakano, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, T. Ohshima, S. Okuno, S. L. Olsen, Y. Onuki, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, A. Poluektov, H. Sahoo, Y. Sakai, N. Satoyama, T. Schietinger, O. Schneider, J. Schumann, K. Senyo, M. Shapkin, H. Shibuya, B. Shwartz, V. Sidorov, A. Sokolov, A. Somov, S. Stanic, M. Staric, H. Stoeck, K. Sumisawa, T. Sumiyoshi, S. Y. Suzuki, F. Takasaki, K. Tamai, M. Tanaka, G. N. Taylor, Y. Teramoto, X. C. Tian, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, S. Uehara, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, C. H. Wang, M. -Z. Wang, Y. Watanabe, R. Wedd, E. Won, A. Yamaguchi, Y. Yamashita, M. Yamauchi, C. C. Zhang, L. M. Zhang, Z. P. Zhang, V. Zhilich, A. Zupanc

PHYSICAL REVIEW D 75 ( 1 ) 1 - 6 2007年1月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMERICAN PHYSICAL SOC

We report the results of searches for B+ -> J/psi eta'K+ and B-0 -> J/psi eta'K-s(0) decays, using a sample of 388 X 10(6) B (B) over bar B pairs collected with the Belle detector at the Y(4S) resonance. No statistically significant signal is found for either of the two decay modes and upper limits for the branching fractions are determined to be B(B+ -> J/psi eta K-'(+)) < 8: 8 x 10(-5) and B(B-0 -> J/psi eta'K-S(0)) < 2.5 x 10(-5) at 90% confidence level.

DOI： 10.1103/PhysRevD.75.017101

Web of Science

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Monolithic pixel detector in a 0.15μm SOI technology 査読

Y. Arai, M. Hazumi, Y. Ikegami, T. Kohriki, O. Tajima, S. Terada, T. Tsuboyama, Y. Unno, H. Ushiroda, H. Ikeda, K. Hara, H. Ishino, T. Kawasaki, E. Martin, G. Varner, H. Tajima, M. Ohno, K. Fukuda, H. Komatsubara, J. Ida, H. Hayashi

IEEE Nuclear Science Symposium Conference Record 3 1440 - 1444 2007年

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記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）

We describe a new pixel detector development project using a 0.15 μm fully-depleted CMOS SOI (Silicon-On-Insulator) technology. Additional processing steps for creating substrate implants and contacts to form sensor and electrode connections were developed for this SOI process. A diode Test Element Group and several test chips have been fabricated and evaluated. The pixel detectors are successfully operated and first images are taken and sensibility to β-rays is confirmed. Back gate effects on the top circuits are observed and discussed. © 2006 IEEE.

DOI： 10.1109/NSSMIC.2006.354171

Web of Science

Scopus

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Observation of the anisotropy of 10-TeV primary cosmic ray nuclei flux with the super-kamiokande-I detector 査読

Guillian, G., Hosaka, J., Ishihara, K., Kameda, J., Koshio, Y., Minamino, A., Mitsuda, C., Miura, M., Moriyama, S., Nakahata, M., Namba, T., Obayashi, Y., Ogawa, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takeuchi, Y., Yamada, S., Higuchi, I., Ishitsuka, M., Kajita, T., Kaneyuki, K., Mitsuka, G., Nakayama, S., Nishino, H., Okada, A., Okumura, K., Saji, C., Takenaga, Y., Desai, S., Kearns, E., Stone, J.L., Sulak, L.R., Wang, W., Goldhaber, M., Casper, D., Gajewski, W., Kropp, W.R., Liu, D.W., Mine, S., Smy, M.B., Sobel, H.W., Vagins, M.R., Ganezer, K.S., Hill, J., Keig, W.E., Scholberg, K., Walter, C.W., Ellsworth, R.W., Tasaka, S., Kibayashi, A., Learned, J.G., Matsuno, S., Messier, M.D., Hayato, Y., Ichikawa, A.K., Ishida, T., Ishii, T., Iwashita, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nitta, K., Oyama, Y., Totsuka, Y., Suzuki, A.T., Hasegawa, M., Kato, I., Maesaka, H., Nakaya, T., Nishikawa, K., Sato, H., Yamamoto, S., Yokoyama, M., Haines, T.J., Dazeley, S., Hatakeyama, S., Svoboda, R., Blaufuss, E., Goodman, J.A., Sullivan, G.W., Turcan, D., Habig, A., Fukuda, Y., Itow, Y., Sakuda, M., Yoshida, M., Kim, S.B., Yoo, J., Okazawa, H., Ishizuka, T., Jung, C.K., Kato, T., Kobayashi, K., Malek, M., Mauger, C., McGrew, C., Sharkey, E., Yanagisawa, C., Gando, Y., Hasegawa, T., Inoue, K., Shirai, J., Suzuki, A., Nishijima, K., Ishino, H., Watanabe, Y., Koshiba, M., Kielczewska, D., Berns, H.G., Gran, R., Shiraishi, K.K., Stachyra, A., Washburn, K., Wilkes, R.J.

Phys.Rev.D 75 ( 062003 ) 062003 - 062003 2007年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevD.75.062003

Web of Science

arXiv

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Search for neutral Q-balls in super-Kamiokande II 査読

Takenaga, Y., Abe, K., Hayato, Y., Iida, T., Ishihara, K., Kameda, J., Koshio, Y., Minamino, A., Mitsuda, C., Miura, M., Moriyama, S., Nakahata, M., Obayashi, Y., Ogawa, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takeuchi, Y., Ueshima, K., Higuchi, I., Ishihara, C., Ishitsuka, M., Kajita, T., Kaneyuki, K., Mitsuka, G., Nakayama, S., Nishino, H., Okumura, K., Saji, C., Totsuka, Y., Clark, S., Desai, S., Dufour, F., Herfurth, A., Kearns, E., Likhoded, S., Litos, M., Raaf, J.L., Stone, J.L., Sulak, L.R., Wang, W., Goldhaber, M., Casper, D., Cravens, J.P., Dunmore, J., Griskevich, J., Kropp, W.R., Liu, D.W., Mine, S., Regis, C., Smy, M.B., Sobel, H.W., Vagins, M.R., Ganezer, K.S., Hill, J.E., Keig, W.E., Jang, J.S., Kim, J.Y., Lim, I.T., Scholberg, K., Tanimoto, N., Walter, C.W., Wendell, R., Ellsworth, R.W., Tasaka, S., Guillian, E., Learned, J.G., Matsuno, S., Messier, M.D., Ichikawa, A.K., Ishida, T., Ishii, T., Iwashita, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nishikawa, K., Nitta, K., Oyama, Y., Suzuki, A.T., Hasegawa, M., Hiraide, K., Kato, I., Maesaka, H., Nakaya, T., Sasaki, T., Sato, H., Yamamoto, S., Yokoyama, M., Haines, T.J., Dazeley, S., Hatakeyama, S., Svoboda, R., Sullivan, G.W., Gran, R., Habig, A., Fukuda, Y., Sato, T., Itow, Y., Koike, T., Jung, C.K., Kato, T., Kobayashi, K., Malek, M., McGrew, C., Sarrat, A., Terri, R., Yanagisawa, C., Tamura, N., Sakuda, M., Sugihara, M., Kuno, Y., Yoshida, M., Kim, S.B., Ishizuka, T., Okazawa, H., Choi, Y., Seo, H.K., Gando, Y., Hasegawa, T., Inoue, K., Ishii, H., Nishijima, K., Ishino, H., Watanabe, Y., Koshiba, M., Chen, S., Deng, Z., Liu, Y., Kielczewska, D., Zalipska, J., Berns, H.G., Shiraishi, K.K., Washburn, K., Wilkes, R.J.

Phys.Lett.B 647 ( 1 ) 18 - 22 2007年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1016/j.physletb.2007.01.047

Web of Science

arXiv

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Search for Supernova Neutrino Bursts at Super-Kamiokande 査読

Ikeda, M., Takeda, A., Fukuda, Y., Vagins, M.R., Abe, K., Iida, T., Ishihara, K., Kameda, J., Koshio, Y., Minamino, A., Mitsuda, C., Miura, M., Moriyama, S., Nakahata, M., Obayashi, Y., Ogawa, H., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeuchi, Y., Ueshima, K., Watanabe, H., Yamada, S., Higuchi, I., Ishihara, C., Ishitsuka, M., Kajita, T., Kaneyuki, K., Mitsuka, G., Nakayama, S., Nishino, H., Okumura, K., Saji, C., Takenaga, Y., Clark, S., Desai, S., Dufour, F., Kearns, E., Likhoded, S., Litos, M., Raaf, J.L., Stone, J.L., Sulak, L.R., Wang, W., Goldhaber, M., Casper, D., Cravens, J.P., Dunmore, J., Kropp, W.R., Liu, D.W., Mine, S., Regis, C., Smy, M.B., Sobel, H.W., Ganezer, K.S., Hill, J., Keig, W.E., Jang, J.S., Kim, J.Y., Lim, I.T., Scholberg, K., Tanimoto, N., Walter, C.W., Wendell, R., Ellsworth, R.W., Tasaka, S., Guillian, G., Learned, J.G., Matsuno, S., Messier, M.D., Hayato, Y., Ichikawa, A.K., Ishida, T., Ishii, T., Iwashita, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nitta, K., Oyama, Y., Totsuka, Y., Suzuki, A.T., Hasegawa, M., Hiraide, K., Maesaka, H., Nakaya, T., Nishikawa, K., Sasaki, T., Yamamoto, S., Yokoyama, M., Haines, T.J., Dazeley, S., Hatakeyama, S., Svoboda, R., Sullivan, G.W., Turcan, D., Habig, A., Sato, T., Itow, Y., Koike, T., Tanaka, T., Jung, C.K., Kato, T., Kobayashi, K., Malek, M., McGrew, C., Sarrat, A., Terri, R., Yanagisawa, C., Tamura, N., Idehara, Y., Sakuda, M., Sugihara, M., Kuno, Y., Yoshida, M., Kim, S.B., Yang, B.S., Yoo, J., Ishizuka, T., Okazawa, H., Choi, Y., Seo, H.K., Gando, Y., Hasegawa, T., Inoue, K., Furuse, Y., Ishii, H., Nishijima, K., Ishino, H., Watanabe, Y., Koshiba, M., Chen, S., Deng, Z., Liu, Y., Kielczewska, D., Zalipska, J., Berns, H., Gran, R., Shiraishi, K.K., Stachyra, A., Thrane, E., Washburn, K., Wilkes, R.J.

Astrophys.J. 669 519 - 524 2007年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1086/521547

arXiv

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Total dose effects on 0.15 mu m FD-SOI CMOS transistors 査読

Y. Ikegami, Y. Arai, K. Hara, A. Hazurni, H. Ikeda, H. Ishino, T. Kohriki, H. Miyake, A. Mochizuki, S. Terada, T. Tsuboyama, Y. Unno

2007 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOLS 1-11 2173 - + 2007年

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記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）出版者・発行元：IEEE

The silicon-on-insulator (SOI) CMOS technology has a number of advantages over the standard bulk CMOS technology such as negligible latch-up probability, high speed and low power dissipation. The fully depleted SOI (FD-SOI) CMOS technology provided by OKI Electric Industry Co., Ltd. is realizing the full features of the advantages. Although the total dose response of SOI devices is more complex due to the presence of the buried oxide, high radiation tolerance is expected for a very thin silicon layer. We investigated the total dose effects on transistors fabricated using the OKI 0.15 mu m FD-SOI CMOS process. Assuming a radiation environment at the super LHC experiment, we have irradiated with 70 MeV protons three chips each to 6.4 x10(13,) 5.8x10(14), and 5.5x10(15) n(eq)/cm(2). In this paper we report the latest results in comparison with the data taken in a 2006 exposure test.

Web of Science

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SOI pixel developments in a 0.15 mu m technology 査読

Y. Arai, Y. Ikegami, Y. Unno, T. Tsuboyama, S. Terada, M. Hazumi, T. Kohriki, H. Ikeda, K. Hara, H. Miyake, H. Ishino, G. Varner, E. Martin, H. Tajima, M. Ohno, K. Fukuda, H. Komatsubara, J. Ida, H. Hayashi, Y. Kawai

2007 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOLS 1-11 1040 - 1046 2007年

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記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）出版者・発行元：IEEE

While the SOI (Silicon-On-Insulator) device concept is very old, commercialization of the technology is relatively new and growing rapidly in high-speed processor and low-power applications. Furthermore, features such as latch-up immunity, radiation hardness and high-temperature operation are very attractive in high energy and space applications.
Once high-quality bonded SOI wafers became available in the late 90s, it opened up the possibility to get two different kinds of Si on a single wafer. This makes it possible to realize an ideal pixel detector; pairing a fully-depleted radiation sensor with CMOS circuitry in an industrial technology.
In 2005 we started Si pixel R&D with OKI Electric Ind. Co., Ltd. which is the first market supplier of Fully-Depleted SOI products. We have developed processes for p+/n+ implants to the substrate and for making connections between the implants and circuits in the OKI 0.15mm FD-SOI CMOS process.
We have preformed two Multi Project Wafer (MPW) runs using this SOI process. We hosted the second NOW run and invited foreign universities and laboratories to join this MPW run in addition to Japanese universities and laboratories.
Features of these SOI devices and experiences with SOI pixel development are presented.

Web of Science

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New Measurements Using External Photon Conversion at a High Luminosity B Factory

H. Ishino, M. Hazumi, M. Nakao, T. Yoshikawa

arXiv:hep-ex 0703039 1 - 4 2007年

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記述言語：英語

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Total dose effects on 0.15μm FD-SOI CMOS transistors 査読

Y. Ikegami, Y. Arai, K. Hara, M. Hazumi, H. Ikeda, H. Ishino, T. Kohriki, H. Miyake, A. Mochizuki, S. Terada, T. Tsuboyama, Y. Unno

IEEE Nuclear Science Symposium Conference Record 3 2173 - 2177 2007年

　詳細を見る

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）

The silicon-on-insulator (SOI) CMOS technology has a number of advantages over the standard bulk CMOS technology such as negligible latch-up probability, high speed and low power dissipation. The fully depleted SOI (FD-SOI) CMOS technology provided by OKI Electric Industry Co., Ltd. is realizing the full features of the advantages. Although the total dose response of SOI devices is more complex due to the presence of the buried oxide, high radiation tolerance is expected for a very thin silicon layer. We investigated the total dose effects on transistors fabricated using the OKI 0.15μm FD-SOI CMOS process. Assuming a radiation environment at the super LHC experiment, we have irradiated with 70 MeV protons three chips each to 6.4×1013, 5.8×1014, and 5.5×1015 neq/cm 2. In this paper we report the latest results in comparison with the data taken in a 2006 exposure test. © 2007 IEEE.

DOI： 10.1109/NSSMIC.2007.4436582

Web of Science

Scopus

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SOI pixel developments in a 0.15μm technology 査読

Y. Arai, Y. Ikegami, Y. Unno, T. Tsuboyama, S. Terada, M. Hazumi, T. Kohriki, H. Ikeda, K. Hara, H. Miyake, H. Ishino, G. Varner, E. Martin, H. Tajima, M. Ohno, K. Fukuda, H. Komatsubara, J. Ida, H. Hayashi, Y. Kawai

IEEE Nuclear Science Symposium Conference Record 2 1040 - 1046 2007年

　詳細を見る

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）

While the SOI (Silicon-On-Insulator) device concept is very old, commercialization of the technology is relatively new and growing rapidly in high-speed processor and low-power applications. Furthermore, features such as latch-up immunity, radiation hardness and high-temperature operation are very attractive in high energy and space applications. Once high-quality bonded SOI wafers became available in the late 90s, it opened up the possibility to get two different kinds of Si on a single wafer. This makes it possible to realize an ideal pixel detector
pairing a fully-depleted radiation sensor with CMOS circuitry in an industrial technology. In 2005 we started Si pixel R&amp
D with OKI Electric Ind. Co., Ltd. which is the first market supplier of Fully-Depleted SOI products. We have developed processes for p+/n+ implants to the substrate and for making connections between the implants and circuits in the OKI 0.15mm FD-SOI CMOS process. We have preformed two Multi Project Wafer (MPW) runs using this SOI process. We hosted the second MPW run and invited foreign universities and laboratories to join this MPW run in addition to Japanese universities and laboratories. Features of these SOI devices and experiences with SOI pixel development are presented. ©2007 IEEE.

DOI： 10.1109/NSSMIC.2007.4437189

Web of Science

Scopus

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Belle silicon vertex detector for the Super B Factory 査読

M. Friedl, H. Aihara, T. Arakawa, Y. Asano, T. Aso, A. Bakich, M. Barbero, T. Browder, M. C. Chang, Y. Chao, K. F. Chen, S. Chidzik, A. Chouvikov, Y. K. Choi, J. Dalseno, S. Fratina, Y. Fujiyama, J. Haba, K. Hara, T. Hara, B. Harrop, K. Hayashi, M. Hazumi, D. Heffernan, T. Higuchi, T. Hirakawa, C. Irmler, H. Ishino, S. Kajiwara, H. Kakuno, T. Kameshima, T. Kawasaki, A. Kibayashi, Y. J. Kim, S. Koike, S. Korpar, P. Krizan, H. Kurashiro, A. Kusaka, D. Marlow, H. Matsumoto, H. Miyake, G. R. Moloney, Y. Nakahama, Z. Natkaniec, S. Okuno, S. Ono, Y. Onuki, W. Ostrowicz, H. Ozaki, L. Peak, M. Pernicka, M. Rosen, M. Rozanska, N. Sato, S. Schmid, J. Schumann, S. Stanic, H. Steininger, K. Sumisawa, O. Tajima, K. Takahashi, N. Tamura, M. Tanaka, N. Tani, G. N. Taylor, K. Trabelsi, T. Tsuboyama, K. Uchida, K. Ueno, Y. Ushiroda, G. Varner, K. Varvell, Y. S. Velikzhanin, C. C. Wang, M. Z. Wang, M. Watanabe, Y. Watanabe, H. Yamamoto, Y. Yamashita, T. Ziegler

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 569 ( 1 ) 37 - 40 2006年12月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

The silicon vertex detector (SVD2) of the Belle experiment at KEK (Tsukuba, Japan) is currently close to its limits in terms of the occupancy of the innermost layer and the readout dead time. In order to cope with further increase in luminosity, different levels of upgrades are proposed: small improvements are possible in the short term by tuning the current system at the cost of signal-to-noise and crosstalk. In 2007, the two inner layers of the SVD2 will be replaced by similar detectors with faster readout electronics (SVD2.5) and in the long term, a major upgrade of the full silicon vertex detector (SVD3) is envisaged for the KEK Super B Factory. These upgrade scenarios will be discussed in detail from the hardware point of view along with the options under study. (c) 2006 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.nima.2006.09.054

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Evidence of the purely leptonic decay B- -> tau(-)(v)over-bar(tau) 査読

K. Ikado, K. Abe, K. Abe, I. Adachi, H. Aihara, K. Akai, M. Akemoto, D. Anipko, K. Arinstein, V. Aulchenko, T. Aushev, T. Aziz, A. M. Bakich, V. Balagura, M. Barbero, A. Bay, I. Bedny, K. Belous, U. Bitenc, I. Bizjak, A. Bondar, A. Bozek, M. Bracko, T. E. Browder, P. Chang, A. Chen, W. T. Chen, Y. Choi, S. Cole, J. Dalseno, M. Danilov, M. Dash, S. Eidelman, D. Epifanov, J. Flanagan, S. Fratina, K. Furukawa, N. Gabyshev, T. Gershon, A. Go, G. Gokhroo, B. Golob, A. Gorisek, H. Ha, J. Haba, K. Hara, T. Hara, N. C. Hastings, K. Hayasaka, H. Hayashii, M. Hazumi, L. Hinz, T. Hokuue, Y. Hoshi, S. Hou, W. -S. Hou, N. Iida, T. Iijima, A. Imoto, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, T. Kamitani, J. H. Kang, S. U. Kataoka, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, E. Kikutani, H. J. Kim, H. O. Kim, K. Kinoshita, H. Koiso, S. Korpar, P. Krizan, P. Krokovny, R. Kulasiri, R. Kumar, C. C. Kuo, A. Kuzmin, Y. -J. Kwon, J. S. Lange, G. Leder, J. Lee, T. Lesiak, A. Limosani, S. -W. Lin, D. Liventsev, D. Marlow, T. Matsumoto, A. Matyja, S. McOnie, S. Michizono, T. Mimashi, W. Mitaroff, K. Miyabayashi, H. Miyata, Y. Miyazaki, R. Mizuk, T. Nagamine, I. Nakamura, T. T. Nakamura, E. Nakano, M. Nakao, S. Nishida, O. Nitoh, S. Noguchi, T. Nozaki, S. Ogawa, Y. Ogawa, K. Ohmi, T. Ohshima, N. Ohuchi, K. Oide, T. Okabe, S. Okuno, S. L. Olsen, Y. Onuki, W. Ostrowicz, H. Ozaki, P. Pakhlov, C. W. Park, H. Park, R. Pestotnik, L. E. Piilonen, A. Poluektov, M. Rozanska, Y. Sakai, T. Schietinger, O. Schneider, C. Schwanda, K. Senyo, M. E. Sevior, M. Shapkin, H. Shibuya, T. Shidara, B. Shwartz, V. Sidorov, A. Sokolov, A. Somov, S. Stanic, M. Staric, H. Stoeck, K. Sumisawa, T. Sumiyoshi, S. Suzuki, O. Tajima, F. Takasaki, K. Tamai, N. Tamura, M. Tanaka, M. Tawada, G. N. Taylor, Y. Teramoto, X. C. Tian, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, S. Uehara, T. Uglov, K. Ueno, Y. Unno, S. Uno, Y. Usov, G. Varner, S. Villa, C. C. Wang, C. H. Wang, Y. Watanabe, E. Won, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, M. Yoshida, Y. Yusa, L. M. Zhang, Z. P. Zhang, V. Zhilich, D. Zuercher

PHYSICAL REVIEW LETTERS 97 ( 25 ) 1 - 6 2006年12月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We present the first evidence of the decay B-->tau(-)nu(tau), using 414 fb(-1) of data collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. Events are tagged by fully reconstructing one of the B mesons in hadronic modes. We detect the signal with a significance of 3.5 standard deviations including systematics and measure the branching fraction to be B(B-->tau(-)nu(tau))=(1.79(-0.49)(+0.56)(stat)(-0.51)(+0.46)(syst))x10(-4). This implies that f(B)=0.229(-0.031)(+0.036)(stat)(-0.037)(+0.034)(syst) GeV and is the first direct measurement of this quantity.

DOI： 10.1103/PhysRevLett.97.251802

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Time-dependent CP asymmetries in B-0 -> K-s(0)pi(0)gamma transitions 査読

Y. Ushiroda, K. Sumisawa, K. Abe, K. Abe, I. Adachi, H. Aihara, D. Anipko, K. Arinstein, A. M. Bakich, E. Barberio, M. Barbero, A. Bay, I. Bedny, K. Belous, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, A. Bozek, M. Bracko, J. Brodzicka, T. E. Browder, P. Chang, Y. Chao, A. Chen, K. -F. Chen, W. T. Chen, B. G. Cheon, R. Chistov, Y. Choi, Y. K. Choi, S. Cole, J. Dalseno, M. Dash, S. Eidelman, N. Gabyshev, T. Gershon, A. Go, B. Golob, H. Ha, J. Haba, K. Hara, M. Hazumi, D. Heffernan, T. Higuchi, Y. Hoshi, S. Hou, W. -S. Hou, T. Iijima, K. Ikado, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, J. H. Kang, N. Katayama, H. Kawai, T. Kawasaki, H. R. Khan, H. Kichimi, H. J. Kim, Y. J. Kim, K. Kinoshita, P. Krizan, R. Kulasiri, R. Kumar, A. Kuzmin, Y. -J. Kwon, M. J. Lee, S. E. Lee, T. Lesiak, A. Limosani, S. -W. Lin, F. Mandl, D. Marlow, T. Matsumoto, A. Matyja, S. McOnie, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, G. R. Moloney, T. Mori, E. Nakano, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, O. Nitoh, S. Noguchi, S. Ogawa, T. Ohshima, S. Okuno, Y. Onuki, H. Ozaki, P. Pakhlov, C. W. Park, H. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, Y. Sakai, N. Satoyama, T. Schietinger, O. Schneider, J. Schumann, A. J. Schwartz, R. Seidl, K. Senyo, M. E. Sevior, M. Shapkin, H. Shibuya, J. B. Singh, A. Somov, N. Soni, M. Staric, H. Stoeck, S. Suzuki, S. Y. Suzuki, O. Tajima, F. Takasaki, K. Tamai, M. Tanaka, G. N. Taylor, Y. Teramoto, X. C. Tian, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, S. Uehara, K. Ueno, S. Uno, P. Urquijo, Y. Usov, G. Varner, K. E. Varvell, S. Villa, C. H. Wang, Y. Watanabe, R. Wedd, E. Won, Q. L. Xie, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, L. M. Zhang, Z. P. Zhang, V. Zhilich, A. Zupanc

PHYSICAL REVIEW D 74 ( 11 ) 1 - 6 2006年12月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMERICAN PHYSICAL SOC

We report measurements of CP violation parameters in B-0 -> K-S(0)pi(0)gamma transitions based on a data sample of 535x10(6)B (B) over bar pairs collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. One neutral B meson is fully reconstructed in the B-0 -> K-S(0)pi(0)gamma mode. The flavor of the accompanying B meson is identified from its decay products. We obtain time-dependent and direct CP violation parameters S and A for a K-S(0)pi(0) invariant mass up to 1.8 GeV/c(2) as S-KS(0)pi(0)gamma=-0.10 +/- 0.31 +/- 0.07 and A(KS)(0)pi(0)gamma=-0.20 +/- 0.20 +/- 0.06. For a K-S(0)pi(0) invariant mass near the K-*0(892) resonance, we obtain S-K(*0)gamma=-0.32(-0.33)(+0.36)+/- 0.05 and A(K)(*0)gamma=-0.20 +/- 0.24 +/- 0.05.

DOI： 10.1103/PhysRevD.74.111104

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Belle SVD2 vertex detector 査読

H. Aihara, Y. Asano, T. Aso, A. Bakich, M. Barbero, T. Browder, M. C. Chang, Y. Chao, K. F. Chen, S. Chidzik, A. Chouvikov, J. Dalseno, R. Dowd, R. Fernholz, S. Fratina, M. Friedl, H. Fujii, Y. Fujiyama, J. Haba, K. Hara, T. Hara, B. Harrop, T. Haruyama, K. Hayashi, M. Hazumi, D. Heffernan, T. Higuchi, A. Igarashi, Y. Igarashi, H. Ikeda, H. Ishino, S. Iwaida, T. Kameshima, P. Kapusta, K. Kasami, T. Kawasaki, A. Kibayashi, S. Koike, S. Korpar, P. Krizan, H. Kurashiro, A. Kusaka, T. Lesiak, D. Marlow, H. Matsumoto, Y. Mikami, H. Miyake, G. R. Moloney, Z. Natkaniec, S. Nozaki, R. Ohkubo, S. Okuno, S. Ono, Y. Onuki, W. Ostrowicz, H. Ozaki, L. Peak, M. Pernicka, M. Rosen, M. Rozanska, N. Sato, S. Schmid, J. Schuemann, T. Shibata, R. Stamen, S. Stanic, H. Steininger, K. Sumisawa, J. Suzuki, H. Tajima, O. Tajima, K. Takahashi, F. Takasaki, N. Tamura, M. Tanaka, G. N. Taylor, K. Trabelsi, T. Tsuboyama, K. Uchida, K. Ueno, K. Ueno, Y. Ushiroda, S. Vahsen, G. Varner, K. Varvell, Y. S. Velikzhanin, C. C. Wang, M. Z. Wang, M. Watanabe, Y. Watanabe, H. Yamamoto, Y. Yamashita, M. Yamauchi, R. Yang, Y. Yasu, T. Ziegler, D. Zontar

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 568 ( 1 ) 269 - 273 2006年11月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

A new silicon vertex detector for the Belle experiment has been in operation at the high-luminosity asymmetric energy electron-positron collider KEKB since October 2003. It provides a larger polar angle acceptance, a better vertex resolution and a higher radiation tolerance than the previous one. The obtained performances indicate that the SVD2 works reliably, in very good agreement with expectations. (c) 2006 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.nima.2006.05.281

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Measurement of the quark mixing parameter cos2 phi(1) using time-dependent Dalitz analysis of (B)over-bar(0)-> D[K-S(0)pi(+)pi(-)]h(0) 査読

P. Krokovny, K. Abe, K. Abe, I. Adachi, H. Aihara, D. Anipko, K. Arinstein, Y. Asano, V. Aulchenko, T. Aushev, S. Bahinipati, A. M. Bakich, V. Balagura, E. Barberio, A. Bay, U. Bitenc, I. Bizjak, A. Bondar, A. Bozek, M. Bracko, T. E. Browder, Y. Chao, A. Chen, W. T. Chen, Y. Choi, A. Chuvikov, S. Cole, J. Dalseno, M. Danilov, M. Dash, S. Eidelman, D. Epifanov, S. Fratina, N. Gabyshev, A. Garmash, T. Gershon, A. Go, A. Gorisek, H. Ha, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, T. Higuchi, L. Hinz, T. Hokuue, Y. Hoshi, S. Hou, W. -S. Hou, Y. B. Hsiung, T. Iijima, K. Ikado, A. Imoto, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, J. H. Kang, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, S. M. Kim, K. Kinoshita, S. Korpar, P. Krizan, R. Kulasiri, R. Kumar, C. C. Kuo, A. Kuzmin, Y. -J. Kwon, J. Lee, T. Lesiak, J. Li, S. -W. Lin, G. Majumder, T. Matsumoto, S. McOnie, W. Mitaroff, K. Miyabayashi, Y. Miyazaki, T. Mori, I. Nakamura, M. Nakao, S. Nishida, T. Nozaki, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, H. Ozaki, P. Pakhlov, C. W. Park, H. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, A. Poluektov, M. Rozanska, Y. Sakai, T. R. Sarangi, N. Sato, N. Satoyama, T. Schietinger, O. Schneider, K. Senyo, H. Shibuya, B. Shwartz, J. B. Singh, A. Sokolov, A. Somov, N. Soni, R. Stamen, M. Staric, H. Stoeck, K. Sumisawa, O. Tajima, F. Takasaki, K. Tamai, M. Tanaka, Y. Teramoto, X. C. Tian, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, S. Uehara, K. Ueno, S. Uno, P. Urquijo, Y. Ushiroda, G. Varner, K. E. Varvell, S. Villa, C. C. Wang, C. H. Wang, Y. Watanabe, E. Won, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, J. Ying, L. M. Zhang, Z. P. Zhang, V. Zhilich

PHYSICAL REVIEW LETTERS 97 ( 8 ) 1 - 6 2006年8月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We present a measurement of the angle phi(1) of the Cabibbo-Kobayashi-Maskawa unitarity triangle using a time-dependent Dalitz analysis of D -> K-S(0)pi(+)pi(-) decays produced in neutral B meson decay to a neutral D meson and a light meson ((B) over bar (0)-> D((*))h(0)). The method allows a direct extraction of 2 phi(1) and, therefore, helps to resolve the ambiguity between 2 phi(1) and pi-2 phi(1) in the measurement of sin2 phi(1). We obtain sin2 phi(1)=0.78 +/- 0.44 +/- 0.22 and cos2 phi(1)=1.87(-0.53-0.32)(+0.40+0.22). The sign of cos2 phi(1) is determined to be positive at 98.3% C.L.

DOI： 10.1103/PhysRevLett.97.081801

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Measurement of forward-backward asymmetry and wilson coefficients in B -> K(*)l(+)l(-) 査読

A. Ishikawa, K. Abe, I. Adachi, H. Aihara, D. Anipko, Y. Asano, T. Aushev, A. M. Bakich, V. Balagura, M. Barbero, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, A. Bozek, M. Bracko, T. E. Browder, P. Chang, Y. Chao, A. Chen, B. G. Cheon, Y. Choi, Y. K. Choi, A. Chuvikov, J. Dalseno, M. Danilov, M. Dash, A. Drutskoy, S. Eidelman, S. Fratina, N. Gabyshev, T. Gershon, G. Gokhroo, B. Golob, A. Gorisek, H. Ha, J. Haba, T. Hara, K. Hayasaka, H. Hayashii, M. Hazumi, L. Hinz, T. Hokuue, Y. Hoshi, S. Hou, W. -S. Hou, Y. B. Hsiung, T. Iijima, K. Ikado, K. Inami, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, J. H. Kang, S. U. Kataoka, N. Katayama, H. Kawai, T. Kawasaki, H. R. Khan, H. Kichimi, S. K. Kim, S. M. Kim, K. Kinoshita, S. Korpar, P. Krizan, R. Kulasiri, R. Kumar, C. C. Kuo, Y. -J. Kwon, J. Lee, S. E. Lee, T. Lesiak, J. Li, A. Limosani, S. -W. Lin, D. Liventsev, G. Majumder, F. Mandl, T. Matsumoto, A. Matyja, S. McOnie, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, G. R. Moloney, T. Nagamine, E. Nakano, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, T. Nozaki, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, Y. Onuki, H. Ozaki, C. W. Park, R. Pestotnik, L. E. Piilonen, M. Rozanska, Y. Sakai, N. Sato, N. Satoyama, T. Schietinger, O. Schneider, C. Schwanda, A. J. Schwartz, R. Seidl, K. Senyo, M. E. Sevior, M. Shapkin, H. Shibuya, A. Somov, N. Soni, R. Stamen, S. Stanic, M. Staric, H. Stoeck, K. Sumisawa, S. Suzuki, O. Tajima, F. Takasaki, K. Tamai, N. Tamura, M. Tanaka, G. N. Taylor, Y. Teramoto, X. C. Tian, K. Trabelsi, T. Tsukamoto, S. Uehara, S. Uno, P. Urquijo, Y. Ushiroda, Y. Usov, G. Varner, S. Villa, C. C. Wang, C. H. Wang, M. -Z. Wang, Y. Watanabe, E. Won, Q. L. Xie, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, J. Ying, Y. Yusa, J. Zhang, L. M. Zhang, Z. P. Zhang

PHYSICAL REVIEW LETTERS 96 ( 25 ) 1 - 6 2006年6月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report the first measurement of the forward-backward asymmetry and the ratios of Wilson coefficients A(9)/A(7) and A(10)/A(7) in B -> K(*)l(+)l(-), where l represents an electron or a muon. We find evidence for the forward-backward asymmetry with a significance of 3.4 sigma. The results are obtained from a data sample containing 386x10(6) (B) over bar pairs that were collected on the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider.

DOI： 10.1103/PhysRevLett.96.251801

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Observation of b -> d gamma and determination of vertical bar V-td/V-ts vertical bar 査読

D. Mohapatra, M. Nakao, S. Nishida, K. Abe, K. Abe, I. Adachi, H. Aihara, D. Anipko, K. Arinstein, Y. Asano, V. Aulchenko, T. Aushev, S. Bahinipati, A. M. Bakich, V. Balagura, M. Barbero, I. Bedny, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, A. Bozek, M. Bracko, T. E. Browder, Y. Chao, A. Chen, K. -F. Chen, W. T. Chen, B. G. Cheon, R. Chistov, Y. Choi, A. Chuvikov, S. Cole, J. Dalseno, M. Danilov, M. Dash, J. Dragic, A. Drutskoy, S. Eidelman, D. Epifanov, S. Fratina, N. Gabyshev, T. Gershon, G. Gokhroo, B. Golob, A. Gorisek, H. C. Ha, J. Haba, T. Hara, N. C. Hastings, K. Hayasaka, H. Hayashii, M. Hazumi, L. Hinz, T. Hokuue, Y. Hoshi, S. Hou, W. -S. Hou, Y. B. Hsiung, T. Iijima, A. Imoto, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, J. H. Kang, S. U. Kataoka, N. Katayama, T. Kawasaki, H. R. Khan, H. Kichimi, H. J. Kim, H. O. Kim, S. M. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kulasiri, R. Kumar, C. C. Kuo, A. Kuzmin, Y. -J. Kwon, J. S. Lange, G. Leder, J. Lee, T. Lesiak, A. Limosani, S. -W. Lin, D. Liventsev, G. Majumder, F. Mandl, D. Marlow, T. Matsumoto, A. Matyja, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, G. R. Moloney, T. Mori, E. Nakano, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, H. Ozaki, P. Pakhlov, H. Palka, C. W. Park, N. Parslow, L. S. Peak, R. Pestotnik, L. E. Piilonen, A. Poluektov, F. J. Ronga, M. Rozanska, Y. Sakai, T. R. Sarangi, N. Sato, T. Schietinger, O. Schneider, J. Schuemann, C. Schwanda, A. J. Schwartz, R. Seidl, M. E. Sevior, M. Shapkin, H. Shibuya, B. Shwartz, V. Sidorov, A. Sokolov, A. Somov, N. Soni, R. Stamen, S. Stanic, M. Staric, T. Sumiyoshi, S. Suzuki, O. Tajima, F. Takasaki, K. Tamai, N. Tamura, M. Tanaka, G. N. Taylor, Y. Teramoto, X. C. Tian, K. Trabelsi, T. Tsukamoto, S. Uehara, T. Uglov, K. Ueno, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, K. E. Varvell, S. Villa, C. C. Wang, C. H. Wang, M. -Z. Wang, Y. Watanabe, J. Wicht, E. Won, Q. L. Xie, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, J. Ying, Y. Yusa, L. M. Zhang, Z. P. Zhang, V. Zhilich, D. Zurcher

PHYSICAL REVIEW LETTERS 96 ( 22 ) 1 - 5 2006年6月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report the observation of the flavor-changing neutral current process b -> d gamma using a sample of 386 x 10(6) B meson pairs accumulated by the Belle detector at the KEKB e(+)e(-) collider. We measure branching fractions for the exclusive modes B- -> rho(-)gamma, (B) over bar (0) -> rho(0)gamma, and (B) over bar (0) -> omega gamma. Assuming that these three modes are related by isospin, we find B((B) over bar -> (rho, omega)gamma) = (1.32(-0.31)(+0.34)(stat)(-0.09)(+0.10)(syst)) x 10(-6) with a significance of 5.1 sigma. This result is used to determine the ratio of Cabibbo-Kobayashi-Maskawa matrix elements vertical bar V-td/V-ts vertical bar to be 0.199(-0.025)(+0.026)(exp)(-0.015)(+0.018)(theor).

DOI： 10.1103/PhysRevLett.96.221601

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Measurement of phi(3) with a Dalitz plot analysis of B+->(DK(*)+)-K-(*) decay 査読

A. Poluektov, K. Abe, K. Abe, I. Adachi, H. Aihara, D. Anipko, K. Arinstein, T. Aushev, S. Bahinipati, A. M. Bakich, V. Balagura, E. Barberio, M. Barbero, I. Bedny, K. Belous, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, A. Bozek, M. Bracko, T. E. Browder, P. Chang, Y. Chao, A. Chen, W. T. Chen, B. G. Cheon, R. Chistov, Y. Choi, A. Chuvikov, J. Dalseno, M. Danilov, M. Dash, A. Drutskoy, S. Eidelman, D. Epifanov, S. Fratina, N. Gabyshev, A. Garmash, T. Gershon, G. Gokhroo, B. Golob, A. Gorisek, J. Haba, T. Hara, K. Hayasaka, H. Hayashii, M. Hazumi, T. Hokuue, Y. Hoshi, W. -S. Hou, T. Iijima, K. Ikado, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, Y. Iwasaki, H. Kawai, T. Kawasaki, H. R. Khan, H. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kulasiri, R. Kumar, C. C. Kuo, A. Kuzmin, Y. -J. Kwon, J. Lee, T. Lesiak, J. Li, D. Liventsev, J. MacNaughton, G. Majumder, F. Mandl, D. Marlow, T. Matsumoto, A. Matyja, S. McOnie, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, D. Mohapatra, T. Nagamine, I. Nakamura, E. Nakano, Z. Natkaniec, S. Nishida, O. Nitoh, S. Noguchi, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, Y. Onuki, H. Ozaki, P. Pakhlov, H. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, Y. Sakai, T. R. Sarangi, N. Sato, N. Satoyama, K. Sayeed, T. Schietinger, O. Schneider, A. J. Schwartz, R. Seidl, M. E. Sevior, M. Shapkin, H. Shibuya, B. Shwartz, J. B. Singh, A. Sokolov, A. Somov, R. Stamen, S. Stanic, M. Staric, H. Stoeck, K. Sumisawa, S. Suzuki, S. Y. Suzuki, F. Takasaki, M. Tanaka, Y. Teramoto, X. C. Tian, K. Trabelsi, T. Tsukamoto, S. Uehara, T. Uglov, K. Ueno, Y. Unno, S. Uno, P. Urquijo, Y. Ushiroda, Y. Usov, G. Varner, K. E. Varvell, S. Villa, C. H. Wang, Y. Watanabe, E. Won, Q. L. Xie, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, J. Ying, L. M. Zhang, Z. P. Zhang, V. Zhilich, D. Zuercher

PHYSICAL REVIEW D 73 ( 11 ) 1 - 16 2006年6月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We present a measurement of the unitarity triangle angle phi(3) using a Dalitz plot analysis of the K-S(0)pi(+)pi(-) decay of the neutral D meson from the B-+/-->(DK(*)+/-)-K-(*) process. The method exploits the interference between D-0 and (D) over bar (0) to extract the angle phi(3), strong phase delta and the ratio r of suppressed and allowed amplitudes. We apply this method to a 357 fb(-1) data sample collected by the Belle experiment. The analysis uses three modes: B+-> DK+, B+->(DK+)-K-* with D-*-> D pi(0), and B+-> DK*+ with K*+-> K-S(0)pi(+), as well as the corresponding charge-conjugate modes. From a combined maximum likelihood fit to the three modes, we obtain phi(3)=53 degrees(+15 degrees s)(-18 degrees)(stat)+/- 3 degrees(syst)+/- 9 degrees(model). The corresponding 2 standard deviation interval is 8 degrees <phi(3)< 111 degrees.

DOI： 10.1103/PhysRevD.73.112009

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Measurement of branching fraction and direct CP asymmetry in B-0 -> rho(0)pi(0) decays 査読

J. Dragic, K. Abe, K. Abe, I. Adachi, H. Aihara, D. Anipko, Y. Asano, T. Aushev, S. Bahinipati, A. M. Bakich, V. Balagura, M. Barbero, A. Bay, I. Bedny, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, A. Bozek, M. Bracko, J. Brodzicka, T. E. Browder, M. -C. Chang, P. Chang, Y. Chao, A. Chen, W. T. Chen, B. G. Cheon, R. Chistov, Y. Choi, Y. K. Choi, A. Chuvikov, S. Cole, J. Dalseno, M. Danilov, M. Dash, A. Drutskoy, S. Eidelman, N. Gabyshev, A. Garmash, T. Gershon, A. Go, G. Gokhroo, B. Golob, A. Gorisek, H. C. Ha, J. Haba, T. Hara, N. C. Hastings, K. Hayasaka, H. Hayashii, M. Hazumi, L. Hinz, Y. Hoshi, S. Hou, W. -S. Hou, Y. B. Hsiung, T. Iijima, K. Ikado, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, C. Jacoby, J. H. Kang, P. Kapusta, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, S. K. Kim, S. M. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kulasiri, C. C. Kuo, A. Kusaka, A. Kuzmin, Y. -J. Kwon, G. Leder, J. Lee, T. Lesiak, J. Li, A. Limosani, S. -W. Lin, D. Liventsev, J. MacNaughton, F. Mandl, D. Marlow, T. Matsumoto, Y. Mikami, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, D. Mohapatra, T. Mori, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, W. Ostrowicz, H. Ozaki, C. W. Park, H. Park, R. Pestotnik, L. E. Piilonen, M. Rozanska, Y. Sakai, T. R. Sarangi, N. Sato, N. Satoyama, T. Schietinger, O. Schneider, J. Schuemann, C. Schwanda, A. J. Schwartz, R. Seidl, K. Senyo, M. E. Sevior, M. Shapkin, H. Shibuya, B. Shwartz, J. B. Singh, A. Sokolov, A. Somov, N. Soni, R. Stamen, S. Stanic, M. Staric, K. Sumisawa, T. Sumiyoshi, S. Suzuki, O. Tajima, F. Takasaki, K. Tamai, N. Tamura, M. Tanaka, G. N. Taylor, Y. Teramoto, X. C. Tian, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, S. Uehara, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Ushiroda, Y. Usov, G. Varner, S. Villa, C. C. Wang, C. H. Wang, M. -Z. Wang, Y. Watanabe, J. Wicht, E. Won, Q. L. Xie, B. D. Yabsley, A. Yamaguchi, M. Yamauchi, J. Ying, C. C. Zhang, J. Zhang, L. M. Zhang, Z. P. Zhang, V. Zhilich, D. Zuercher

PHYSICAL REVIEW D 73 ( 11 ) 1 - 6 2006年6月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report a measurement of the branching fraction of the decay B-0 ->rho(0)pi(0), using 386x10(6) B (B) over bar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We detect 51(-13)(+14) signal events with a significance of 4.2 standard deviations, including systematic uncertainties, and measure the branching fraction to be B(B-0 ->rho(0)pi(0))=(3.12(-0.82)(+0.88)(stat)+/- 0.33(syst)(-0.68)(+0.50)(model))x10(-6). We also perform the first measurement of direct CP violating asymmetry in this mode.

DOI： 10.1103/PhysRevD.73.111105

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Measurement of CP violation in B-0 -> D*-pi(+) and B-0 -> D-pi(+) decays 査読

F. J. Ronga, T. R. Sarangi, K. Abe, I. Adachi, H. Aihara, D. Anipko, K. Arinstein, Y. Asano, T. Aushev, S. Bahinipati, A. M. Bakich, V. Balagura, E. Barberio, M. Barbero, K. Belous, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, A. Bozek, M. Bracko, T. E. Browder, P. Chang, A. Chen, W. T. Chen, B. G. Cheon, R. Chistov, Y. Choi, A. Chuvikov, J. Dalseno, M. Danilov, M. Dash, A. Drutskoy, S. Eidelman, D. Epifanov, S. Fratina, N. Gabyshev, A. Garmash, T. Gershon, G. Gokhroo, B. Golob, A. Gorisek, J. Haba, K. Hara, T. Hara, K. Hayasaka, H. Hayashii, M. Hazumi, T. Higuchi, L. Hinz, T. Hokuue, Y. Hoshi, S. Hou, W. -S. Hou, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, Y. Iwasaki, J. H. Kang, H. Kawai, T. Kawasaki, H. R. Khan, H. J. Kim, K. Kinoshita, S. Korpar, P. Krokovny, R. Kulasiri, R. Kumar, C. C. Kuo, Y. -J. Kwon, G. Leder, J. Lee, T. Lesiak, J. Li, A. Limosani, D. Liventsev, G. Majumder, F. Mandl, T. Matsumoto, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, D. Mohapatra, T. Nagamine, I. Nakamura, E. Nakano, Z. Natkaniec, S. Nishida, O. Nitoh, S. Noguchi, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, Y. Onuki, P. Pakhlov, C. W. Park, H. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, A. Poluektov, M. Rozanska, Y. Sakai, N. Sato, N. Satoyama, K. Sayeed, T. Schietinger, O. Schneider, A. J. Schwartz, R. Seidl, K. Senyo, M. E. Sevior, M. Shapkin, H. Shibuya, B. Shwartz, J. B. Singh, A. Sokolov, A. Somov, N. Soni, R. Stamen, S. Stanic, M. Staric, H. Stoeck, K. Sumisawa, S. Suzuki, S. Y. Suzuki, F. Takasaki, M. Tanaka, Y. Teramoto, X. C. Tian, K. Trabelsi, T. Tsukamoto, S. Uehara, K. Ueno, S. Uno, P. Urquijo, Y. Ushiroda, Y. Usov, G. Varner, K. E. Varvell, S. Villa, C. H. Wang, Y. Watanabe, E. Won, Q. L. Xie, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, J. Ying, C. C. Zhang, L. M. Zhang, Z. P. Zhang, V. Zhilich, D. Zuercher

PHYSICAL REVIEW D 73 ( 9 ) 1 - 17 2006年5月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report measurements of time-dependent decay rates for B-0 -> D(*)-pi(+) decays and extraction of CP violation parameters that depend on phi(3). Using fully reconstructed D-(*)pi events and partially reconstructed D-*pi events from a data sample that contains 386x10(6) B (B) over bar pairs that was collected near the Upsilon(4S) resonance, with the Belle detector at the KEKB asymmetric energy e(+)e(-) collider, we obtain the CP violation parameters S+(D-(*)pi) and S-(D-(*)pi). We obtain S+(D-*pi)=0.049 +/- 0.020(stat)+/- 0.011(sys), S-(D-*pi)=0.031 +/- 0.019(stat)+/- 0.011(sys), and S+(D pi)=0.031 +/- 0.030(stat)+/- 0.012(sys), S-(D pi)=0.068 +/- 0.029(stat)+/- 0.012(sys). These results are an indication of CP violation in B-0 -> D*-pi(+) and B-0 -> D-pi(+) decays at the 2.5 sigma and 2.2 sigma levels, respectively. If we use the values of R-D((*))pi that are derived using assumptions of factorization and SU(3) symmetry, branching fraction measurements for the B -> D-s((*))pi modes, and lattice QCD calculations, we can restrict the allowed region of \sin(2 phi(1)+phi(3)\ to be above 0.44 and 0.52 at 68% confidence level from the D-*pi and D pi modes, respectively.

DOI： 10.1103/PhysRevD.73.092003

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Measurement of the branching fraction, polarization, and CP asymmetry for B-0 ->rho(+)rho(-) decays, and determination of the Cabibbo-Kobayashi-Maskawa phase phi(2) 査読

A Somov, AJ Schwartz, K Abe, K Abe, Adachi, I, H Aihara, D Anipko, K Arinstein, Y Asano, Aulchenko, V, T Aushev, T Aziz, S Bahinipati, AM Bakich, Balagura, V, A Bay, Bedny, I, K Belous, U Bitenc, Bizjak, I, S Blyth, A Bondar, A Bozek, M Bracko, J Brodzicka, TE Browder, MC Chang, P Chang, Y Chao, A Chen, WT Chen, BG Cheon, R Chistov, SK Choi, Y Choi, YK Choi, A Chuvikov, S Cole, J Dalseno, M Dash, J Dragic, A Drutskoy, S Eidelman, D Epifanov, N Gabyshev, A Garmash, T Gershon, A Go, G Gokhroo, B Golob, K Hara, T Hara, NC Hastings, K Hayasaka, H Hayashii, M Hazumi, Y Hoshi, S Hou, WS Hou, YB Hsiung, T Iijima, K Ikado, K Inami, A Ishikawa, H Ishino, R Itoh, M Iwasaki, Y Iwasaki, JH Kang, P Kapusta, N Katayama, H Kawai, T Kawasaki, H Kichimi, HJ Kim, SK Kim, SM Kim, K Kinoshita, S Korpar, P Krizan, P Krokovny, CC Kuo, A Kusaka, A Kuzmin, YJ Kwon, G Leder, T Lesiak, J Li, A Limosani, SW Lin, J MacNaughton, F Mandl, D Marlow, T Matsumoto, W Mitaroff, K Miyabayashi, H Miyake, H Miyata, Y Miyazaki, R Mizuk, D Mohapatra, Y Nagasaka, M Nakao, Z Natkaniec, S Nishida, O Nitoh, S Noguchi, S Ogawa, T Ohshima, T Okabe, S Okuno, SL Olsen, W Ostrowicz, H Ozaki, H Palka, CW Park, H Park, R Pestotnik, LE Piilonen, A Poluektov, Y Sakai, TR Sarangi, N Sato, T Schietinger, O Schneider, C Schwanda, R Seidl, K Senyo, ME Sevior, M Shapkin, H Shibuya, B Shwartz, Sidorov, V, A Sokolov, N Soni, S Stanic, M Staric, T Sumiyoshi, S Suzuki, O Tajima, F Takasaki, K Tamai, N Tamura, M Tanaka, GN Taylor, Y Teramoto, XC Tian, K Trabelsi, T Tsuboyama, T Tsukamoto, S Uehara, T Uglov, K Ueno, Y Unno, S Uno, P Urquijo, Y Ushiroda, Y Usov, G Varner, S Villa, CH Wang, MZ Wang, Y Watanabe, E Won, QL Xie, BD Yabsley, A Yamaguchi, M Yamauchi, J Ying, LM Zhang, ZP Zhang, Zhilich, V

PHYSICAL REVIEW LETTERS 96 ( 17 ) 1 - 6 2006年5月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We have measured the branching fraction B, longitudinal polarization fraction f(L), and CP asymmetry coefficients A and S for B-0->rho(+)rho(-) decays with the Belle detector at the KEKB e(+)e(-) collider using 253 fb(-1) of data. We obtain B=[22.8 +/- 3.8(stat)(-2.6)(+2.3)(syst)]x10(-6), f(L)=0.941(-0.040)(+0.034)(stat)+/- 0.030(syst), A=0.00 +/- 0.30(stat)+/- 0.09(syst), and S=0.08 +/- 0.41(stat)+/- 0.09(syst). These values are used to constrain the Cabibbo-Kobayashi-Maskawa phase phi(2); the solution consistent with the standard model is phi(2)=(88 +/- 17)degrees or 59 degrees <phi 2 < 115 degrees at 90% C.L.

DOI： 10.1103/PhysRevLett.96.171801

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Status of the Belle silicon vertex detector 査読

Z Natkaniec, H Aihara, Y Asano, T Aso, A Bakich, T Browder, MC Chang, Y Chao, KF Chen, S Chidzik, A Chouvikov, J Dalseno, R Dowd, R Fernholz, S Fratina, M Friedl, H Fujii, Y Fujiyama, J Haba, K Hara, T Hara, B Harrop, T Haruyama, K Hayashi, M Hazumi, D Heffernan, T Higuchi, A Igarashi, Y Igarashi, H Ikeda, H Ishino, S Iwaida, T Kameshima, P Kapusta, K Kasami, T Kawasaki, A Kibayashi, S Koike, S Korpar, P Krizan, H Kurashiro, A Kusaka, T Lesiak, D Marlow, H Matsumoto, Y Mikami, H Miyake, GR Moloney, S Nozaki, R Ohkubo, S Okuno, S Ono, Y Onuki, W Ostrowicz, H Ozaki, L Peak, M Pernicka, M Rosen, M Rozanska, N Sato, S Schmid, J Schumann, T Shibata, R Stamen, S Stanic, H Steininger, K Sumisawa, J Suzuki, H Tajima, H Tajima, K Takahashi, F Takasaki, N Tamura, M Tanaka, GN Taylor, K Trabelsi, W Trischuk, T Tsuboyama, K Uchida, K Ueno, K Ueno, Y Ushiroda, S Vahsen, G Varner, K Varvell, YS Velikzhanin, CC Wang, MZ Wang, M Watanabe, Y Watanabe, H Yamamoto, Y Yamashita, M Yamauchi, R Yang, Y Yasu, T Ziegler, D Zontar

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 560 ( 1 ) 1 - 4 2006年5月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

The old silicon vertex detector (SVD1) of the Belle detector, operating at the high-luminosity asymmetric energy e+e- collider KEKB, was replaced by an upgraded version (SVD2) in 2003. The new detector has modified geometry and redesigned readout electronics, providing a larger polar angle acceptance, better vertex resolution, improved radiation hardness and reduced dead time. The operation of the detector started successfully in October 2003. The basic concepts of the SVD2 design as well as its performance after 10 months of data taking are described in this paper. (c) 2005 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.nima.2005.11.228

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Vertex detector for super Belle experiment 査読

T Kawasaki, M Barbero, M Friedl, J Haba, M Hazumi, D Heffernan, H Ishino, T Kameshima, S Ono, M Pernicka, O Tajima, K Trabelsi, T Tsuboyama, G Varner, M Watanabe

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 560 ( 1 ) 53 - 56 2006年5月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

Using a high resolution silicon vertex detector and a large number of B meson decays, the Belle experiment has succeeded in measuring time-dependent CP asymmetry with high precision. To continue the search for physics beyond the standard model, an upgrade of the KEKB collider to a luminosity of 10(35-36) cm(-2) s(-1) is proposed. Such a luminosity upgrade will also require an upgraded ("Super") Belle experiment. Discussions have started on the conceptual design for the silicon vertexing upgrade of this detector. Since the momenta of particles is not high in B factory operating at the gamma(4S) resonance, it is important to avoid high occupancy while keeping the material budget low. A fast data acquisition system and radiation hardness are also required. In this report, the conceptual design of a vertex detector for the Super Belle experiment is shown. The status of R&D topics is also reported. (c) 2005 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.nima.2005.11.196

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Improved constraints on D-0-(D)over-bar(0) mixing in D-0 -> K+ pi(-) decays from the Belle detector 査読

LM Zhang, ZP Zhang, J Li, K Abe, K Abe, Adachi, I, H Aihara, D Anipko, K Arinstein, Y Asano, T Aushev, S Bahinipati, AM Bakich, Balagura, V, M Barbero, A Bay, Bedny, I, K Belous, U Bitenc, Bizjak, I, S Blyth, A Bondar, A Bozek, M Bracko, J Brodzicka, TE Browder, MC Chang, P Chang, Y Chao, A Chen, WT Chen, BG Cheon, R Chistov, SK Choi, Y Choi, YK Choi, A Chuvikov, S Cole, J Dalseno, M Danilov, M Dash, A Drutskoy, S Eidelman, N Gabyshev, T Gershon, A Go, G Gokhroo, B Golob, A Gorisek, HC Ha, J Haba, T Hara, NC Hastings, K Hayasaka, H Hayashii, M Hazumi, Y Hoshi, S Hou, WS Hou, YB Hsiung, T Iijima, K Ikado, K Inami, A Ishikawa, H Ishino, R Itoh, M Iwasaki, Y Iwasaki, JH Kang, P Kapusta, N Katayama, H Kawai, T Kawasaki, H Kichimi, HJ Kim, SK Kim, SM Kim, K Kinoshita, S Korpar, P Krizan, P Krokovny, R Kulasiri, R Kumar, CC Kuo, A Kuzmin, YJ Kwon, G Leder, J Lee, T Lesiak, SW Lin, D Liventsev, F Mandl, T Matsumoto, Y Mikami, W Mitaroff, K Miyabayashi, H Miyake, H Miyata, Y Miyazaki, R Mizuk, D Mohapatra, T Mori, M Nakao, Z Natkaniec, S Nishida, O Nitoh, T Nozaki, S Ogawa, T Ohshima, T Okabe, S Okuno, SL Olsen, W Ostrowicz, H Ozaki, CW Park, H Park, R Pestotnik, LE Piilonen, Y Sakai, N Sato, N Satoyama, T Schietinger, O Schneider, C Schwanda, AJ Schwartz, R Seidl, K Senyo, ME Sevior, M Shapkin, H Shibuya, B Shwartz, JB Singh, A Sokolov, A Somov, N Soni, R Stamen, S Stanic, M Staric, K Sumisawa, T Sumiyoshi, S Suzuki, F Takasaki, K Tamai, N Tamura, M Tanaka, GN Taylor, Y Teramoto, XC Tian, K Trabelsi, T Tsuboyama, T Tsukamoto, S Uehara, T Uglov, K Ueno, Y Unno, S Uno, P Urquijo, Y Usov, G Varner, S Villa, CC Wang, CH Wang, Y Watanabe, E Won, QL Xie, BD Yabsley, A Yamaguchi, M Yamauchi, J Ying, Y Yuan, CC Zhang, J Zhang, Zhilich, V, D Zurcher

PHYSICAL REVIEW LETTERS 96 ( 15 ) 1 - 6 2006年4月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report the results of a search for D-0-D-0 mixing in D-0-> K(+)pi(-) decays based on 400 fb(-1) of data accumulated by the Belle detector at KEKB. Both assuming CP conservation and allowing for CP violation, we fit the decay-time distribution for the mixing parameters x(') and y('), as well as for the parameter R-D, the ratio of doubly Cabibbo-suppressed decays to Cabibbo-favored decays. The 95% confidence level region in the (x('2),y(')) plane is obtained using a frequentist method. Assuming CP conservation, we find x('2)< 0.72x10(-3) and -9.9x10(-3)< y(')< 6.8x10(-3) at the 95% confidence level; these are the most stringent constraints on the mixing parameters to date. The no-mixing point (0,0) has a confidence level of 3.9%. Assuming no mixing, we measure R-D=(0.377 +/- 0.008 +/- 0.005)%.

DOI： 10.1103/PhysRevLett.96.151801

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27aWL-7 SOI技術によるPixel検出器の開発(27aWL 半導体検出器(1),素粒子実験領域)

新井,康夫, 池上,陽一, 後田,裕, 海野,義信, 田島,治, 坪山,透, 寺田,進, 羽澄,昌史, 池田,博一, 原,和彦, 石野,宏和, 川崎,健夫, Varner,Gary, Martin,Elena, Tajima,Hiro

日本物理学会講演概要集 61 ( 1 ) 18 2006年3月

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記述言語：日本語掲載種別：研究論文（学術雑誌）出版者・発行元：社団法人日本物理学会

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High energy neutrino astronomy using upward-going muons in Super-Kamiokande-I 査読

Abe, K., Hosaka, J., Iida, T., Ishihara, K., Kameda, J., Koshio, Y., Minamino, A., Mitsuda, C., Miura, M., Moriyama, S., Nakahata, M., Obayashi, Y., Ogawa, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takeuchi, Y., Higuchi, I., Ishitsuka, M., Ishitsuka, M., Kajita, T., Kaneyuki, K., Mitsuka, G., Nakayama, S., Nishino, H., Okada, A., Okumura, K., Saji, C., Takenaga, Y., Clark, S., Desai, S., Defour, F., Kearns, E., Likhoded, S., Litos, M., Raaf, J.L., Stone, J.L., Sulak, L.R., Wang, W., Goldhaber, M., Casper, D., Cravens, J.P., Dunmore, J., Kropp, W.R., Liu, D.W., Mine, S., Regis, C., Smy, M.B., Sobel, H.W., Vagins, M.R., Ganezer, K.S., Hill, J.E., Keig, W.E., Jang, J.S., Kim, J.Y., Lim, I.T., Scholberg, K., Tanimoto, N., Walter, C.W., Wendell, R., Ellsworth, R.W., Tasaka, S., Guillian, E., Learned, J.G., Matsuno, S., Messier, M.D., Hayato, Y., Ichikawa, A.K., Ishida, T., Ishii, T., Iwashita, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nitta, K., Oyama, Y., Totsuka, Y., Suzuki, A.T., Hasegawa, M., Hiraide, K., Kato, I., Maesaka, H., Nakaya, T., Nishikawa, K., Sasaki, T., Sato, H., Yamamoto, S., Yokoyama, M., Haines, T.J., Dazeley, S., Hatakeyama, S., Svoboda, R., Sullivan, G.W., Turcan, D., Clough, A., Habig, A., Fukuda, Y., Sato, T., Itow, Y., Koike, T., Jung, C.K., Kato, T., Kobayashi, K., Malek, M., McGrew, C., Sarrat, A., Terri, R., Yanagisawa, C., Tamura, N., Sakuda, M., Sugihara, M., Kuno, Y., Yoshida, M., Kim, S.B., Yang, B.S., Yoo, J., Ishizuka, T., Okazawa, H., Choi, Y., Seo, H.K., Gando, Y., Hasegawa, T., Inoue, K., Nishijima, K., Ishino, H., Watanabe, Y., Koshiba, M., Kielczewska, D., Zalipska, J., Berns, H.G., Gran, R., Shiraishi, K.K., Stachyra, A., Washburn, K., Wilkes, R.J.

Astrophys.J. 652 198 - 205 2006年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1086/508016

arXiv

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Monolithic Pixel Detector in a 0.15 mu m SOI Technology 査読

Y. Arai, M. Hazumi, Y. Ikegami, T. Kohriki, O. Tajima, S. Terada, T. Tsuboyama, Y. Unno, H. Ushiroda, H. Ikeda, K. Hara, H. Ishino, T. Kawasaki, E. Martin, G. Varner, H. Tajima, M. Ohno, K. Fukuda, H. Komatsubara, J. Ida, H. Hayashi

2006 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOL 1-6 1440 - 1444 2006年

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記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）出版者・発行元：IEEE

We describe a new pixel detector development project using a 0.15 mu m fully-depleted CMOS SOI (Silicon-On-Insulator) technology. Additional processing steps for creating substrate implants and contacts to form sensor and electrode connections were developed for this SOI process. A diode Test Element Group and several test chips have been fabricated and evaluated. The pixel detectors are successfully operated and first images are taken and sensibility to beta-rays is confirmed. Back gate effects on the top circuits are observed and discussed.

Web of Science

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Solar neutrino measurements in Super-Kamiokande-I 査読

J. Hosaka, K. Ishihara, J. Kameda, Y. Koshio, A. Minamino, C. Mitsuda, M. Miura, S. Moriyama, M. Nakahata, T. Namba, Y. Obayashi, N. Sakurai, A. Sarrat, M. Shiozawa, Y. Suzuki, Y. Takeuchi, S. Yamada, I. Higuchi, M. Ishitsuka, T. Kajita, K. Kaneyuki, G. Mitsuka, S. Nakayama, H. Nishino, A. Okada, K. Okumura, C. Saji, Y. Takenaga, S. Clark, S. Desai, E. Kearns, S. Likhoded, J. L. Stone, L. R. Sulak, W. Wang, M. Goldhaber, D. Casper, J. P. Cravens, W. R. Kropp, D. W. Liu, S. Mine, M. B. Smy, H. W. Sobel, C. W. Sterner, M. R. Vagins, K. S. Ganezer, J. Hill, W. E. Keig, J. S. Jang, J. Y. Kim, I. T. Lim, K. Scholberg, C. W. Walter, R. W. Ellsworth, S. Tasaka, G. Guillian, A. Kibayashi, J. G. Learned, S. Matsuno, M. D. Messier, Y. Hayato, A. K. Ichikawa, T. Ishida, T. Ishii, T. Iwashita, T. Kobayashi, T. Nakadaira, K. Nakamura, K. Nitta, Y. Oyama, Y. Totsuka, A. T. Suzuki, M. Hasegawa, I. Kato, H. Maesaka, T. Nakaya, K. Nishikawa, T. Sasaki, H. Sato, S. Yamamoto, M. Yokoyama, T. J. Haines, S. Dazeley, B. K. Kim, K. B. Lee, S. Hatakeyama, R. Svoboda, E. Blaufuss, J. A. Goodman, G. W. Sullivan, D. Turcan, J. Cooley, A. Habig, Y. Fukuda, T. Sato, Y. Itow, C. K. Jung, T. Kato, K. Kobayashi, M. Malek, K. Martens, C. Mauger, C. McGrew, E. Sharkey, C. Yanagisawa, N. Tamura, M. Sakuda, Y. Kuno, M. Yoshida, S. B. Kim, J. Yoo, H. Okazawa, T. Ishizuka, Y. Choi, H. K. Seo, Y. Gando, T. Hasegawa, K. Inoue, J. Shirai, A. Suzuki, K. Nishijima, H. Ishino, Y. Watanabe, M. Koshiba, D. Kielczewska, J. Zalipska, H. G. Berns, R. Gran, K. K. Shiraishi, A. L. Stachyra, K. Washburnand, R. J. Wilkes

Physical Review D - Particles, Fields, Gravitation and Cosmology 73 ( 11 ) 2006年

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記述言語：英語掲載種別：研究論文（学術雑誌）

The details of Super-Kamiokande-I's solar neutrino analysis are given. Solar neutrino measurement in Super-Kamiokande is a high statistics collection of B8 solar neutrinos via neutrino-electron scattering. The analysis method and results of the 1496 day data sample are presented. The final oscillation results for the data are presented also. © 2006 The American Physical Society.

DOI： 10.1103/PhysRevD.73.112001

Scopus

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Solar neutrino measurements in super-Kamiokande-I 査読

Hosaka, J., Ishihara, K., Kameda, J., Koshio, Y., Minamino, A., Mitsuda, C., Miura, M., Moriyama, S., Nakahata, M., Namba, T., Obayashi, Y., Sakurai, N., Sarrat, A., Shiozawa, M., Suzuki, Y., Takeuchi, Y., Yamada, S., Higuchi, I., Ishitsuka, M., Kajita, T., Kaneyuki, K., Mitsuka, G., Nakayama, S., Nishino, H., Okada, A., Okumura, K., Saji, C., Takenaga, Y., Clark, S., Desai, S., Kearns, E., Likhoded, S., Stone, J.L., Sulak, L.R., Wang, W., Goldhaber, M., Casper, D., Cravens, J.P., Kropp, W.R., Liu, D.W., Mine, S., Smy, M.B., Sobel, H.W., Sterner, C.W., Vagins, M.R., Ganezer, K.S., Hill, J., Keig, W.E., Jang, J.S., Kim, J.Y., Lim, I.T., Scholberg, K., Walter, C.W., Ellsworth, R.W., Tasaka, S., Guillian, G., Kibayashi, A., Learned, J.G., Matsuno, S., Messier, M.D., Hayato, Y., Ichikawa, A.K., Ishida, T., Ishii, T., Iwashita, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nitta, K., Oyama, Y., Totsuka, Y., Suzuki, A.T., Hasegawa, M., Kato, I., Maesaka, H., Nakaya, T., Nishikawa, K., Sasaki, T., Sato, H., Yamamoto, S., Yokoyama, M., Haines, T.J., Dazeley, S., Kim, B.K, Lee, K.B, Hatakeyama, S., Svoboda, R., Blaufuss, E., Goodman, J.A., Sullivan, G.W., Turcan, D., Cooley, J., Habig, A., Fukuda, Y., Sato, T., Itow, Y., Jung, C.K., Kato, T., Kobayashi, K., Malek, M., Martens, K., Mauger, C., McGrew, C., Sharkey, E., Yanagisawa, C., Tamura, N., Sakuda, M., Kuno, Y., Yoshida, M., Kim, S.B., Yoo, J., Okazawa, H., Ishizuka, T., Choi, Y., Seo, H.K., Gando, Y., Hasegawa, T., Inoue, K., Shirai, J., Suzuki, A., Nishijima, K., Ishino, H., Watanabe, Y., Koshiba, M., Kielczewska, D., Zalipska, J., Berns, H.G., Gran, R., Shiraishi, K.K., Stachyra, A.L., Washburn, K., Wilkes, R.J.

Phys.Rev.D 73 ( 112001 ) 112001 - 112001 2006年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevD.73.112001

Web of Science

arXiv

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A Measurement of atmospheric neutrino flux consistent with tau neutrino appearance 査読

Abe, K., Hayato, Y., Iida, T., Ishihara, K., Kameda, J., Koshio, Y., Minamino, A., Mitsuda, C., Miura, M., Moriyama, S., Nakahata, M., Obayashi, Y., Ogawa, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takeuchi, Y., Ueshima, K., Higuchi, I., Ishihara, C., Ishitsuka, M., Kajita, T., Kaneyuki, K., Mitsuka, G., Nakayama, S., Nishino, H., Okumura, K., Saji, C., Takenaga, Y., Totsuka, Y., Clark, S., Desai, S., Dufour, F., Kearns, E., Likhoded, S., Litos, M., Raaf, J.L., Stone, J.L., Sulak, L.R., Wang, W., Goldhaber, M., Casper, D., Cravens, J.P., Kropp, W.R., Liu, D.W., Mine, S., Regis, C., Smy, M.B., Sobel, H.W., Vagins, M.R., Ganezer, K.S., Hill, J.E., Keig, W.E., Jang, J.S., Kim, J.Y., Lim, I.T., Scholberg, K., Tanimoto, N., Walter, C.W., Wendell, R., Ellsworth, R.W., Tasaka, S., Guillian, E., Learned, J.G., Matsuno, S., Messier, M.D., Ichikawa, A.K., Ishida, T., Ishii, T., Iwashita, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nitta, K., Oyama, Y., Suzuki, A.T., Hasegawa, M., Kato, I., Maesaka, H., Nakaya, T., Nishikawa, K., Sasaki, T., Sato, H., Yamamoto, S., Yokoyama, M., Haines, T.J., Dazeley, S., Hatakeyama, S., Svoboda, R., Sullivan, G.W., Habig, A., Gran, R., Fukuda, Y., Sato, T., Itow, Y., Koike, T., Jung, C.K., Kato, T., Kobayashi, K., Malek, M., McGrew, C., Sarrat, A., Terri, R., Yanagisawa, C., Tamura, N., Sakuda, M., Sugihara, M., Kuno, Y., Yoshida, M., Kim, S.B., Yoo, J., Ishizuka, T., Okazawa, H., Choi, Y., Seo, H.K., Gando, Y., Hasegawa, T., Inoue, K., Ishii, H., Nishijima, K., Ishino, H., Watanabe, Y., Koshiba, M., Kielczewska, D., Zalipska, J., Berns, H.G., Shiraishi, K.K., Washburn, K., Wilkes, R.J.

Phys.Rev.Lett. 97 ( 171801 ) 171801 - 171801 2006年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevLett.97.171801

Web of Science

arXiv

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Three flavor neutrino oscillation analysis of atmospheric neutrinos in Super-Kamiokande 査読

Hosaka, J., Ishihara, K., Kameda, J., Koshio, Y., Minamino, A., Mitsuda, C., Miura, M., Moriyama, S., Nakahata, M., Namba, T., Obayashi, Y., Shiozawa, M., Suzuki, Y., Takeda, A., Takeuchi, Y., Yamada, S., Higuchi, I., Ishitsuka, M., Kajita, T., Kaneyuki, K., Mitsuka, G., Nakayama, S., Nishino, H., Okada, A., Okumura, K., Saji, C., Takenaga, Y., Clark, S., Desai, S., Kearns, E., Likhoded, S., Stone, J.L., Sulak, L.R., Wang, W., Goldhaber, M., Casper, D., Cravens, J.P., Kropp, W.R., Liu, D.W., Mine, S., Regis, C., Smy, M.B., Sobel, H.W., Sterner, C.W., Vagins, M.R., Ganezer, K.S., Hill, J.E., Keig, W.E., Jang, J.S., Kim, J.Y., Lim, I.T., Scholberg, K., Walter, C.W., Ellsworth, R.W., Tasaka, S., Guillian, E., Kibayashi, A., Learned, J.G., Matsuno, S., Messier, M.D., Hayato, Y., Ichikawa, A.K., Ishida, T., Ishii, T., Iwashita, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nitta, K., Oyama, Y., Totsuka, Y., Suzuki, A.T., Hasegawa, M., Kato, I., Maesaka, H., Nakaya, T., Nishikawa, K., Sasaki, T., Sato, H., Yamamoto, S., Yokoyama, M., Haines, T.J., Dazeley, S., Hatakeyama, S., Svoboda, R., Blaufuss, E., Goodman, J.A., Sullivan, G.W., Turcan, D., Cooley, J., Habig, A., Fukuda, Y., Sato, T., Itow, Y., Jung, C.K., Kato, T., Kobayashi, K., Malek, M., Mauger, C., McGrew, C., Sarrat, A., Yanagisawa, C., Tamura, N., Sakuda, M., Kuno, Y., Yoshida, M., Kim, S.B., Yoo, J., Ishizuka, T., Okazawa, H., Choi, Y., Seo, H.K., Gando, Y., Hasegawa, T., Inoue, K., Shirai, J., Suzuki, A., Nishijima, K., Ishino, H., Watanabe, Y., Koshiba, M., Kielczewska, D., Zalipska, J., Berns, H.G., Gran, R., Shiraishi, K.K., Stachyra, A., Washburn, K., Wilkes, R.J.

Phys.Rev.D 74 ( 032002 ) 032002 - 032002 2006年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevD.74.032002

arXiv

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Measurement of Neutrino Oscillation by the K2K Experiment 査読

Ahn, M.H., Aliu, E., Andringa, S., Aoki, S., Aoyama, Y., Argyriades, J., Asakura, K., Ashie, R., Berghaus, F., Berns, H.G., Bhang, H., Blondel, A., Borghi, S., Bouchez, J., Boyd, S.C., Burguet-Castell, J., Casper, D., Catala, J., Cavata, C., Cervera, A., Chen, S.M., Cho, K.O., Choi, J.H., Dore, U., Echigo, S., Espinal, X., Fechner, M., Fernandez, E., Fujii, K., Fujii, Y., Fukuda, S., Fukuda, Y., Gomez-Cadenas, J., Gran, R., Hara, T., Hasegawa, M., Hasegawa, T., Hayashi, K., Hayato, Y., Helmer, R.L., Higuchi, I., Hill, J., Hiraide, K., Hirose, E., Hosaka, J., Ichikawa, A.K., Ieiri, M., Iinuma, M., Ikeda, A., Inagaki, T., Ishida, T., Ishihara, K., Ishii, H., Ishii, T., Ishino, H., Ishitsuka, M., Itow, Y., Iwashita, T., Jang, H.I., Jang, J.S., Jeon, E.J., Jeong, I.S., Joo, K.K., Jover, G., Jung, C.K., Kajita, T., Kameda, J., Kaneyuki, K., Kang, B.H., Kato, I., Kato, Y., Kearns, E., Kerr, D., Kim, C.O., Khabibullin, M., Khotjantsev, A., Kielczewska, D., Kim, B.J., Kim, H.I., Kim, J.H., Kim, J.Y., Kim, S.B., Kitamura, M., Kitching, P., Kobayashi, K., Kobayashi, T., Kohama, M., Konaka, A., Koshio, Y., Kropp, W., Kubota, J., Kudenko, Yu., Kume, G., Kuno, Y., Kurimoto, Y., Kutter, T., Learned, J., Likhoded, S., Lim, I.T., Lim, S.H., Loverre, P.F., Ludovici, L., Maesaka, H., Mallet, J., Mariani, C., Martens, K., Maruyama, T., Matsuno, S., Matveev, V., Mauger, C., McConnel Mahn, K.B., McGrew, C., Mikheyev, S., Minakawa, M., Minamino, A., Mine, S., Mineev, O., Mitsuda, C., Mitsuka, G., Miura, M., Moriguchi, Y., Morita, T., Moriyama, S., Nakadaira, T., Nakahata, M., Nakamura, K., Nakano, I., Nakata, F., Nakaya, T., Nakayama, S., Namba, T., Nambu, R., Nawang, S., Nishikawa, K., Nishino, H., Nishiyama, S., Nitta, K., Noda, S., Noumi, H., Nova, F., Novella, P., Obayashi, Y., Okada, A., Okumura, K., Okumura, M., Onchi, M., Ooyabu, T., Oser, S.M., Otaki, T., Oyama, Y., Pac, M.Y., Park, H., Pierre, F., Rodriguez, A., Saji, C., Sakai, A., Sakuda, M., Sakurai, N., Sanchez, F., Sarrat, A., Sasaki, T., Sato, H., Sato, K., Scholberg, K., Schroeter, R., Sekiguchi, M., Seo, E., Sharkey, E., Shima, A., Shiozawa, M., Shiraishi, K., Sitjes, G., Smy, M., So, H., Sobel, H., Sorel, M., Stone, J., Sulak, L., Suga, Y., Suzuki, A., Suzuki, Y., Suzuki, Y., Tada, M., Takahashi, T., Takasaki, M., Takatsuki, M., Takenaga, Y., Takenaka, K., Takeuchi, H., Takeuchi, Y., Taki, K., Takubo, Y., Tamura, N., Tanaka, H., Tanaka, K., Tanaka, M., Tanaka, Y., Tashiro, K., Terri, R., T'Jampens, S., Tornero-Lopez, A., Toshito, T., Totsuka, Y., Ueda, S., Vagins, M., Whitehead, L., Walter, C.W., Wang, W., Wilkes, R.J., Yamada, S., Yamada, Y., Yamamoto, S., Yamanoi, Y., Yanagisawa, C., Yershov, N., Yokoyama, H., Yokoyama, M., Yoo, J., Yoshida, M., Zalipska, J.

Phys.Rev.D 74 ( 072003 ) 072003 - 072003 2006年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevD.74.072003

arXiv

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Search for Diffuse Astrophysical Neutrino Flux Using Ultrahigh Energy Upward-Going Muons in Super-Kamiokande I 査読

Swanson, Molly E.C., Abe, K., Hosaka, J., Iida, T., Ishihara, K., Kameda, J., Koshio, Y., Minamino, A., Mitsuda, C., Miura, M., Moriyama, S., Nakahata, M., Obayashi, Y., Agawa, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takeuchi, Y., Ueshima, K., Higuchi, I., Ishitsuka, M., Ishitusuka, M., Kajita, T., Kaneyuki, K., Mitsuka, G., Nakayama, S., Nishino, H., Okada, A., Okumura, K., Saji, C., Takenaga, Y., Clark, S., Desai, S., Dufour, F., Kearns, E., Likhoded, S., Litos, M., Raaf, J.L., Stone, J.L., Sulak, L.R., Wang, W., Goldhaber, M., Casper, D., Cravens, J.P., Dunmore, J., Kropp, W.R., Liu, D.W., Mine, S., Regis, C., Smy, M.B., Sobel, H.W., Vagins, M.R., Ganezer, K.S., Hill, J.E., Keig, W.E., Jang, J.S., Kim, J.Y., Lim, I.T., Scholberg, K., Tanimoto, N., Walter, C.W., Wendell, R., Ellsworth, R.W., Tasaka, S., Guillian, E., Kibayashi, A., Learned, J.G., Matsuno, S., Messier, M.D., Hayato, Y., Ichikawa, A.K., Ishida, T., Ishii, T., Iwashita, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nitta, K., Oyama, Y., Totsuka, Y., Suzuki, A.T., Hasegawa, M., Hiraide, K., Kato, I., Maesaka, H., Nakaya, T., Nishikawa, K., Sasaki, T., Sato, H., Yamamoto, S., Yokoyama, M., Haines, T.J., Dazeley, S., Hatakeyama, S., Svoboda, R., Sullivan, G.W., Turcan, D., Cooley, J., McConnel Mahn, Kendall Brianna, Habig, A., Fukuda, Y., Sato, T., Itow, Y., Koike, T., Jung, C.K., Kato, T., Kobayashi, K., Malek, M., McGrew, C., Sarrat, A., Terri, R., Yanagisawa, C., Tamura, N., Sakuda, M., Sugihara, M., Kuno, Y., Yoshida, M., Kim, S.B., Yang, B.S., Yoo, J., Ishizuka, T., Okazawa, H., Choi, Y., Seo, H.K., Gando, Y., Hasegawa, T., Inoue, K., Ishi, H., Nishijima, K., Ishino, H., Watanabe, Y., Koshiba, M., Kielczewska, D., Zalipska, J., Berns, H.G., Gran, R., Shiraishi, K.K., Stachyra, A., Thrane, E., Washburn, K., Wilkes, R.J.

Astrophys.J. 652 206 - 215 2006年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1086/507983

arXiv

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Current status of solar neutrinos at super-kamiokande 査読

Cravens P, Hosaka J, Ishihara K, Kameda J, Koshio Y, Minamino A, Mitsuda G, Miura M, Moriyama S, Nakahata M, Namba T, Obayashi Y, Shiozawa M, Suzuki Y, Takeda A, Takeuchi Y, Yamada S, Higuchi I, Ishitsuka M, Kajita T, Kaneyuki K, Mitsuka G, Nakayama S, Nishino H, Okada A, Okumura K, Saji C, Takenaga Y, Clark S, Desai S, Kearns E, Likhoded S, Stone J.L, Sulak L.R, Wang W, Goldhaber M, Casper D, Cravens J.P, Kropp W.R, Liu D.W, Mine S, Regis C, Smy M.B, Sobel H.W, Sterner C.W, Vagins M.R, Ganezer K.S, Hill J.E, Keig W.E, Jang J.S, Kim J.Y, Lim I.T, Scholberg K, Walter C.W, Wendell R, Ellsworth R.W, Tasaka S, Guillian E, Kibayashi A, Learned J.G, Matsuno S, Messier M.D, Hayato Y, Ichikawa A.K, Ishida T, Ishii T, Iwashita T, Kobayasln T, Nakadaira T, Nakamura K, Nitta K, Oyama Y, Totsuka Y, Suzuki A.T, Hasegawa M, Kato I, Maesaka H, Nakaya T, Nishikawa K, Sasaki T, Sato H, Yamamoto S, Yokoyama M, Haines T.J, Dazeley S, Hatakeyama S, Svoboda R, Blaufuss E, Goodman J.A, Sullivan G.W, Turcan D, Cooley J, Habig A, Fukuda Y, Sato T, Itow Y, Jung C.K, Kato T, Kobayashi K, Malek M, Mauger C, McGrew C, Sarrat A, Yanagisawa C, Tamura N, Sakuda M, Kuno Y, Yoshida M, Kim S.B, Yoo J, Ishizuka T, Okazawa H, Choi Y, Seo H.K, Gando Y, Hasegawa T, Inoue K, Shirai J, Suzuki A, Nishijima K, Ishino H, Watanabe Y, Koshiba M, Kielezewska D, Zalipska J, Berns H.G, Gran R, Shiraishi K.K, Stachyra A, Washburn K, Wilkes R.J

Annual Meeting of the Division of Particles and Fields of the American Physical Society, DPF 2006, and the Annual Fall Meeting of the Japan Particle Physics Community 2006年

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掲載種別：研究論文（国際会議プロシーディングス）

Scopus

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その他リンク： http://orcid.org/0000-0003-2742-0251
Measurements of B decays to two kaons 査読

K Abe, Adachi, I, H Aihara, Y Asano, Aulchenko, V, T Aushev, AM Bakich, Balagura, V, S Banerjee, E Barberio, M Barbero, A Bay, Bedny, I, U Bitenc, Bizjak, I, S Blyth, A Bondar, A Bozek, M Bracko, J Brodzicka, TE Browder, P Chang, Y Chao, A Chen, KF Chen, WT Chen, BG Cheon, R Chistov, SK Choi, Y Choi, A Chuvikov, S Cole, J Dalseno, M Danilov, M Dash, LY Dong, J Dragic, A Drutskoy, S Eidelman, Y Enari, S Fratina, N Gabyshev, T Gershon, A Go, G Gokhroo, B Golob, A Gorisek, J Haba, T Hara, NC Hastings, K Hayasaka, H Hayashii, M Hazumi, L Hinz, T Hokuue, Y Hoshi, S Hou, WS Hou, YB Hsiung, T Iijima, K Ikado, A Imoto, A Ishikawa, H Ishino, R Itoh, M Iwasaki, Y Iwasaki, JH Kang, JS Kang, SU Kataoka, N Katayama, H Kawai, T Kawasaki, HR Khan, H Kichimi, JH Kim, SK Kim, SM Kim, K Kinoshita, S Korpar, P Krizan, P Krokovny, CC Kuo, A Kuzmin, YJ Kwon, SE Lee, T Lesiak, J Li, SW Lin, D Liventsev, G Majumder, F Mandl, T Matsumoto, A Matyja, W Mitaroff, H Miyake, H Miyata, Y Miyazaki, R Mizuk, D Mohapatra, GR Moloney, Y Nagasaka, E Nakano, M Nakao, Z Natkaniec, S Nishida, O Nitoh, S Noguchi, T Nozaki, S Ogawa, T Ohshima, T Okabe, S Okuno, SL Olsen, Y Onuki, W Ostrowicz, H Ozaki, P Pakhlov, H Palka, CW Park, N Parslow, LS Peak, R Pestotnik, LE Piilonen, M Rozanska, Y Sakai, N Sato, N Satoyama, K Sayeed, T Schietinger, O Schneider, AJ Schwartz, ME Sevior, H Shibuya, Sidorov, V, A Somov, N Soni, S Stanic, M Staric, K Sumisawa, T Sumiyoshi, S Suzuki, O Tajima, F Takasaki, K Tamai, N Tamura, M Tanaka, GN Taylor, Y Teramoto, XC Tian, K Trabelsi, T Tsuboyama, T Tsukamoto, S Uehara, T Uglov, Y Unno, S Uno, P Urquijo, Y Ushiroda, G Varner, CH Wang, MZ Wang, Y Watanabe, E Won, QL Xie, BD Yabsley, A Yamaguchi, Y Yamashita, M Yamauchi, J Ying, SL Zang, J Zhang, LM Zhang, ZP Zhang, Zhilich, V, D Zurcher

PHYSICAL REVIEW LETTERS 95 ( 23 ) 1 - 5 2005年12月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report measurements of B meson decays to two kaons using 253 fb(-1) of data collected with the Belle detector at the KEKB energy-asymmetric e(+)e(-) collider. We find evidence for signals in B+->(K) over bar K-0(+) and B-0-> K-0(K) over bar (0) with significances of 3.0 sigma and 3.5 sigma, respectively. (Charge-conjugate modes are included.) The corresponding branching fractions are measured to be B(B+->(K) over bar K-0(+))=(1.0 +/- 0.4 +/- 0.1)x10(-6) and B(B-0-> K-0(K) over bar (0))=(0.8 +/- 0.3 +/- 0.1)x10(-6). These decay modes are examples of hadronic b -> d transitions. No signal is observed in the decay B-0-> K+K-, and we set an upper limit of 3.7x10(-7) at 90% confidence level.

DOI： 10.1103/PhysRevLett.95.231802

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Improved measurement of the electroweak penguin process B -> X(s)l(+)l(-) 査読

M Iwasaki, K Itoh, H Aihara, K Abe, K Abe, Adachi, I, Y Asano, T Aushev, S Bahinipati, AM Bakich, S Banerjee, Bedny, I, U Bitenc, Bizjak, I, S Blyth, A Bondar, A Bozek, M Bracko, J Brodzicka, TE Browder, MC Chang, P Chang, Y Chao, A Chen, KF Chen, WT Chen, BG Cheon, R Chistov, SK Choi, Y Choi, A Chuvikov, J Dalseno, M Danilov, M Dash, A Drutskoy, S Eidelman, Y Enari, S Fratina, N Gabyshev, T Gershon, G Gokhroo, B Golob, A Gorisek, J Haba, T Hara, NC Hastings, K Hayasaka, H Hayashii, M Hazumi, T Hokuue, Y Hoshi, S Hou, WS Hou, YB Hsiung, T Iijima, A Imoto, K Inami, A Ishikawa, H Ishino, R Itoh, JH Kang, JS Kang, N Katayama, H Kawai, T Kawasaki, HR Khan, H Kichimi, HJ Kim, SK Kim, SM Kim, K Kinoshita, P Krizan, P Krokovny, R Kulasiri, S Kumar, CC Kuo, A Kuzmin, YJ Kwon, JS Lange, G Leder, SE Lee, T Lesiak, J Li, SW Lin, D Liventsev, J MacNaughton, G Majumder, F Mandl, T Matsumoto, A Matyja, Y Mikami, W Mitaroff, K Miyabayashi, H Miyake, H Miyata, R Mizuk, D Mohapatra, GR Moloney, T Nagamine, Y Nagasaka, Nakamura, I, E Nakano, M Nakao, H Nakazawa, Z Natkaniec, S Nishida, O Nitoh, S Ogawa, T Ohshima, T Okabe, S Okuno, SL Olsen, W Ostrowicz, H Ozaki, H Palka, CW Park, H Park, N Parslow, LS Peak, R Pestotnik, LE Piilonen, N Root, M Rozanska, H Sagawa, Y Sakai, N Sato, T Schietinger, O Schneider, P Schonmeier, J Schumann, C Schwanda, AJ Schwartz, ME Sevior, H Shibuya, B Shwartz, Sidorov, V, JB Singh, A Somov, N Soni, R Stamen, S Stanic, M Staric, K Sumisawa, T Sumiyoshi, S Suzuki, SY Suzuki, O Tajima, F Takasaki, K Tamai, N Tamura, M Tanaka, GN Taylor, Y Teramoto, XC Tian, T Tsukamoto, S Uehara, T Uglov, K Ueno, S Uno, P Urquijo, Y Ushiroda, G Varner, KE Varvell, S Villa, CC Wang, CH Wang, MZ Wang, Y Watanabe, QL Xie, BD Yabsley, A Yamaguchi, Y Yamashita, M Yamauchi, H Yang, J Ying, LM Zhang, ZP Zhang, Zhilich, V, D Zontar, D Zurcher

PHYSICAL REVIEW D 72 ( 9 ) 1 - 10 2005年11月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We present an improved measurement of the branching fraction for the electroweak penguin process B -> X-sl(l)+(-), where l is an electron or a muon and X-s is a hadronic system containing an s-quark. The measurement is based on a sample of 152x10(6) Upsilon(4S)-> B (B) over bar events collected with the Belle detector at the KEKB energy asymmetric e(+)e(-) collider. The X-s hadronic system is reconstructed from one K+/- or K-S(0) and up to four pions, where at most one pion can be neutral. Averaging over both lepton flavors, the inclusive branching fraction is measured to be B(B -> X-sl(l)+(-))=(4.11 +/- 0.83(stat)(-0.81)(+0.85)(syst))x10(-6) for M-l(l)+(-)> 0.2 GeV/c(2).

DOI： 10.1103/PhysRevD.72.092005

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The improved ladder production for the Belle silicon vertex detector (SVD2.1) 査読

T Ziegler, H Aihara, Y Asano, T Aso, A Bakich, M Barbero, T Browder, MC Chang, Y Chao, KF Chen, S Chidzik, A Chouvikov, J Dalseno, R Dowd, R Fernholz, S Fratina, M Friedl, H Fujii, Y Fujiyama, J Haba, K Hara, T Hara, B Harrop, T Haruyama, K Hayashi, M Hazumi, D Heffernan, T Higuchi, A Igarashi, Y Igarashi, H Ikeda, H Ishino, S Iwaida, T Kameshima, P Kapusta, K Kasami, T Kawasaki, A Kibayashi, S Koike, S Korpar, P Krizan, H Kurashiro, A Kusaka, T Lesiak, D Marlow, H Matsumoto, Y Mikami, H Miyake, GR Moloney, Z Natkaniec, S Nozaki, R Ohkubo, S Okuno, S Ono, Y Onuki, W Ostrowicz, H Ozaki, L Peak, M Pernicka, M Rosen, M Rozanska, N Sato, S Schmid, J Schumann, T Shibata, R Stamen, S Stanic, H Steininger, K Sumisawa, J Suzuki, H Tajima, O Tajima, K Takahashi, F Takasaki, N Tamura, M Tanaka, GN Taylor, K Trabelsi, T Tsuboyama, K Uchida, K Ueno, K Ueno, Y Ushiroda, S Vahsen, G Varner, K Varvell, YS Velikzhanin, CC Wang, MZ Wang, M Watanabe, Y Watanabe, H Yamamoto, Y Yamashita, M Yamauchi, R Yang, Y Yasu, D Zontar

IEEE TRANSACTIONS ON NUCLEAR SCIENCE 52 ( 5 ) 1907 - 1911 2005年10月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC

In autumn :2003, data taking with the new silicon vertex detector SVD2.0 in Belle started at the KEK-B energy-asymmetric e(+)e(-) collider in Tsukuba, Japan. The detector works as expected, however, it was decided to produce replacement ladders for the inner two layers of the vertex detector which are most exposed to the high radiation dose from the beam. The new ladders do not merely reproduce the existing design but include some significant improvements. The readout electronics is implemented on a hybrid board with a new heat transfer scheme in order to dissipate the heat produced in the front-end readout chip. The flex circuits that connect the double-sided silicon sensors (DSSDs) with the hybrid boards were redesigned using a 2-layer technique which improved the production quality and lowered their costs significantly. Production and testing will be finished in summer 2005 and will provide Belle with spare ladders as well as new expertise for possible future projects for example the high luminosity B-factory.

DOI： 10.1109/TNS.2005.856626

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Time-dependent C P violation effects in partially reconstructed B-0 -> D-*-/+pi(+/-) decays 査読

T Gershon, K Abe, K Abe, Adachi, I, H Aihara, Y Asano, T Aushev, S Bahinipati, AM Bakich, S Banerjee, A Bay, Bedny, I, U Bitenc, Bizjak, I, S Blyth, A Bondar, A Bozek, M Bracko, J Brodzicka, TE Browder, MC Chang, P Chang, Y Chao, A Chen, WT Chen, BG Cheon, SK Choi, Y Choi, A Chuvikov, S Cole, J Dalseno, M Danilov, M Dash, J Dragic, S Eidelman, S Fratina, N Gabyshev, A Garmash, G Gokhroo, B Golob, A Gorisek, J Haba, K Hara, NC Hastings, K Hayasaka, H Hayashii, M Hazumi, L Hinz, T Hokuue, Y Hoshi, S Hou, WS Hou, T Iijima, A Imoto, K Inami, A Ishikawa, H Ishino, R Itoh, M Iwasaki, Y Iwasaki, JH Kang, JS Kang, P Kapusta, N Katayama, H Kawai, T Kawasaki, N Kent, HR Khan, H Kichimi, HJ Kim, SM Kim, K Kinoshita, P Krokovny, S Kumar, CC Kuo, A Kuzmin, YJ Kwon, G Leder, T Lesiak, J Li, A Limosani, SW Lin, D Liventsev, J MacNaughton, G Majumder, F Mandl, D Marlow, T Matsumoto, Y Mikami, W Mitaroff, K Miyabayashi, H Miyake, H Miyata, D Mohapatra, GR Moloney, T Nagamine, E Nakano, M Nakao, H Nakazawa, S Nishida, O Nitoh, T Nozaki, S Ogawa, T Ohshima, T Okabe, S Okuno, SL Olsen, W Ostrowicz, P Pakhlov, H Palka, CW Park, N Parslow, LS Peak, R Pestotnik, LE Piilonen, A Poluektov, FJ Ronga, H Sagawa, Y Sakai, TR Sarangi, N Sato, T Schietinger, O Schneider, C Schwanda, AJ Schwartz, K Senyo, ME Sevior, T Shibata, H Shibuya, JB Singh, A Somov, R Stamen, S Stanic, M Staric, K Sumisawa, T Sumiyoshi, S Suzuki, O Tajima, F Takasaki, K Tamai, N Tamura, M Tanaka, Y Teramoto, XC Tian, K Trabelsi, T Tsuboyama, T Tsukamoto, S Uehara, T Uglov, S Uno, P Urquijo, Y Ushiroda, G Varner, KE Varvell, S Villa, CC Wang, CH Wang, M Watanabe, QL Xie, BD Yabley, A Yamaguchi, H Yamamoto, Y Yamashita, M Yamauchi, HY Yang, J Ying, J Zhang, LM Zhang, ZP Zhang, D Zontar

PHYSICS LETTERS B 624 ( 1-2 ) 11 - 21 2005年9月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

We report measurements of time-dependent decay rates for B-0-> D*(-/+)pi(+/-) decays and extraction of CP violation parameters related to phi(3). We use a partial reconstruction technique, whereby signal events are identified using information only from the primary pion and the charged pion from the decay of the D*(-/+). The analysis uses 140 fb(-1) of data accumulated at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We measure the CP violation parameters S+ = 0.035 +/- 0.041 (stat) +/- 0.018 (syst) and S- = 0.025 +/- 0.041 (stat) +/- 0.018 (syst). (c) 2005 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.physletb.2005.07.020

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Measurements of the branching fraction and polarization in B+->rho K-+(*0) decays 査読

J Zhang, K Abe, Adachi, I, H Aihara, K Arinstein, Y Asano, T Aushev, T Aziz, S Bahinipati, AM Bakich, E Barberio, U Bitenc, Bizjak, I, S Blyth, A Bondar, A Bozek, J Brodzicka, TE Browder, P Chang, A Chen, KF Chen, WT Chen, BG Cheon, R Chistov, SK Choi, Y Choi, YK Choi, A Chuvikov, S Cole, J Dalseno, M Danilov, M Dash, J Dragic, S Eidelman, F Fang, S Fratina, N Gabyshev, T Gershon, G Gokhroo, B Golob, A Gorisek, T Hara, M Hazumi, L Hinz, T Hokuue, Y Hoshi, S Hou, WS Hou, T Iijima, A Imoto, A Ishikawa, H Ishino, R Itoh, M Iwasaki, JH Kang, JS Kang, SU Kataoka, H Kawai, T Kawasaki, HR Khan, H Kichimi, HJ Kim, SK Kim, SM Kim, K Kinoshita, S Korpar, P Krokovny, CC Kuo, YJ Kwon, G Leder, T Lesiak, J Li, A Limosani, SW Lin, J MacNaughton, F Mandl, T Matsumoto, A Matyja, Y Mikami, W Mitaroff, K Miyabayashi, H Miyake, H Miyata, R Mizuk, GR Moloney, T Nagamine, Y Nagasaka, E Nakano, M Nakao, H Nakazawa, Z Natkaniec, S Nishida, O Nitoh, T Nozaki, S Ogawa, T Ohshima, T Okabe, S Okuno, SL Olsen, Y Onuki, W Ostrowicz, H Ozaki, CW Park, LS Peak, R Pestotnik, LE Piilonen, H Sagawa, Y Sakai, TR Sarangi, T Schietinger, O Schneider, AJ Schwartz, ME Sevior, H Shibuya, A Somov, R Stamen, S Stanic, M Staric, T Sumiyoshi, S Suzuki, O Tajima, F Takasaki, M Tanaka, Y Teramoto, XC Tian, T Tsuboyama, T Tsukamoto, S Uehara, T Uglov, K Ueno, S Uno, P Urquijo, G Varner, KE Varvell, S Villa, CC Wang, CH Wang, MZ Wang, Y Watanabe, QL Xie, BD Yabsley, A Yamaguchi, Y Yamashita, H Yang, J Ying, LM Zhang, ZP Zhang, D Zontar

PHYSICAL REVIEW LETTERS 95 ( 14 ) 1 - 5 2005年9月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We present the results of a study of the charmless vector-vector decay B+->rho K-+(*0), based on 253 fb(-1) of data collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We obtain the branching fraction B(B+->rho K-+(*0))=[8.9 +/- 1.7(stat)+/- 1.2(syst)]x10(-6). We also perform a helicity analysis of the rho and K-* vector mesons, and obtain the longitudinal polarization fraction f(L)(B+->rho K-+(*0))=0.43 +/- 0.11(stat)(-0.02)(+0.05)(syst).

DOI： 10.1103/PhysRevLett.95.141801

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Improved evidence for direct CP violation in B0 ->pi(+)pi(-) decays and model-independent constraints on phi(2) 査読

K Abe, Adachi, I, H Aihara, K Arinstein, Y Asano, T Aushev, AM Bakich, Y Ban, E Barberio, M Barbero, A Bay, U Bitenc, Bizjak, I, S Blyth, A Bondar, A Bozek, M Bracko, J Brodzicka, TE Browder, P Chang, Y Chao, A Chen, KF Chen, WT Chen, BG Cheon, R Chistov, SK Choi, Y Choi, YK Choi, A Chuvikov, S Cole, J Dalseno, M Dash, LY Dong, A Drutskoy, S Eidelman, Y Enari, F Fang, S Fratina, N Gabyshev, A Garmash, T Gershon, G Gokhroo, B Golob, A Gorisek, J Haba, K Hara, T Hara, NC Hastings, H Hayashii, M Hazumi, L Hinz, T Hokuue, Y Hoshi, S Hou, WS Hou, YB Hsiung, T Iijima, A Imoto, K Inami, A Ishikawa, H Ishino, R Itoh, M Iwasaki, Y Iwasaki, H Kakuno, JH Kang, JS Kang, P Kapusta, N Katayama, H Kawai, T Kawasaki, HR Khan, A Kibayashi, H Kichimi, SM Kim, K Kinoshita, S Korpar, P Krizan, P Krokovny, S Kumar, CC Kuo, A Kusaka, A Kuzmin, YJ Kwon, G Leder, SE Lee, T Lesiak, J Li, SW Lin, J MacNaughton, G Majumder, F Mandl, D Marlow, A Matyja, Y Mikami, W Mitaroff, K Miyabayashi, H Miyake, H Miyata, R Mizuk, D Mohapatra, A Murakami, T Nagamine, Y Nagasaka, Nakamura, I, E Nakano, M Nakao, H Nakazawa, Z Natkaniec, S Nishida, O Nitoh, S Noguchi, T Nozaki, S Ogawa, T Ohshima, T Okabe, S Okuno, SL Olsen, Y Onuki, W Ostrowicz, H Ozaki, P Pakhlov, H Palka, H Park, N Parslow, LS Peak, R Pestotnik, LE Piilonen, FJ Ronga, M Rozanska, H Sagawa, Y Sakai, N Sato, T Schietinger, O Schneider, P Schonmeier, J Schumann, AJ Schwartz, K Senyo, ME Sevior, H Shibuya, B Shwartz, Sidorov, V, JB Singh, A Somov, N Soni, R Stamen, S Stanic, M Staric, K Sumisawa, T Sumiyoshi, S Suzuki, SY Suzuki, O Tajima, F Takasaki, K Tamai, N Tamura, M Tanaka, Y Teramoto, XC Tian, K Trabelsi, T Tsuboyama, T Tsukamoto, S Uehara, T Uglov, K Ueno, Y Unno, S Uno, P Urquijo, Y Ushiroda, G Varner, KE Varvell, S Villa, CC Wang, CH Wang, MZ Wang, Y Watanabe, QL Xie, BD Yabsley, A Yamaguchi, Y Yamashita, M Yamauchi, HY Yang, J Zhang, LM Zhang, ZP Zhang, Zhilich, V, D Zontar, D Zurcher

PHYSICAL REVIEW LETTERS 95 ( 10 ) 1 - 6 2005年9月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We present a new measurement of the time-dependent CP-violating parameters in B-0 ->pi(+)pi(-) decays with 275x10(6) B (B) over bar pairs collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider operating at the Upsilon(4S) resonance. We find 666 +/- 43 B-0 ->pi(+)pi(-) events and measure the CP-violating parameters: S-pi pi=-0.67 +/- 0.16(stat)+/- 0.06(syst) and A(pi pi)=+0.56 +/- 0.12(stat)+/- 0.06(syst). We find evidence for large direct CP violation with a significance greater than 4 standard deviations for any S-pi pi value. Using isospin relations, we obtain 95.4% confidence intervals for the Cabibbo-Kobayashi-Maskawa quark-mixing matrix angle phi(2) of 0 degrees <phi(2)< 19 degrees and 71 degrees <phi(2)< 180 degrees.

DOI： 10.1103/PhysRevLett.95.101801

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The Belle Silicon Vertex Detector 査読

H Ishino

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 549 ( 1-3 ) 16 - 19 2005年9月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

The Belle Silicon Vertex Detector (SVD) was designed to measure B meson decay positions precisely for studies of time-dependent CP violation. Although the first version of SVD (SVD1) worked for 4years from 1999 with excellent performance, its insufficient radiation hardness drove us to build a second generation SVD (SVD2). The SVD2 was installed in Belle in the summer of 2003 and has been working well. The strip yield is estimated to be more than 95%. The signal-to-noise ratios are obtained to be 18-36, depending on detector ladders. The intrinsic spatial resolutions are obtained to be 12.0 +/- 0.4 and 22.3 +/- 0.8 mu m for phi- and z-sides, where z-side measures positions along the beam direction and 0 side is used for the azimuthal angle measurement. In this letter, an overview and performance results are provided for both generations of the Belle SVD. (c) 2005 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.nima.2005.04.018

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Measurement of time-dependent CP-Violating asymmetries in B-0 ->(KsKsKs0)-K-0-K-0 decay 査読

K Sumisawa, Y Ushiroda, M Hazumi, K Abe, K Abe, Adachi, I, H Aihara, Y Asano, Aulchenko, V, T Aushev, AM Bakich, U Bitenc, Bizjak, I, S Blyth, A Bondar, A Bozek, M Bracko, J Brodzicka, TE Browder, Y Chao, A Chen, KF Chen, WT Chen, BG Cheon, R Chistov, Y Choi, A Chuvikov, S Cole, J Dalseno, M Danilov, M Dash, A Drutskoy, S Eidelman, Y Enari, F Fang, S Fratina, N Gabyshev, A Garmash, T Gershon, G Gokhroo, B Golob, A Gorisek, J Haba, K Hara, T Hara, H Hayashii, T Higuchi, T Hokuue, Y Hoshi, S Hou, WS Hou, YB Hsiung, T Iijima, A Imoto, K Inami, A Ishikawa, H Ishino, R Itoh, M Iwasaki, Y Iwasaki, JH Kang, JS Kang, SU Kataoka, N Katayama, H Kawai, T Kawasaki, HR Khan, H Kichimi, HJ Kim, HO Kim, SK Kim, SM Kim, K Kinoshita, S Korpar, P Krizan, P Krokovny, R Kulasiri, S Kumar, CC Kuo, A Kusaka, A Kuzmin, YJ Kwon, JS Lange, G Leder, T Lesiak, SW Lin, F Mandl, D Marlow, T Matsumoto, A Matyja, W Mitaroff, K Miyabayashi, H Miyake, H Miyata, R Mizuk, T Nagamine, Y Nagasaka, E Nakano, M Nakao, Z Natkaniec, S Nishida, O Nitoh, T Nozaki, S Ogawa, T Ohshima, T Okabe, S Okuno, SL Olsen, Y Onuki, W Ostrowicz, H Ozaki, CW Park, H Park, N Parslow, LS Peak, R Pestotnik, LE Piilonen, M Rozanska, H Sagawa, Y Sakai, TR Sarangi, N Sato, T Schietinger, O Schneider, R Seuster, ME Sevior, H Shibuya, Sidorov, V, JB Singh, A Somov, R Stamen, S Stanic, M Staric, T Sumiyoshi, S Suzuki, O Tajima, F Takasaki, K Tamai, N Tamura, M Tanaka, Y Teramoto, XC Tian, K Trabelsi, T Tsuboyama, T Tsukamoto, S Uehara, T Uglov, K Ueno, S Uno, P Urquijo, G Varner, KE Varvell, S Villa, CC Wang, CH Wang, MZ Wang, QL Xie, BD Yabsley, A Yamaguchi, H Yamamoto, Y Yamashita, M Yamauchi, HY Yang, J Zhang, LM Zhang, ZP Zhang, Zhilich, V, D Zontar

PHYSICAL REVIEW LETTERS 95 ( 6 ) 1 - 6 2005年8月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We present a measurement of CP-violation parameters in the B-0 ->(KSKSKS0)-K-0-K-0 decay based on a sample of 275x10(6) B (b) over bar pairs collected at the Y(4S) resonance with the Belle detector at the KEKB energy-asymmetric e(+)e(-) collider. One neutral B meson is fully reconstructed in the decay B-0 ->(KSKSKS0)-K-0-K-0, and the flavor of the accompanying B meson is identified from its decay products. CP-violation parameters are obtained from the asymmetry in the distributions of the proper-time interval between the two B decays: S = +1.26 +/- 0.68(stat) +/- 0.20(syst) and lambda = +0.54 +/- 0.34(stat) +/- 0.09(syst).

DOI： 10.1103/PhysRevLett.95.061801

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Studies of CP violation in B -> J/psi Kappa(*) decays 査読

R Itoh, Y Onuki, K Abe, K Abe, Adachi, I, H Aihara, Y Asano, T Aushev, AM Bakich, Y Ban, E Barberio, A Bay, U Bitenc, Bizjak, I, S Blyth, A Bondar, A Bozek, M Bracko, J Brodzicka, TE Browder, Y Chao, A Chen, KF Chen, WT Chen, BG Cheon, R Chistov, SK Choi, Y Choi, YK Choi, A Chuvikov, S Cole, J Dalseno, M Dash, LY Dong, A Drutskoy, S Eidelman, Y Enari, F Fang, S Fratina, N Gabyshev, A Garmash, T Gershon, G Gokhroo, B Golob, A Gorisek, J Haba, K Hara, T Hara, H Hayashii, M Hazumi, T Higuchi, L Hinz, T Hokuue, Y Hoshi, S Hou, WS Hou, YB Hsiung, T Iijima, A Imoto, K Inami, A Ishikawa, H Ishino, M Iwasaki, Y Iwasaki, JH Kang, JS Kang, P Kapusta, SU Kataoka, N Katayama, H Kawai, T Kawasaki, HR Khan, H Kichimi, HJ Kim, SM Kim, K Kinoshita, S Korpar, P Krizan, P Krokovny, S Kumar, CC Kuo, A Kusaka, A Kuzmin, YJ Kwon, G Leder, SE Lee, T Lesiak, J Li, SW Lin, G Majumder, F Mandl, T Matsumoto, A Matyja, Y Mikami, W Mitaroff, K Miyabayashi, H Miyake, H Miyata, R Mizuk, D Mohapatra, T Nagamine, E Nakano, M Nakao, H Nakazawa, Z Natkaniec, S Nishida, O Nitoh, T Nozaki, S Ogawa, T Ohshima, T Okabe, S Okuno, SL Olsen, W Ostrowicz, H Ozaki, P Pakhlov, H Palka, H Park, N Parslow, LS Peak, R Pestotnik, LE Piilonen, A Poluektov, M Rozanska, H Sagawa, Y Sakai, N Sato, T Schietinger, O Schneider, P Schonmeier, J Schumann, AJ Schwartz, K Senyo, ME Sevior, H Shibuya, B Shwartz, Sidorov, V, JB Singh, A Somov, N Soni, R Stamen, S Stanic, M Staric, K Sumisawa, T Sumiyoshi, S Suzuki, SY Suzuki, O Tajima, F Takasaki, K Tamai, N Tamura, M Tanaka, Y Teramoto, XC Tian, K Trabelsi, T Tsuboyama, T Tsukamoto, S Uehara, T Uglov, K Ueno, Y Unno, S Uno, P Urquijo, Y Ushiroda, G Varner, KE Varvell, CC Wang, CH Wang, Y Watanabe, QL Xie, BD Yabsley, A Yamaguchi, Y Yamashita, M Yamauchi, H Yang, J Zhang, LM Zhang, ZP Zhang, Zhilich, V, D Zontar

PHYSICAL REVIEW LETTERS 95 ( 9 ) 1 - 6 2005年8月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

CP violation in B -> J/psi K-* decays is studied using an angular analysis in a data sample of 253 fb(-1) recorded with the Belle detector at the KEKB e(+)e(-) collider. The flavor separated measurements of the decay amplitudes indicate no evidence for direct CP violation. T-odd CP violation is studied using the asymmetries in triple product correlations, and the results are consistent with the standard model null predictions. The time-dependent angular analysis gives the following values of CP-violating parameters: sin2 phi(1)=0.24 +/- 0.31 +/- 0.05 and cos2 phi(1)=0.56 +/- 0.79 +/- 0.11.

DOI： 10.1103/PhysRevLett.95.091601

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Time-dependent CP-violating asymmetries in b -> s(q)over-barq transitions 査読

KF Chen, F Fang, A Garmash, K Hara, M Hazumi, T Higuchi, H Kakuno, A Kusaka, T Shibata, O Tajima, K Trabelsi, T Ziegler, K Abe, K Abe, H Aihara, Y Asano, T Aushev, S Bahinipati, AM Bakich, Y Ban, E Barberio, M Barbero, A Bay, Bedny, I, U Bitenc, Bizjak, I, S Blyth, A Bondar, A Bozek, M Bracko, J Brodzicka, TE Browder, P Chang, Y Chao, A Chen, WT Chen, BG Cheon, R Chistov, SK Choi, Y Choi, YK Choi, A Chuvikov, J Dalseno, M Danilov, M Dash, LY Dong, A Drutskoy, S Eidelman, Y Enari, S Fratina, N Gabyshev, T Gershon, G Gokhroo, B Golob, A Gorisek, J Haba, T Hara, H Hayashii, L Hinz, T Hokuue, Y Hoshi, S Hou, WS Hou, YB Hsiung, T Iijima, A Imoto, K Inami, A Ishikawa, H Ishino, R Itoh, M Iwasaki, Y Iwasaki, JH Kang, JS Kang, P Kapusta, SU Kataoka, N Katayama, H Kawai, T Kawasaki, HR Khan, H Kichimi, HJ Kim, SM Kim, K Kinoshita, S Korpar, P Krizan, P Krokovny, S Kumar, CC Kuo, A Kuzmin, YJ Kwon, G Leder, SE Lee, T Lesiak, J Li, SW Lin, D Liventsev, G Majumder, F Mandl, D Marlow, T Matsumoto, A Matyja, Y Mikami, W Mitaroff, K Miyabayashi, H Miyake, H Miyata, R Mizuk, T Nagamine, Y Nagasaka, Nakamura, I, E Nakano, M Nakao, Z Natkaniec, S Nishida, O Nitoh, S Noguchi, T Nozaki, S Ogawa, T Ohshima, T Okabe, S Okuno, SL Olsen, Y Onuki, W Ostrowicz, P Pakhlov, H Palka, CW Park, H Park, N Parslow, LS Peak, R Pestotnik, LE Piilonen, M Rozanska, H Sagawa, Y Sakai, TR Sarangi, N Sato, T Schietinger, O Schneider, P Schonmeier, J Schumann, C Schwanda, AJ Schwartz, K Senyo, ME Sevior, H Shibuya, B Shwartz, Sidorov, V, A Somov, N Soni, R Stamen, S Stanic, M Staric, K Sumisawa, T Sumiyoshi, S Suzuki, SY Suzuki, F Takasaki, N Tamura, M Tanaka, Y Teramoto, XC Tian, T Tsuboyama, T Tsukamoto, S Uehara, T Uglov, K Ueno, S Uno, P Urquijo, Y Ushiroda, G Varner, KE Varvell, S Villa, CC Wang, CH Wang, MZ Wang, Y Watanabe, QL Xie, BD Yabsley, A Yamaguchi, Y Yamashita, M Yamauchi, H Yang, J Zhang, LM Zhang, ZP Zhang, Zhilich, V, D Zontar

PHYSICAL REVIEW D 72 ( 1 ) 1 - 15 2005年7月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We present new measurements of CP-violation parameters in B-0 ->phi K-0, (K+K-KS0), f(0)(980)K-S(0), eta'K-S(0), omega K-S(0), and K-S(0)pi(0) decays based on a sample of 275 x 10(6) B (B) over bar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB energy-asymmetric e(+)e(-) collider. One neutral B meson is fully reconstructed in one of the specified decay channels, and the flavor of the accompanying B meson is identified from its decay products. CP-violation parameters for each of the decay modes are obtained from the asymmetries in the distributions of the proper-time intervals between the two B decays. The combined result for the B-0 ->phi K-0, (K+K-KS0), f(0)(980)K-S(0), eta'K-S(0), omega K-S(0), K-S(0)pi(0), and previously reported (KSKSKS0)-K-0-K-0 decays differs from the SM expectation by 2.4 standard deviations.

DOI： 10.1103/PhysRevD.72.012004

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Measurement of the time-dependent CP-violating asymmetry in B-0 -> K-S(0)pi(0)gamma decays 査読

Y Ushiroda, K Sumisawa, M Hazumi, K Abe, K Abe, Adachi, I, H Aihara, Y Asano, Aulchenko, V, T Aushev, AM Bakich, A Bay, Bedny, I, U Bitenc, Bizjak, I, S Blyth, A Bondar, A Bozek, M Bracko, J Brodzicka, TE Browder, MC Chang, P Chang, Y Chao, A Chen, KF Chen, WT Chen, BG Cheon, SK Choi, Y Choi, A Chuvikov, S Cole, J Dalseno, M Danilov, M Dash, J Dragic, S Eidelman, F Fang, S Fratina, N Gabyshev, T Gershon, G Gokhroo, A Gorisek, J Haba, K Hara, NC Hastings, K Hayasaka, H Hayashii, T Higuchi, L Hinz, T Hokuue, Y Hoshi, S Hou, WS Hou, YB Hsiung, T Iijima, A Imoto, K Inami, A Ishikawa, H Ishino, R Itoh, M Iwasaki, Y Iwasaki, JH Kang, JS Kang, P Kapusta, N Katayama, H Kawai, T Kawasaki, HR Khan, H Kichimi, HJ Kim, SM Kim, K Kinoshita, P Krizan, P Krokovny, S Kumar, CC Kuo, A Kusaka, A Kuzmin, YJ Kwon, G Leder, T Lesiak, J Li, A Limosani, SW Lin, D Liventsev, F Mandl, T Matsumoto, Y Mikami, W Mitaroff, K Miyabayashi, H Miyake, H Miyata, D Mohapatra, GR Moloney, T Nagamine, E Nakano, M Nakao, S Nishida, O Nitoh, T Nozaki, S Ogawa, T Ohshima, T Okabe, S Okuno, SL Olsen, W Ostrowicz, H Ozaki, P Pakhlov, H Palka, CW Park, N Parslow, LS Peak, R Pestotnik, LE Piilonen, H Sagawa, Y Sakai, N Sato, T Schietinger, O Schneider, AJ Schwartz, K Senyo, ME Sevior, T Shibata, H Shibuya, JB Singh, A Somov, N Soni, R Stamen, S Stanic, M Staric, T Sumiyoshi, S Suzuki, O Tajima, F Takasaki, K Tamai, N Tamura, M Tanaka, Y Teramoto, XC Tian, K Trabelsi, T Tsuboyama, T Tsukamoto, S Uehara, T Uglov, S Uno, P Urquijo, G Varner, KE Varvell, S Villa, CC Wang, CH Wang, M Watanabe, Y Watanabe, QL Xie, A Yamaguchi, Y Yamashita, M Yamauchi, HY Yang, J Ying, J Zhang, LM Zhang, ZP Zhang, D Zontar

PHYSICAL REVIEW LETTERS 94 ( 23 ) 1 - 5 2005年6月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We present a new measurement of CP-violation parameters in B-0-> K(S)(0)pi(0)gamma decay based on a sample of 275x10(6) B (B) over bar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB energy-asymmetric e(+)e(-) collider. One of the B mesons is fully reconstructed in the B-0-> K(S)(0)pi(0)gamma decay. The flavor of the accompanying B meson is identified from its decay products. CP-violation parameters are obtained from the asymmetry in the distribution of the proper time intervals between the two B decays. We obtain S(KS)(0)pi(0)gamma=-0.58(-0.38)(+0.46)(stat)+/- 0.11(syst) and A(KS)(0)pi(0)gamma=+0.03 +/- 0.34(stat)+/- 0.11(syst), for the K(S)(0)pi(0) invariant mass covering the full range up to 1.8 GeV/c(2). We also measure the CP-violation parameters for the case B-0-> K-*0(-> K(S)(0)pi(0))gamma and obtain S(K)(*0)gamma=-0.79(-0.50)(+0.63)(stat)+/- 0.10(syst) for A(K)(*0)gamma fixed at 0.

DOI： 10.1103/PhysRevLett.94.231601

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Measurement of polarization and triple-product correlations in B -> phi K-* decays 査読

KF Chen, K Abe, K Abe, H Aihara, Y Asano, Aulchenko, V, T Aushev, S Bahinipati, AM Bakich, Bedny, I, U Bitenc, Bizjak, I, S Blyth, A Bondar, A Bozek, M Bracko, J Brodzicka, TE Browder, MC Chang, P Chang, Y Chao, A Chen, WT Chen, BG Cheon, R Chistov, SK Choi, Y Choi, A Chuvikov, J Dalseno, M Danilov, M Dash, A Drutskoy, S Eidelman, Y Enari, F Fang, S Fratina, N Gabyshev, A Garmash, T Gershon, G Gokhroo, B Golob, A Gorisek, J Haba, NC Hastings, K Hayasaka, H Hayashii, M Hazumi, L Hinz, T Hokuue, Y Hoshi, S Hou, WS Hou, YB Hsiung, T Iijima, A Imoto, K Inami, A Ishikawa, H Ishino, R Itoh, M Iwasaki, Y Iwasaki, JH Kang, JS Kang, P Kapusta, N Katayama, H Kawai, T Kawasaki, HR Khan, H Kichimi, HJ Kim, SK Kim, SM Kim, K Kinoshita, S Korpar, P Krizan, P Krokovny, S Kumar, CC Kuo, A Kuzmin, YJ Kwon, JS Lange, G Leder, SE Lee, YJ Lee, T Lesiak, J Li, SW Lin, D Liventsev, J MacNaughton, F Mandl, T Matsumoto, A Matyja, Y Mikami, W Mitaroff, K Miyabayashi, H Miyake, H Miyata, R Mizuk, D Mohapatra, GR Moloney, T Nagamine, Y Nagasaka, E Nakano, M Nakao, H Nakazawa, Z Natkaniec, S Nishida, O Nitoh, T Nozaki, S Ogawa, T Ohshima, T Okabe, S Okuno, SL Olsen, W Ostrowicz, H Ozaki, P Pakhlov, H Palka, CW Park, N Parslow, LS Peak, R Pestotnik, LE Piilonen, N Root, M Rozanska, H Sagawa, Y Sakai, TR Sarangi, N Sato, T Schietinger, O Schneider, J Schumann, C Schwanda, AJ Schwartz, K Senyo, ME Sevior, T Shibata, H Shibuya, B Shwartz, Sidorov, V, JB Singh, A Somov, N Soni, R Stamen, S Stanic, M Staric, K Sumisawa, T Sumiyoshi, O Tajima, F Takasaki, K Tamai, N Tamura, M Tanaka, Y Teramoto, XC Tian, K Trabelsi, T Tsukamoto, S Uehara, T Uglov, K Ueno, S Uno, P Urquijo, Y Ushiroda, G Varner, KE Varvell, S Villa, CC Wang, CH Wang, MZ Wang, M Watanabe, Y Watanabe, QL Xie, BD Yabsley, A Yamaguchi, Y Yamashita, M Yamauchi, HY Yang, J Ying, J Zhang, LM Zhang, ZP Zhang, Zhilich, V, D Zontar, D Zurcher

PHYSICAL REVIEW LETTERS 94 ( 22 ) 2005年6月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We present measurements of decay amplitudes and triple-product correlations in B ->phi K-* decays based on 253 fb(-1) of data recorded at the Upsilon(4S) resonance with the Belle detector at the KEKB e(+)e(-) storage ring. The decay amplitudes for the three different helicity states are determined from the angular distributions of final-state particles. The longitudinal polarization amplitudes are found to be 0.45 +/- 0.05 +/- 0.02 for B-0->phi K-*0 and 0.52 +/- 0.08 +/- 0.03 for B+->phi K*+ decays. CP- and T-odd CP-violating triple-product asymmetries are measured to be consistent with zero.

DOI： 10.1103/PhysRevLett.94.221804

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Radiation monitoring in Mrad range using radiation-sensing field-effect transistors 査読

S Stanic, Y Asano, H Ishino, A Igarashi, S Iwaida, Y Nakano, H Terazaki, T Tsuboyama, Yoda, I, D Zontar

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 545 ( 1-2 ) 252 - 260 2005年6月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

In many of the recent e(+)e(-) particle physics experiment, monitoring of the accumulated dose in silicon is essential to maximize the lifetime of silicon vertex detectors operating in severe radiation environments Using radiation-sensing field-effect transistors (RadFET) as radiation monitoring devices. We Studied their responses during irradiation and during subsequent annealing. The relation between the RadFET response and the dose was determined by irradiations with a Co-60 source with known activity. The study of annealing at three different temperatures showed that RadFETS gradually anneal for up to 40%. Annealing can be fitted h a sum of two exponential functions with time constants of 3 and 85 days. (c) 2005 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.nima.2005.01.347

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Improved measurement of CP-violation parameters sin2 phi(1) and vertical bar lambda vertical bar, B meson lifetimes, and B(0)-(B)over-bar(0) mixing parameter Delta m(d) (vol D 71, art no 072003, 2005) 査読

K Abe, K Abe, Adachi, I, H Aihara, M Akatsu, Y Asano, T Aushev, T Aziz, S Bahinipati, AM Bakich, Y Ban, S Banerjee, A Bay, Bedny, I, U Bitenc, Bizjak, I, S Blyth, A Bondar, A Bozek, M Bracko, J Brodzicka, TE Browder, P Chang, Y Chao, A Chen, KF Chen, WT Chen, BG Cheon, R Chistov, SK Choi, Y Choi, A Chuvikov, S Cole, J Dalseno, M Danilov, M Dash, A Drutskoy, S Eidelman, Eiges, V, F Fang, S Fratina, N Gabyshev, A Garmash, T Gershon, A Go, G Gokhroo, B Golob, J Haba, K Hara, NC Hastings, K Hayasaka, H Hayashii, M Hazumi, Higuchi, I, T Higuchi, L Hinz, T Hokuue, Y Hoshi, S Hou, WS Hou, T Iijima, A Imoto, K Inami, A Ishikawa, H Ishino, R Itoh, Y Iwasaki, H Kakuno, JH Kang, JS Kang, P Kapusta, SU Kataoka, N Katayama, H Kawai, T Kawasaki, H Kichimi, HJ Kim, JH Kim, SK Kim, SM Kim, K Kinoshita, P Koppenburg, S Korpar, P Krizan, P Krokovny, CC Kuo, YJ Kwon, JS Lange, G Leder, SH Lee, T Lesiak, J Li, SW Lin, D Liventsev, J MacNaughton, G Majumder, F Mandl, D Marlow, T Matsumoto, A Matyja, W Mitaroff, K Miyabayashi, H Miyake, H Miyata, R Mizuk, T Nagamine, Y Nagasaka, Nakamura, I, E Nakano, M Nakao, S Nishida, O Nitoh, S Noguchi, T Nozaki, S Ogawa, T Ohshima, T Okabe, S Okuno, SL Olsen, Y Onuki, W Ostrowicz, H Ozaki, P Pakhlov, H Palka, CW Park, N Parslow, R Pestotnik, LE Piilonen, M Rozanska, H Sagawa, Y Sakai, N Sato, T Schietinger, O Schneider, J Schumann, C Schwanda, AJ Schwartz, S Semenov, K Senyo, ME Sevior, T Shibata, H Shibuya, B Shwartz, Sidorov, V, JB Singh, A Somov, N Soni, R Stamen, S Stanic, M Staric, K Sumisawa, T Sumiyoshi, S Suzuki, SY Suzuki, O Tajima, F Takasaki, K Tamai, N Tamura, M Tanaka, Y Teramoto, XC Tian, K Trabelsi, T Tsuboyama, T Tsukamoto, S Uehara, T Uglov, K Ueno, S Uno, Y Ushiroda, KE Varvell, S Villa, CC Wang, CH Wang, M Watanabe, Y Watanabe, BD Yabsley, A Yamaguchi, H Yamamoto, Y Yamashita, M Yamauchi, J Ying, Y Yusa, CC Zhang, J Zhang, LM Zhang, ZP Zhang, Zhilich, V, D Zontar

PHYSICAL REVIEW D 71 ( 7 ) 1 - 12 2005年4月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

DOI： 10.1103/PhysRevD.71.079903

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Study of B-0 -> rho(+/-)pi(-/+) time-dependent CP violation at Belle 査読

CC Wang, K Abe, K Abe, T Abe, Adachi, I, H Aihara, Y Asano, T Aushev, AM Bakich, Y Ban, A Bay, Bedny, I, U Bitenc, Bizjak, I, S Blyth, A Bondar, A Bozek, M Bracko, TE Browder, P Chang, Y Chao, KF Chen, WT Chen, BG Cheon, SK Choi, Y Choi, A Chuvikov, S Cole, M Dash, LY Dong, J Dragic, A Drutskoy, S Eidelman, Eiges, V, T Gershon, G Gokhroo, R Guo, J Haba, NC Hastings, K Hayasaka, H Hayashii, M Hazumi, T Hokuue, Y Hoshi, S Hou, WS Hou, YB Hsiung, T Iijima, A Imoto, K Inami, A Ishikawa, H Ishino, K Itoh, R Itoh, H Iwasaki, Y Iwasaki, H Kakuno, JH Kang, JS Kang, P Kapusta, N Katayama, T Kawasaki, HR Khan, H Kichimi, HJ Kim, K Kinoshita, P Krizan, P Krokovny, S Kumar, YJ Kwon, JS Lange, SE Lee, YJ Lee, T Lesiak, J Li, A Limosani, SW Lin, J MacNaughton, T Matsumoto, A Matyja, Y Mikami, W Mitaroff, H Miyata, R Mizuk, D Mohapatra, T Mori, Y Nagasaka, T Nakadaira, E Nakano, M Nakao, Z Natkaniec, S Nishida, O Nitoh, T Nozaki, S Ogawa, T Ohshima, T Okabe, S Okuno, SL Olsen, W Ostrowicz, H Ozaki, P Pakhlov, CW Park, N Parslow, LS Peak, LE Piilonen, FJ Ronga, M Rozanska, H Sagawa, S Saitoh, Y Sakai, N Sato, T Schietinger, O Schneider, J Schumann, AJ Schwartz, S Semenov, K Senyo, ME Sevior, H Shibuya, JB Singh, A Somov, R Stamen, S Stanic, M Staric, K Sumisawa, T Sumiyoshi, SY Suzuki, O Tajima, F Takasaki, K Tamai, M Tanaka, GN Taylor, Y Teramoto, XC Tian, K Trabelsi, T Tsukamoto, S Uehara, T Uglov, K Ueno, S Uno, G Varner, KE Varvell, S Villa, CH Wang, MZ Wang, M Watanabe, BD Yabsley, Y Yamada, A Yamaguchi, Y Yamashita, M Yamauchi, J Ying, Y Yusa, J Zhang, LM Zhang, ZP Zhang, Zhilich, V, T Ziegler, D Zontar

PHYSICAL REVIEW LETTERS 94 ( 12 ) 1 - 6 2005年4月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We present a time-dependent analysis of CP violation in B-0->rho(+/-)pi(-/+) decays based on a 140 fb(-1) data sample collected at the Upsilon(4S) resonance with the Belle detector at KEKB. We obtain the charge asymmetry A(CP)(rho pi) = -0.16 +/- 0.10(stat)+/- 0.02(syst). An unbinned maximum-likelihood fit to the Delta t distributions yields C-rho pi = 0.25 +/- 0.17(stat)(-0.06)(+0.02)(syst), Delta C-rho pi = 0.38 +/- 0.18(stat)(-0.04)(+0.02)(syst), S-rho pi = -0.28 +/- 0.23(stat)(-0.08)(+0.10)(syst), and Delta S-rho pi = -0.30 +/- 0.24(stat)+/- 0.09(syst). The direct CP violation parameters for B ->rho(+)pi(-) and B ->rho(-)pi(+) decays are A(rho pi)(+) = -0.02 +/- 0.16(stat)(-0.02)(+0.05)(syst) and A(rho pi)(-+)= -0.53 +/- 0.29(stat)(-0.04)(+0.09)(syst).

DOI： 10.1103/PhysRevLett.94.121801

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The silicon vertex detector for the super B factory 査読

T Tsuboyama, R Abe, T Abe, H Aihara, Y Asano, T Aso, A Bakich, T Browder, MC Chang, Y Chao, KF Chen, S Chidzik, J Dalseno, R Dowd, J Dragic, CW Everton, R Fernholzq, M Friedl, H Fujii, ZW Gao, A Gordon, YN Guo, J Haba, K Hara, T Hara, Y Harada, T Haruyama, K Hasuko, K Hayashi, M Hazumi, EM Heenan, T Higuchi, H Hirai, N Hitomi, A Igarashi, Y Igarashi, H Ikeda, H Ishino, K Itoh, S Iwaida, J Kaneko, P Kapusta, R Karawatzki, K Kasami, H Kawai, T Kawasaki, A Kibayashi, S Koike, S Korpar, P Krizan, H Kurashiro, A Kusaka, T Lesiak, A Limosani, WC Lin, D Marlow, H Matsumoto, Y Mikami, H Miyake, GR Moloney, T Mori, T Nakadaira, Y Nakano, Z Natkaniec, S Nozaki, R Ohkubo, F Ohno, S Okuno, Y Onuki, W Ostrowicz, H Ozaki, L Peak, M Pernicka, M Rosen, M Rozanska, N Sato, S Schmid, T Shibata, R Stamen, S Stanic, H Steininger, K Sumisawa, J Suzuki, H Tajima, O Tajima, K Takahashi, F Takasaki, N Tamura, M Tanaka, GN Taylor, H Terazaki, T Tomura, K Trabelsi, W Trischuk, K Uchida, K Ueno, K Ueno, N Uozaki, Y Ushiroda, S Vahsen, G Varner, K Varvell, YS Velikzhanin, CC Wang, MZ Wang, M Watanabe, Y Watanabe, Y Yamada, H Yamamoto, Y Yamashita, D Yamashita, M Yamauchi, H Yanai, R Yang, Y Yasu, D Yokoyama, T Ziegler, D Zontar

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 541 ( 1-2 ) 421 - 426 2005年4月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

The present B factories, running at the luminosity of similar to 1 x 10(34) cm(-2) s(-1), have established a large time-dependent CP asymmetry in B decays. Upgrade of the KEKB accelerator to a luminosity of 5 x 10(35) cm(-2) s(-1), designated Super KEKB, has been proposed to extend physics reach beyond the standard model. Since measurement of time evolution of B mesons is essential, the silicon vertex detector, SVD, should be redesigned to meet the data rates and radiation backgrounds expected in this Super KEKB environment. The detector configuration, sensor options and read out electronics are discussed. (c) 2005 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.nima.2005.01.084

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Status of the Belle Silicon Vertex Detector 査読

R Stamen, R Abe, T Abe, H Aihara, Y Asano, T Aso, A Bakich, T Browder, MC Chang, Y Chao, KF Chen, S Chidzik, J Dalseno, R Dowd, J Dragic, CW Everton, R Fernholz, M Friedl, H Fujii, ZW Gao, A Gordon, YN Guo, J Haba, K Hara, T Hara, Y Harada, T Haruyama, K Hasuko, K Hayashi, M Hazumi, EM Heenan, T Higuchi, H Hirai, N Hitomi, A Igarashi, Y Igarashi, H Ikeda, H Ishino, K Itoh, S Iwaida, J Kaneko, P Kapusta, R Karawatzki, K Kasami, H Kawai, T Kawasaki, A Kibayashi, S Koike, S Korpar, P Krizan, H Kurashiro, A Kusaka, T Lesiak, A Limosani, WC Lin, D Marlow, H Matsumoto, Y Mikami, H Miyake, GR Moloney, T Mori, T Nakadaira, Y Nakano, Z Natkaniec, S Nozaki, R Ohkubo, F Ohno, S Okuno, Y Onuki, W Ostrowicz, H Ozaki, L Peak, M Pernicka, M Rosen, M Rozanska, N Sato, S Schmid, T Shibata, S Stanic, H Steininger, K Sumisawa, J Suzuki, H Tajima, O Tajima, K Takahashi, F Takasaki, N Tamura, M Tanaka, GN Taylor, H Terazaki, T Tomura, K Trabelsi, W Trischuk, T Tsuboyama, K Uchida, K Ueno, K Ueno, N Uozaki, Y Ushiroda, S Vahsen, G Varner, K Varvell, YS Velikzhanin, CC Wang, MZ Wang, M Watanabe, Y Watanabe, Y Yamada, H Yamamoto, Y Yamashita, Y Yamashita, M Yamauchi, H Yanai, R Yang, Y Yasu, M Yokoyama, T Ziegler, D Zontar

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 541 ( 1-2 ) 61 - 66 2005年4月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

The Silicon Vertex Detector (SVD) of the Belle experiment is one of the main components for the investigation of time-dependent CP-asymmetries at the B-factory at KEK. The first version of this device (SVD1) was operated for 4 years starting in 1999 with excellent performance. However, its major limitations necessitated the design of a new detector (SVD2) which was installed in the summer shutdown of 2003. The improvements of the hardware and first results on the performance under real beam conditions are presented. (c) 2005 Published by Elsevier B.V.

DOI： 10.1016/j.nima.2005.01.038

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Belle results on time dependent CP violation in B decays

H Ishino

INTERNATIONAL JOURNAL OF MODERN PHYSICS A 20 ( 2-3 ) 365 - 374 2005年1月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：WORLD SCIENTIFIC PUBL CO PTE LTD

We report on measurements of time-dependent, CP-violation parameters in neutral B meson systems based on a 140 fb(-1) data sample collected at the Y(4S) resonance with the Belle detector at the KEKB energy-asymmetric e(+)e(-) collider. One B meson is fully reconstructed in one of the CP eigenstate decay channels, and its flavor is identified from the decay products of the accompanying B meson. The CP-violation parameters are extracted from the asymmetries in the distributions of the proper-time intervals between the two B decays. The parameter sin 2 phi(1) is measured with the decay modes including the b -> c tree and b -> s penguin transitions, and sin 202 is obtained from the decay mode B -> pi(+)pi(-). A brief discussion of the phi(3) measurements with B -> D(*) (-/+)pi(+/-) decays is also given.

DOI： 10.1142/S0217751X05021531

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Measurement of the branching fraction and CP asymmetry in B+->rho(+)pi(0) 査読

J Zhang, K Abe, K Abe, T Abe, H Aihara, Y Asano, Aulchenko, V, T Aushev, T Aziz, S Bahinipati, AM Bakich, A Bay, Bedny, I, U Bitenc, Bizjak, I, S Blyth, A Bondar, A Bozek, M Bracko, TE Browder, P Chang, Y Chao, KF Chen, BG Cheon, R Chistov, SK Choi, Y Choi, A Chuvikov, M Danilov, M Dash, LY Dong, J Dragic, A Drutskoy, S Eidelman, Eiges, V, Y Enari, S Fratina, N Gabyshev, A Garmash, T Gershon, G Gokhroo, B Golob, H Hayashii, M Hazumi, T Higuchi, L Hinz, T Hokuue, Y Hoshi, WS Hou, YB Hsiung, T Iijima, A Imoto, K Inami, A Ishikawa, H Ishino, R Itoh, H Iwasaki, M Iwasaki, Y Iwasaki, JH Kang, JS Kang, N Katayama, H Kawai, T Kawasaki, HR Khan, H Kichimi, HJ Kim, JH Kim, TH Kim, K Kinoshita, P Koppenburg, S Korpar, P Krizan, P Krokovny, S Kumar, A Kuzmin, YJ Kwon, G Leder, SE Lee, SH Lee, T Lesiak, J Li, A Limosani, SW Lin, J MacNaughton, G Majumder, F Mandl, T Matsumoto, W Mitaroff, K Miyabayashi, H Miyake, H Miyata, R Mizuk, D Mohapatra, GR Moloney, T Mori, T Nagamine, Y Nagasaka, M Nakao, S Nishida, O Nitoh, T Nozaki, T Okabe, S Okuno, SL Olsen, W Ostrowicz, H Ozaki, P Pakhlov, CW Park, H Park, N Parslow, LE Piilonen, FJ Ronga, M Rozanska, H Sagawa, Y Sakai, TR Sarangi, O Schneider, J Schumann, AJ Schwartz, S Semenov, K Senyo, ME Sevior, H Shibuya, B Shwartz, A Somov, N Soni, R Stamen, S Stanic, M Staric, K Sumisawa, T Sumiyoshi, S Suzuki, O Tajima, F Takasaki, K Tamai, M Tanaka, GN Taylor, Y Teramoto, T Tomura, T Tsuboyama, T Tsukamoto, S Uehara, T Uglov, K Ueno, Y Unno, S Uno, G Varner, KE Varvell, S Villa, CC Wang, CH Wang, MZ Wang, M Watanabe, Y Watanabe, BD Yabsley, Y Yamada, A Yamaguchi, Y Yamashita, M Yamauchi, HY Yang, J Ying, Y Yusa, SL Zang, CC Zhang, ZP Zhang, Zhilich, V, T Ziegler, D Zontar

PHYSICAL REVIEW LETTERS 94 ( 3 ) 1 - 5 2005年1月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report a measurement of the branching fraction for the decay B+-->rho(+)pi(0) based on a 140 fb(-1) data sample collected with the Belle detector at the KEKB asymmetric e(+)e(-) collider. We measure the branching fraction B(B+-->rho(+)pi(0))=(13.2+/-2.3(stat)(-1.9)(+1.4)(syst))x10(-6), and the CP-violating asymmetry A(CP)(B-/+-->rho(-/+)pi(0))=0.06+/-0.17(stat)(-0.05)(+0.04)(syst).

DOI： 10.1103/PhysRevLett.94.031801

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A Measurement of atmospheric neutrino oscillation parameters by SUPER-KAMIOKANDE I 査読

Ashie, Y., Hosaka, J., Ishihara, K., Itow, Y., Kameda, J., Koshio, Y., Minamino, A., Mitsuda, C., Miura, M., Moriyama, S., Nakahata, M., Namba, T., Nambu, R., Obayashi, Y., Shiozawa, M., Suzuki, Y., Takeuchi, Y., Taki, K., Yamada, S., Ishitsuka, M., Kajita, T., Kaneyuki, K., Nakayama, S., Okada, A., Okumura, K., Saji, C., Takenaga, Y., Clark, S.T., Desai, S., Kearns, E., Likhoded, S., Stone, J.L., Sulak, L.R., Wang, W., Goldhaber, M., Casper, D., Cravens, J.P., Gajewski, W., Kropp, W.R., Liu, D.W., Mine, S., Smy, M.B., Sobel, H.W., Sterner, C.W., Vagins, M.R., Ganezer, K.S., Hill, J., Keig, W.E., Jang, J.S., Kim, J.Y., Lim, I.T., Scholberg, K., Walter, C.W., Ellsworth, R.W., Tasaka, S., Guillian, G., Kibayashi, A., Learned, J.G., Matsuno, S., Takemori, D., Messier, M.D., Hayato, Y., Ichikawa, A.K., Ishida, T., Ishii, T., Iwashita, T., Kobayashi, T., Maruyama, T., Nakamura, K., Nitta, K., Oyama, Y., Sakuda, M., Totsuka, Y., Suzuki, A.T., Hasegawa, M., Hayashi, K., Kato, I., Maesaka, H., Morita, T., Nakaya, T., Nishikawa, K., Sasaki, T., Ueda, S., Yamamoto, S., Haines, T.J., Dazeley, S., Hatakeyama, S., Svoboda, R., Blaufuss, E., Goodman, J.A., Sullivan, G.W., Turcan, D., Habig, Alec, Fukuda, Y., Jung, C.K., Kato, T., Kobayashi, K., Malek, M., Mauger, C., McGrew, C., Sarrat, A., Sharkey, E., Yanagisawa, C., Toshito, T., Miyano, K., Tamura, N., Ishii, J., Kuno, Y., Yoshida, M., Kim, S.B., Yoo, J., Okazawa, H., Ishizuka, T., Choi, Y., Seo, H.K., Gando, Y., Hasegawa, T., Inoue, K., Shirai, J., Suzuki, A., Koshiba, M., Nakajima, Y., Nishijima, K., Harada, T., Ishino, H., Watanabe, Y., Kielczewska, D., Zalipska, J., Berns, H.G., Gran, R., Shiraishi, K.K., Stachyra, A., Washburn, K., Wilkes, R.J.

Phys.Rev.D 71 ( 11 ) 112005 - 112005 2005年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevD.71.112005

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arXiv

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Search for nucleon decay via modes favored by supersymmetric grand unification models in Super-Kamiokande-I 査読

Kobayashi, K., Earl, M., Ashie, Y., Hosaka, J., Ishihara, K., Itow, Y., Kameda, J., Koshio, Y., Minamino, A., Mitsuda, C., Miura, M., Moriyama, S., Nakahata, M., Namba, T., Nambu, R., Obayashi, Y., Shiozawa, M., Suzuki, Y., Takeuchi, Y., Taki, K., Yamada, S., Ishitsuka, M., Kajita, T., Kaneyuki, K., Nakayama, S., Okada, A., Okumura, K., Ooyabu, T., Saji, C., Takenaga, Y., Desai, S., Kearns, E., Likhoded, S., Stone, J.L., Sulak, L.R., Wang, W., Goldhaber, M., Casper, D., Cravens, J.P., Gajewski, W., Kropp, W.R., Liu, D.W., Mine, S., Smy, M.B., Sobel, H.W., Sterner, C.W., Vagins, M.R., Ganezer, K.S., Hill, J.E., Keig, W.E., Jang, J.S., Kim, J.Y., Lim, I.T., Scholberg, K., Walter, C.W., Ellsworth, R.W., Tasaka, S., Guillian, G., Kibayashi, A., Learned, J.G., Matsuno, S., Takemori, D., Messier, M.D., Hayato, Y., Ichikawa, A.K., Ishida, T., Ishii, T., Iwashita, T., Kobayashi, T., Maruyama, T., Nakamura, K., Nitta, K., Oyama, Y., Sakuda, M., Totsuka, Y., Suzuki, A.T., Hasegawa, M., Hayashi, K., Kato, I., Maesaka, H., Morita, T., Nakadaira, T., Nakaya, T., Nishikawa, K., Sasaki, T., Ueda, S., Yamamoto, S., Yokoyama, M., Haines, T.J., Dazeley, S., Hatakeyama, S., Svoboda, R., Blaufuss, E., Goodman, J.A., Sullivan, G.W., Turcan, D., Habig, Alec, Fukuda, Y., Jung, C.K., Kato, T., Malek, M., Mauger, C., McGrew, C., Sarrat, A., Sharkey, E., Yanagisawa, C., Toshito, T., Miyano, K., Tamura, N., Ishii, J., Kuno, Y., Yoshida, M., Kim, S.B., Yoo, J., Okazawa, H., Ishizuka, T., Choi, Y., Seo, H.K., Gando, Y., Hasegawa, T., Inoue, K., Shirai, J., Suzuki, A., Koshiba, M., Nakajima, Y., Nishijima, K., Harada, T., Ishino, H., Watanabe, Y., Kielczewska, D., Zalipska, J., Berns, H.G., Gran, R., Shiraishi, K.K., Stachyra, A., Washburn, K., Wilkes, R.J.

Phys.Rev.D 72 ( 052007 ) 052007 - 052007 2005年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevD.72.052007

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arXiv

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Measurement of atmospheric neutrino oscillation parameters by Super-Kamiokande I 査読

Y. Ashie, J. Hosaka, K. Ishihara, Y. Itow, J. Kameda, Y. Koshio, A. Minamino, C. Mitsuda, M. Miura, S. Moriyama, M. Nakahata, T. Namba, R. Nambu, Y. Obayashi, M. Shiozawa, Y. Suzuki, Y. Takeuchi, K. Taki, S. Yamada, M. Ishitsuka, T. Kajita, K. Kaneyuki, S. Nakayama, A. Okada, K. Okumura, C. Saji, Y. Takenaga, S. T. Clark, S. Desai, E. Kearns, S. Likhoded, J. L. Stone, L. R. Sulak, W. Wang, M. Goldhaber, D. Casper, J. P. Cravens, W. Gajewski, W. R. Kropp, D. W. Liu, S. Mine, M. B. Smy, H. W. Sobel, C. W. Sterner, M. R. Vagins, K. S. Ganezer, J. Hill, W. E. Keig, J. S. Jang, J. Y. Kim, I. T. Lim, K. Scholberg, C. W. Walter, R. W. Ellsworth, S. Tasaka, G. Guillian, A. Kibayashi, J. G. Learned, S. Matsuno, D. Takemori, M. D. Messier, Y. Hayato, A. K. Ichikawa, T. Ishida, T. Ishii, T. Iwashita, T. Kobayashi, T. Maruyama, K. Nakamura, K. Nitta, Y. Oyama, M. Sakuda, Y. Totsuka, M. Hasegawa, K. Hayashi, I. Kato, H. Maesaka, T. Morita, K. Nishikawa, T. Sasaki, S. Ueda, S. Yamamoto, T. J. Haines, S. Dazeley, S. Hatakeyama, R. Svoboda, E. Blaufuss, J. A. Goodman, G. W. Sullivan, D. Turcan, A. Habig, Y. Fukuda, C. K. Jung, M. Malek, C. Mauger, C. McGrew, A. Sarrat, E. Sharkey, C. Yanagisawa, T. Toshito, K. Miyano, N. Tamura, Y. Kuno, M. Yoshida, S. B. Kim, J. Yoo, H. Okazawa, T. Ishizuka, Y. Choi, H. K. Seo, Y. Gando, K. Inoue, J. Shirai, M. Koshiba, Y. Nakajima, K. Nishijima, T. Harada, H. Ishino, Y. Watanabe, D. Kielczewska, J. Zalipska, H. G. Berns, R. Gran, K. K. Shiraishi, A. Stachyra, K. Washburn, R. J. Wilkes

Physical Review D 71 ( 11 ) 2005年

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掲載種別：研究論文（学術雑誌）

We present a combined analysis of fully-contained, partially-contained and upward-going muon atmospheric neutrino data from a 1489d exposure of the Super-Kamiokande detector. The data samples span roughly five decades in neutrino energy, from 100MeV to 10eV. A detailed Monte Carlo comparison is described and presented. The data is fit to the Monte Carlo expectation, and is found to be consistent with neutrino oscillations of νμντ with sin22θ>0.92 and 1.5×10-3<Δm2<3.4×10-3eV2 at 90% confidence level. © 2005 The American Physical Society.

DOI： 10.1103/PHYSREVD.71.112005

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Scopus

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Readout, first- and second-level triggers of the new Belle silicon vertex detector 査読

M Friedl, R Abe, T Abe, H Aihara, Y Asano, T Aso, A Bakich, T Browder, MC Chang, Y Chao, KF Chen, S Chidzik, J Dalseno, R Dowd, J Dragic, CW Everton, R Fernholz, H Fujii, ZW Gao, A Gordon, YN Guo, J Haba, K Hara, T Hara, Y Harada, T Haruyama, K Hasuko, K Hayashi, M Hazumi, EM Heenan, T Higuchi, H Hirai, N Hitomi, A Igarashi, Y Igarashi, H Ikeda, H Ishino, K Itoh, S Iwaida, J Kaneko, P Kapusta, R Karawatzki, K Kasami, H Kawai, T Kawasaki, A Kibayashi, S Koike, S Korpar, P Krizan, H Kurashiro, A Kusaka, T Lesiak, A Limosani, WC Lin, D Marlow, H Matsumoto, Y Mikami, H Miyake, GR Moloney, T Mori, T Nakadaira, Y Nakano, Z Natkaniec, S Nozaki, R Ohkubo, F Ohno, S Okuno, Y Onuki, W Ostrowicz, H Ozaki, L Peak, M Pernicka, M Rosen, M Rozanska, N Sato, S Schmid, T Shibata, R Stamen, S Stanic, H Steininger, K Sumisawa, J Suzuki, H Tajima, O Tajima, K Takahashi, F Takasaki, N Tamura, M Tanaka, GN Taylor, H Terazaki, T Tomura, K Trabelsi, W Trischuk, T Tsuboyama, K Uchida, K Ueno, K Ueno, N Uozaki, Y Ushiroda, S Vahsen, G Varner, K Varvell, YS Velikzhanin, CC Wang, MZ Wang, M Watanabe, Y Watanabe, Y Yamada, H Yamamoto, Y Yamashita, Y Yamashita, M Yamauchi, H Yanai, R Yang, Y Yasu, M Yokoyama, T Ziegler, D Zontar

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 535 ( 1-2 ) 491 - 496 2004年12月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

A major upgrade of the Silicon Vertex Detector (SVD 2.0) of the Belle experiment at the KEKB factory was installed along with new front-end and back-end electronics systems during the summer shutdown period in 2003 to cope with higher particle rates, improve the track resolution and meet the increasing requirements of radiation tolerance.
The SVD 2.0 detector modules are read out by VA1TA chips which provide "fast or" (hit) signals that are combined by the back-end FADCTF modules to coarse, but immediate level 0 track trigger signals at rates of several tens of a kHz. Moreover, the digitized detector signals are compared to threshold lookup tables in the FADCTFs to pass on hit information on a single strip basis to the subsequent level 1.5 trigger system, which reduces the rate below the kHz range. Both FADCTF and level 1.5 electronics make use of parallel real-time processing in Field Programmable Gate Arrays (FPGAs), while further data acquisition and event building is done by PC farms running Linux.
The new readout system hardware is described and the first results obtained with cosmics are shown. (C) 2004 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.nima.2004.07.178

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BELLE/SVD2 status and performance 査読

R Abe, T Abe, H Aihara, Y Asano, T Aso, A Bakich, T Browder, MC Chang, Y Chao, KF Chen, S Chidzik, J Dalseno, R Dowd, J Dragic, CW Everton, R Fernholz, M Friedl, H Fujii, ZW Gao, A Gordon, YN Guo, J Haba, K Hara, T Hara, Y Harada, T Haruyama, K Hasuko, K Hayashi, M Hazumi, EM Heenan, T Higuchi, H Hirai, N Hitomi, A Igarashi, Y Igarashi, H Ikeda, H Ishino, K Itoh, S Iwaida, J Kaneko, P Kapusta, R Karawatzki, K Kasami, H Kawai, T Kawasaki, A Kibayashi, S Koike, S Korpar, P Krizan, H Kurashiro, A Kusaka, T Lesiak, A Limosani, WC Lin, D Marlow, H Matsumoto, Y Mikami, H Miyake, GR Moloney, T Mori, T Nakadaira, Y Nakano, Z Natkaniec, S Nozaki, R Ohkubo, F Ohno, S Okuno, Y Onuki, W Ostrowicz, H Ozaki, L Peak, M Pernicka, M Rosen, M Rozanska, N Sato, S Schmid, T Shibata, R Stamen, S Stanic, H Steininger, K Sumisawa, J Suzuki, H Tajima, O Tajima, K Takahashi, F Takasaki, N Tamura, M Tanaka, GN Taylor, H Terazaki, T Tomura, K Trabelsi, W Trischuk, T Tsuboyama, K Uchida, K Ueno, K Ueno, N Uozaki, Y Ushiroda, S Vahsen, G Varner, K Varvell, YS Velikzhanin, CC Wang, MZ Wang, M Watanabe, Y Watanabe, Y Yamada, H Yamamoto, Y Yamashita, Y Yamashita, M Yamauchi, H Yanai, R Yang, Y Yasu, M Yokoyama, T Ziegler, D Zontar

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 535 ( 1-2 ) 379 - 383 2004年12月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

A new silicon vertex detector for the BELLE experiment was installed and its operation has started successfully at the high-luminosity asymmetric energy e(+)e(-) collider KEKB in October 2003. This vertex detector provides a larger polar angle acceptance, a more precise vertex resolution and a better radiation tolerance than the previous one. The obtained performances indicate that the SVD2 works reliably as expected. Moreover, a prospective simulation study shows that the SVD2 should work under the coming higher background conditions. (C) 2004 Published by Elsevier B.V.

DOI： 10.1016/j.nima.2004.07.156

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Study of time-dependent CP violation in B-0 -> J/psi pi(0) decays 査読

SU Kataoka, K Abe, K Abe, Adachi, I, H Aihara, M Akatsu, Y Asano, T Aushev, S Bahinipati, AM Bakich, A Bay, Bedny, I, U Bitenc, Bizjak, I, A Bondar, M Bracko, Y Chao, A Chen, WT Chen, BG Cheon, R Chistov, Y Choi, M Danilov, M Dash, LY Dong, J Dragic, S Eidelman, Eiges, V, Y Enari, F Fang, S Fratina, N Gabyshev, A Garmash, T Gershon, A Go, G Gokhroo, B Golob, J Haba, K Hara, NC Hastings, K Hayasaka, H Hayashii, M Hazumi, T Higuchi, L Hinz, T Hokuue, Y Hoshi, S Hou, WS Hou, YB Hsiung, T Iijima, A Imoto, K Inami, A Ishikawa, H Ishino, R Itoh, M Iwasaki, Y Iwasaki, JH Kang, JS Kang, P Kapusta, N Katayama, H Kawai, T Kawasaki, HR Khan, HJ Kim, K Kinoshita, P Koppenburg, S Korpar, P Krizan, P Krokovny, CC Kuo, A Kuzmin, YJ Kwon, JS Lange, G Leder, SE Lee, SH Lee, T Lesiak, J Li, SW Lin, J MacNaughton, F Mandl, T Matsumoto, W Mitaroff, K Miyabayashi, H Miyake, H Miyata, D Mohapatra, T Mori, T Nagamine, Y Nagasaka, E Nakano, H Nakazawa, Z Natkaniec, S Nishida, O Nitoh, S Noguchi, S Ogawa, T Ohshima, T Okabe, S Okuno, SL Olsen, Y Onuki, W Ostrowicz, H Ozaki, P Pakhlov, H Palka, H Park, LS Peak, LE Piilonen, FJ Ronga, M Rozanska, H Sagawa, Y Sakai, N Sato, T Schietinger, O Schneider, J Schumann, AJ Schwartz, S Semenov, K Senyo, ME Sevior, T Shibata, H Shibuya, JB Singh, A Somov, N Soni, R Stamen, M Staric, K Sumisawa, T Sumiyoshi, O Tajima, F Takasaki, N Tamura, M Tanaka, GN Taylor, Y Teramoto, K Trabelsi, T Tsukamoto, K Ueno, S Uno, G Varner, S Villa, CC Wang, CH Wang, M Watanabe, BD Yabsley, A Yamaguchi, Y Yamashita, H Yang, J Ying, Y Yuan, SL Zang, CC Zhang, J Zhang, LM Zhang, ZP Zhang, Zhilich, V, T Ziegler, D Zontar

PHYSICAL REVIEW LETTERS 93 ( 26 ) 1 - 6 2004年12月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report a measurement of CP asymmetry parameters in the decay B-0((B) over bar (0))-->J/psipi(0), which is governed by the b-->c(c) over bar d transition. The analysis is based on a 140 fb(-1) data sample accumulated at the Y(4S) resonance by the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. One neutral B meson in the J/psipi(0) final state is fully reconstructed for events used in this analysis. The accompanying B meson flavor is identified by its decay products. From the distribution of proper-time intervals between the two B decays, we obtain the following CP-violating parameters: S-J/psipi(0)=-0.72+/-0.42(stat)+/-0.09(syst) and A(J/psipi)(0)=-0.01+/-0.29(stat)+/-0.03(syst).

DOI： 10.1103/PhysRevLett.93.261801

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The new beampipe for the Belle experiment 査読

R Abe, T Abe, H Aihara, Y Asano, T Aso, A Bakich, T Browder, MC Chang, Y Chao, KF Chen, S Chidzik, J Dalseno, R Dowd, J Dragic, CW Everton, R Fernholz, M Friedl, H Fujii, ZW Gao, A Gordon, YN Guo, J Haba, K Hara, T Hara, Y Harada, T Haruyama, K Hasuko, K Hayashi, M Hazumi, EM Heenan, T Higuchi, H Hirai, N Hitomi, A Igarashi, Y Igarashi, H Ikeda, H Ishino, K Itoh, S Iwaida, J Kaneko, P Kapusta, R Karawatzki, K Kasami, H Kawai, T Kawasaki, A Kibayashi, S Koike, S Korpar, P Krizan, H Kurashiro, A Kusaka, T Lesiak, A Limosani, WC Lin, D Marlow, H Matsumoto, Y Mikami, H Miyake, GR Moloney, T Mori, T Nakadaira, Y Nakano, Z Natkaniec, S Nozaki, R Ohkubo, F Ohno, S Okuno, Y Onuki, W Ostrowicz, H Ozaki, L Peak, M Pernicka, M Rosen, M Rozanska, N Sato, S Schmid, T Shibata, R Stamen, S Stanic, H Steininger, K Sumisawa, J Suzuki, H Tajima, O Tajima, K Takahashi, F Takasaki, N Tamura, M Tanaka, GN Taylor, H Terazaki, T Tomura, K Trabelsi, W Trischuk, T Tsuboyama, K Uchida, K Ueno, K Ueno, N Uozaki, Y Ushiroda, S Vahsen, G Varner, K Varvell, YS Velikzhanin, CC Wang, MZ Wang, M Watanabe, Y Watanabe, Y Yamada, H Yamamoto, Y Yamashita, Y Yamashita, M Yamauchi, H Yanai, R Yang, Y Yasu, M Yokoyama, T Ziegler, D Zontar

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 535 ( 1-2 ) 558 - 561 2004年12月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

We have upgraded the beampipe and the silicon vertex tracker of the Belle detector for increased luminosity and to achieve better vertex resolution. The radius of the beampipe was reduced from 2 to 1.5 cm to achieve better vertex resolution. In order to reduce the beam background that could accompany the reduction of the beampipe radius, a massive mask made of tantalum and tungsten was placed on each side of the central section. The total weight of them is 40 kg. The maximum radiation dose of the silicon tracker is measured about 80 krad/yr. This is lower than the dose of 100 krad per year with the previous beampipe even though the beampipe radius is smaller. The beampipe is designed to minimize heating, and enough cooling power is provided by the liquid cooling. (C) 2004 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.nima.2004.07.260

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Search for CP violation in the decay B-0 ->(DD -/+)-D-*+/- 査読

T Aushev, Y Iwasaki, K Abe, K Abe, Adachi, I, H Aihara, M Akatsu, Y Asano, T Aziz, S Bahinipati, AM Bakich, A Bay, Bedny, I, U Bitenc, Bizjak, I, S Blyth, A Bondar, A Bozek, M Bracko, J Brodzicka, P Chang, Y Chao, A Chen, WT Chen, BG Cheon, R Chistov, Y Choi, A Chuvikov, M Danilov, M Dash, LY Dong, J Dragic, A Drutskoy, S Eidelman, Eiges, V, Y Enari, F Fang, S Fratina, N Gabyshev, A Garmash, T Gershon, G Gokhroo, B Golob, NC Hastings, K Hayasaka, M Hazumi, T Higuchi, L Hinz, T Hokuue, Y Hoshi, S Hou, WS Hou, T Iijima, A Imoto, K Inami, A Ishikawa, H Ishino, R Itoh, M Iwasaki, JH Kang, JS Kang, SU Kataoka, N Katayama, H Kawai, T Kawasaki, HR Khan, HJ Kim, SK Kim, K Kinoshita, P Koppenburg, S Korpar, P Krizan, P Krokovny, CC Kuo, A Kuzmin, YJ Kwon, JS Lange, G Leder, SH Lee, T Lesiak, J Li, SW Lin, D Liventsev, J MacNaughton, F Mandl, T Matsumoto, W Mitaroff, K Miyabayashi, H Miyake, H Miyata, R Mizuk, D Mohapatra, T Mori, T Nagamine, Y Nagasaka, E Nakano, M Nakao, H Nakazawa, Z Natkaniec, S Nishida, O Nitoh, S Ogawa, T Ohshima, T Okabe, S Okuno, SL Olsen, W Ostrowicz, H Ozaki, P Pakhlov, H Palka, H Park, LS Peak, LE Piilonen, H Sagawa, Y Sakai, N Sato, T Schietinger, O Schneider, J Schumann, AJ Schwartz, S Semenov, K Senyo, ME Sevior, H Shibuya, A Somov, N Soni, R Stamen, M Staric, K Sumisawa, T Sumiyoshi, O Tajima, F Takasaki, N Tamura, M Tanaka, GN Taylor, Y Teramoto, K Trabelsi, T Tsukamoto, S Uehara, T Uglov, K Ueno, S Uno, G Varner, KE Varvell, S Villa, CC Wang, CH Wang, BD Yabsley, A Yamaguchi, Y Yamashita, J Ying, Y Yuan, SL Zang, J Zhang, LM Zhang, ZP Zhang, Zhilich, V, D Zontar

PHYSICAL REVIEW LETTERS 93 ( 20 ) 1 - 6 2004年11月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report a search for CP-violating asymmetry in B-0-->D*+/-D-/+ decays. The analysis employs two methods of B-0 reconstruction: full and partial. In the full reconstruction method all daughter particles of the B-0 are required to be detected; the partial reconstruction technique requires a fully reconstructed D- and only a slow pion from the D*+-->D(0)pi(slow)(+) decay. From a fit to the distribution of the time interval corresponding to the distance between two B meson decay points we calculate the CP-violating parameters and find the significance of nonzero CP asymmetry to be 2.7 standard deviations.

DOI： 10.1103/PhysRevLett.93.201802

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Evidence for direct CP violation in B-0 -> K+pi(-) decays 査読

Y Chao, P Chang, K Abe, K Abe, N Abe, Adachi, I, H Aihara, K Akai, M Akatsu, M Akemoto, Y Asano, T Aso, Aulchenko, V, T Aushev, T Aziz, S Bahinipati, AM Bakich, Y Ban, M Barbero, A Bay, Bedny, I, U Bitenc, Bizjak, I, S Blyth, A Bondar, A Bozek, M Bracko, J Brodzicka, TE Browder, MC Chang, A Chen, KF Chen, WT Chen, BG Cheon, R Chistov, SK Choi, Y Choi, YK Choi, A Chuvikov, S Cole, M Danilov, M Dash, LY Dong, R Dowd, J Dragic, A Drutskoy, S Eidelman, Eiges, V, Y Enari, D Epifanov, CW Everton, F Fang, J Flanagan, S Fratina, H Fujii, Y Funakoshi, K Furukawa, N Gabyshev, A Garmash, T Gershon, A Go, G Gokhroo, B Golob, MG Perdekamp, H Guler, R Guo, J Haba, C Hagner, F Handa, K Hara, T Hara, NC Hastings, K Hasuko, K Hayasaka, H Hayashii, M Hazumi, EM Heenan, Higuchi, I, T Higuchi, L Hinz, T Hojo, T Hokuue, Y Hoshi, K Hoshina, S Hou, WS Hou, YB Hsiung, HC Huang, T Igaki, Y Igarashi, T Iijima, H Ikeda, A Imoto, K Inami, A Ishikawa, H Ishino, K Itoh, R Itoh, M Iwamoto, M Iwasaki, Y Iwasaki, R Kagan, H Kakuno, T Kamitani, JH Kang, JS Kang, P Kapusta, SU Kataoka, N Katayama, H Kawai, H Kawai, Y Kawakami, N Kawamura, T Kawasaki, N Kent, HR Khan, A Kibayashi, H Kichimi, M Kikuchi, E Kikutani, HJ Kim, HO Kim, H Kim, JH Kim, SK Kim, TH Kim, K Kinoshita, S Kobayashi, H Koiso, P Koppenburg, S Korpar, P Krizan, P Krokovny, T Kubo, R Kulasiri, S Kumar, CC Kuo, H Kurashiro, E Kurihara, A Kusaka, A Kuzmin, YJ Kwon, JS Lange, G Leder, SE Lee, SH Lee, YJ Lee, T Lesiak, J Li, A Limosani, SW Lin, D Liventsev, J MacNaughton, G Majumder, F Mandl, D Marlow, M Masuzawa, T Matsuishi, H Matsumoto, S Matsumoto, T Matsumoto, A Matyja, S Michizono, Y Mikami, T Mimashi, W Mitaroff, K Miyabayashi, Y Miyabayashi, H Miyake, H Miyata, R Mizuk, D Mohapatra, GR Moloney, GF Moorhead, T Mori, J Mueller, A Murakami, T Nagamine, Y Nagasaka, T Nakadaira, Nakamura, I, TT Nakamura, E Nakano, M Nakao, H Nakayama, H Nakazawa, Z Natkaniec, K Neichi, S Nishida, O Nitoh, S Noguchi, T Nozaki, A Ogawa, S Ogawa, Y Ogawa, K Ohmi, Y Ohnishi, T Ohshima, N Ohuchi, K Oide, T Okabe, S Okuno, SL Olsen, Y Onuki, W Ostrowicz, H Ozaki, P Pakhlov, H Palka, CW Park, H Park, KS Park, N Parslow, LS Peak, M Pernicka, JP Perroud, M Peters, LE Piilonen, A Poluektov, FJ Ronga, N Root, M Rozanska, H Sagawa, M Saigo, S Saitoh, Y Sakai, H Sakamoto, H Sakaue, TR Sarangi, M Satapathy, N Sato, T Schietinger, O Schneider, J Schumann, C Schwanda, AJ Schwartz, T Seki, S Semenov, K Senyo, Y Settai, R Seuster, ME Sevior, T Shibata, H Shibuya, T Shidara, B Shwartz, Sidorov, V, Siegle, V, JB Singh, A Somov, N Soni, R Stamen, S Stanic, M Staric, R Sugahara, A Sugi, T Sugimura, A Sugiyama, K Sumisawa, T Sumiyoshi, S Suzuki, SY Suzuki, SK Swain, O Tajima, F Takasaki, K Tamai, N Tamura, K Tanabe, M Tanaka, M Tawada, GN Taylor, Y Teramoto, XC Tian, S Tokuda, SN Tovey, K Trabelsi, T Tsuboyama, T Tsukamoto, K Uchida, S Uehara, T Uglov, K Ueno, Y Unno, S Uno, Y Ushiroda, G Varner, KE Varvell, S Villa, CC Wang, CH Wang, JG Wang, MZ Wang, M Watanabe, Y Watanabe, L Widhalm, QL Xie, BD Yabsley, A Yamaguchi, H Yamamoto, N Yamamoto, S Yamamoto, T Yamanaka, Y Yamashita, M Yamauchi, H Yang, P Yeh, J Ying, K Yoshida, M Yoshida, Y Yuan, Y Yusa, H Yuta, SL Zang, CC Zhang, J Zhang, LM Zhang, ZP Zhang, Y Zheng, Zhilich, V, T Ziegler, D Zontar, D Zurcher

PHYSICAL REVIEW LETTERS 93 ( 19 ) 1 - 6 2004年11月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report evidence for direct CP violation in the decay B-0-->K(+)pi(-) with 253 fb(-1) of data collected with the Belle detector at the KEKB e(+)e(-) collider. Using 275x10(6) B(B) over bar pairs we observe a B-->K(+/-)pi(-/+) signal with 2140+/-53 events. The measured CP violating asymmetry is A(CP)(K(+)pi(-))=-0.101+/-0.025(stat)+/-0.005(syst), corresponding to a significance of 3.9sigma including systematics. We also search for CP violation in the decays B+-->K(+)pi(0) and B+-->pi(+)pi(0). The measured CP violating asymmetries are A(CP)(K(+)pi(0))=0.04+/-0.05(stat)+/-0.02(syst) and A(CP)(pi(+)pi(0))=-0.02+/-0.10(stat)+/-0.01(syst), corresponding to the intervals -0.05< A(CP)(K(+)pi(0))<0.13 and -0.18< A(CP)(pi(+)pi(0))<0.14 at 90% confidence level.

DOI： 10.1103/PhysRevLett.93.191802

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The data acquisition system of the Belle silicon vertex detector (SVD) upgrade 査読

H Ishino, R Abe, T Abe, H Aihara, Y Asano, T Aso, A Bakich, T Browder, MC Chang, Y Chao, KF Chen, S Chidzik, J Dalseno, R Dowd, J Dragic, CW Everton, R Fernholz, M Friedl, H Fujii, ZW Gao, A Gordon, YN Guo, J Haba, J Hara, T Hara, Y Harada, T Haruyama, K Hasuko, K Hayashi, M Hazumi, EM Heenan, T Higuchi, H Hirai, N Hitomi, A Igarashi, Y Igarashi, H Ikeda, K Itoh, S Iwaida, J Kaneko, P Kapusta, R Karawatzki, K Kasami, H Kawai, T Kawasaki, A Kibayashi, S Koike, S Korpar, P Krizan, H Kurashiro, A Kusaka, T Lesiak, A Limosani, WC Lin, D Marlow, H Matsumoto, Y Mikami, H Miyake, GR Moloney, T Mori, T Nakadaira, Y Nakano, Z Natkaniec, S Nozaki, R Ohkubo, F Ohno, S Okuno, Y Onuki, W Ostrowicz, H Ozaki, L Peak, M Pernicka, M Rosen, M Rozanska, N Sato, S Schmid, T Shibata, R Stamen, S STanic, H Steininger, K Sumisawa, J Suzuki, H Tajima, O Tajima, K Takahashi, F Takasaki, N Tamura, M Tanaka, GN Taylor, H Terazaki, T Tomura, K Trabelsi, W Trischuk, T Tsuboyama, K Uchiba, K Ueno, K Ueno, N Uozaki, Y Ushiroda, S Vahsen, G Varner, K Varvell, YS Velikzhanin, CC Wang, MZ Wang, M Watanabe, Y Watanabe, Y Yamada, H Yamamoto, Y Yamashita, Y Yamashita, M Yamauchi, H Yanai, R Yang, Y Yasu, M Yokoyama, T Ziegler, D Zontar

IEEE TRANSACTIONS ON NUCLEAR SCIENCE 51 ( 5 ) 2064 - 2068 2004年10月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC

A newly developed data acquisition system (DAQ) for the upgraded silicon vertex detector (SVD2) in the Belle experiment is described. The system consists of 12 PCs connected through PCI I/O boards to 36 flash analog-to-digital converters (FADCs) to read out a system comprising a total of 110 592 strips. It is designed to cope with the increased number of readout channels and the maximum trigger rate of 1 kHz, foreseen in the future operation with higher beam currents. A measurement of the system performance using sparsification algorithm we have developed yields a 1.3-kHz readout rate for a 5% occupancy with less than 5% dead time, which satisfies the requirements on the maximum trigger rate.

DOI： 10.1109/tns.2004.832649

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The Belle trigger system with the new silicon vertex detector SVD2 査読

T Ziegler, R Abe, T Abe, H Aihara, Y Asano, T Aso, A Bakich, T Browder, MC Chang, Y Chao, KE Chen, S Chidzik, J Dalseno, R Dowd, J Dragic, CW Everton, R Fernholz, M Friedl, H Fujii, ZW Gao, A Gordon, YN Guo, J Haba, K Hara, T Hara, Y Harada, T Haruyama, K Hasuko, K Hayashi, M Hazumi, EM Heenan, T Higuchi, H Hirai, N Hitomi, A Igarashi, Y Igarashi, H Ikeda, H Ishino, K Itoh, S Iwaida, J Kaneko, P Kapusta, R Karawatzki, K Kasami, H Kawai, T Kawasaki, A Kibayashi, S Koike, S Korpar, P Krizan, H Kurashiro, A Kusaka, T Lesiak, A Limosani, WC Lin, D Marlow, H Matsumoto, Y Mikami, H Miyake, GR Moloney, T Mori, T Nakadaira, Y Nakano, Z Natkaniec, S Nozaki, R Ohkubo, F Ohno, S Okuno, Y Onuki, W Ostrowicz, H Ozaki, L Peak, M Pernicka, M Rosen, M Rozanska, N Sato, S Schmid, T Shibata, R Stamen, S Stanic, H Steininger, K Sumisawa, J Suzuki, H Tajima, O Tajima, K Takahashi, F Takasaki, N Tamura, M Tanaka, GN Taylor, H Terazaki, T Tomura, K Trabelsi, W Trischuk, T Tsuboyama, K Uchida, K Ueno, K Ueno, N Uozaki, Y Ushiroda, S Vahsen, G Varner, K Varvell, YS Velikzhanin, CC Wang, MZ Wang, M Watanabe, Y Watanabe, Y Yamada, H Yamamoto, Y Yamashita, Y Yamashita, M Yamauchi, H Yanai, R Yang, Y Yasu, M Yokoyama, Zontar

IEEE TRANSACTIONS ON NUCLEAR SCIENCE 51 ( 4 ) 1852 - 1856 2004年8月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC

During the summer shutdown of 2003, the new silicon vertex detector SVD2 was installed in Belle at the KEKB factory and started to take data in October 2003. It provides important improvements in the tracking capabilities and adds new trigger functionality. In addition, a new hardware trigger Level 1.5 was designed and installed that takes advantage of the digitized SVD hit data. The improvement in the Belle trigger system will be important to deal with the increasing luminosity and higher beam currents of the KEKB factory.

DOI： 10.1109/TNS.2004.832716

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Observation of large CP violation and evidence for direct CP violation in B0+p- decays 査読

K Abe, K Abe, N Abe, T Abe, Adachi, I, H Aihara, K Akai, M Akatsu, M Akemoto, Y Asano, T Aso, Aulchenko, V, T Aushev, AM Bakich, Y Ban, S Banerjee, A Bay, Bedny, I, Bizjak, I, A Bondar, A Bozek, M Bracko, TE Browder, Y Chao, KF Chen, BG Cheon, R Chistov, SK Choi, Y Choi, A Chuvikov, S Cole, M Danilov, J Dragic, A Drutskoy, S Eidelman, Eiges, V, Y Enari, D Epifanov, J Flanagan, K Furukawa, N Gabyshev, A Garmash, T Gershon, B Golob, J Haba, K Hara, NC Hastings, H Hayashii, M Hazumi, L Hinz, T Hokuue, Y Hoshi, WS Hou, YB Hsiung, HC Huang, T Iijima, H Ikeda, K Inami, A Ishikawa, H Ishino, R Itoh, H Iwasaki, M Iwasaki, Y Iwasaki, H Kakuno, T Kamitani, JH Kang, JS Kang, P Kapusta, SU Kataoka, N Katayama, H Kawai, T Kawasaki, A Kibayashi, H Kichimi, E Kikutani, HJ Kim, JH Kim, SK Kim, K Kinoshita, P Koppenburg, S Korpar, P Krizan, P Krokovny, S Kumar, A Kuzmin, YJ Kwon, JS Lange, G Leder, SH Lee, YJ Lee, T Lesiak, J Li, A Limosani, SW Lin, D Liventsev, J MacNaughton, F Mandl, D Marlow, H Matsumoto, T Matsumoto, A Matyja, S Michizono, T Mimashi, W Mitaroff, K Miyabayashi, H Miyake, H Miyata, D Mohapatra, GR Moloney, A Murakami, T Nagamine, Y Nagasaka, T Nakadaira, TT Nakamura, E Nakano, M Nakao, H Nakazawa, Z Natkaniec, K Neichi, S Nishida, O Nitoh, S Noguchi, T Nozaki, S Ogawa, Y Ogawa, K Ohmi, T Ohshima, N Ohuchi, K Oide, T Okabe, S Okuno, SL Olsen, W Ostrowicz, H Ozaki, P Pakhlov, H Palka, CW Park, H Park, N Parslow, LE Piilonen, N Root, M Rozanska, H Sagawa, Y Sakai, O Schneider, J Schumann, C Schwanda, AJ Schwartz, S Semenov, K Senyo, H Shibuya, T Shidara, B Shwartz, Sidorov, V, JB Singh, N Soni, R Stamen, S Stanic, M Staric, R Sugahara, K Sumisawa, T Sumiyoshi, K Suzuki, S Suzuki, O Tajima, F Takasaki, K Tamai, N Tamura, M Tanaka, M Tawada, Y Teramoto, T Tomura, T Tsuboyama, T Tsukamoto, S Uehara, T Uglov, K Ueno, Y Unno, S Uno, G Varner, KE Varvell, CC Wang, CH Wang, MZ Wang, Y Watanabe, BD Yabsley, Y Yamada, A Yamaguchi, Y Yamashita, M Yamauchi, H Yanai, HY Yang, J Ying, M Yokoyama, M Yoshida, Y Yusa, CC Zhang, ZP Zhang, T Ziegler, D Zontar, D Zurcher

PHYSICAL REVIEW LETTERS 93 ( 2 ) 1 - 5 2004年7月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report the first observation of CP violation in B(pp)(pp)(pp)(pp)(pp)(0+p- decays based on 152x106 U(4S)B (B) over bar decays collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. We reconstruct a B0+p- CP eigenstate and identify the flavor of the accompanying B meson from its decay products. From the distribution of the time intervals between the two B meson decay points, we obtain A)(=+0.580.15(stat)0.07(syst) and S)(=-1.000.21(stat)0.07(syst). We rule out the CP-conserving case, A)(=S)(=0, at a level of 5.2 standard deviations. We also find evidence for direct CP violation with a significance at or greater than 3.2 standard deviations for any S) value.

DOI： 10.1103/PhysRevLett.93.021601

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Measurement of the CP asymmetry in B -> X-s gamma 査読

S Nishida, K Abe, K Abe, T Abe, H Aihara, Y Asano, T Aushev, S Bahinipati, AM Bakich, Y Ban, E Banas, A Bay, U Bitenc, Bizjak, I, S Blyth, A Bondar, A Bozek, M Bracko, J Brodzicka, TE Browder, MC Chang, P Chang, KF Chen, BG Cheon, R Chistov, SK Choi, Y Choi, A Chuvikov, S Cole, M Danilov, M Dash, LY Dong, J Dragic, S Eidelman, Eiges, V, Y Enari, D Epifanov, F Fang, S Fratina, A Garmash, T Gershon, G Gokhroo, B Golob, J Haba, T Hara, NC Hastings, H Hayashii, M Hazumi, T Higuchi, L Hinz, Y Hoshi, WS Hou, YB Hsiung, T Iijima, K Inami, A Ishikawa, H Ishino, R Itoh, M Iwasaki, Y Iwasaki, JH Kang, JS Kang, P Kapusta, SU Kataoka, N Katayama, T Kawasaki, H Kichimi, HJ Kim, SK Kim, TH Kim, P Koppenburg, S Korpar, P Krizan, P Krokovny, A Kuzmin, YJ Kwon, JS Lange, G Leder, SE Lee, SH Lee, J Li, SW Lin, J MacNaughton, G Majumder, F Mandl, T Matsumoto, A Matyja, W Mitaroff, H Miyake, R Mizuk, D Mohapatra, GR Moloney, A Murakami, T Nagamine, Y Nagasaka, E Nakano, M Nakao, H Nakazawa, Z Natkaniec, O Nitoh, T Nozaki, S Ogawa, T Ohshima, T Okabe, S Okuno, SL Olsen, H Ozaki, P Pakhlov, H Palka, CW Park, H Park, M Peters, LE Piilonen, FJ Ronga, M Rozanska, Y Sakai, O Schneider, J Schumann, C Schwanda, S Semenov, R Seuster, ME Sevior, H Shibuya, B Shwartz, A Somov, N Soni, R Stamen, S Stanic, M Staric, A Sugiyama, T Sumiyoshi, S Suzuki, O Tajima, F Takasaki, K Tamai, M Tanaka, Y Teramoto, T Tomura, K Trabelsi, T Tsuboyama, T Tsukamoto, S Uehara, T Uglov, K Ueno, Y Unno, S Uno, Y Ushiroda, G Varner, KE Varvell, CH Wang, MZ Wang, Y Watanabe, BD Yabsley, Y Yamada, A Yamaguchi, Y Yamashita, M Yamauchi, HY Yang, J Ying, ZP Zhang, Zhilich, V, T Ziegler, D Zontar, D Zurcher

PHYSICAL REVIEW LETTERS 93 ( 3 ) 2004年7月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMERICAN PHYSICAL SOC

Direct CP violation in the b-->sgamma process is a sensitive probe of physics beyond the standard model. We report a measurement of the CP asymmetry in B-->X(s)gamma, where the hadronic recoil system X-s is reconstructed using a pseudoreconstruction technique. In this approach there is negligible contamination from b-->dgamma decays, which are expected to have a much larger CP asymmetry. We find A(CP)=0.002+/-0.050(stat)+/-0.030(syst) for B-->X(s)gamma events having recoil mass smaller than 2.1 GeV/c(2). The analysis is based on a data sample of 140 fb(-1) recorded at the Y(4S) resonance with the Belle detector at the KEKB e(+)e(-) storage ring.

DOI： 10.1103/PhysRevLett.93.031803

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Study of CP violating effects in time dependent B-0((B)over-bar(0))-> D-(*)-/+pi(+/-) decays 査読

TR Sarangi, K Abe, K Abe, T Abe, H Aihara, Y Asano, Aulchenko, V, T Aushev, S Bahinipati, AM Bakich, Y Ban, S Banerjee, U Bitenc, Bizjak, I, S Blyth, A Bondar, M Bracko, TE Browder, MC Chang, P Chang, KF Chen, BG Cheon, R Chistov, SK Choi, Y Choi, A Chuvikov, S Cole, M Danilov, M Dash, LY Dong, A Drutskoy, S Eidelman, Eiges, V, S Fratina, N Gabyshev, A Garmash, T Gershon, G Gokhroo, J Haba, K Hara, NC Hastings, H Hayashii, M Hazumi, T Higuchi, L Hinz, T Hokuue, Y Hoshi, WS Hou, K Inami, A Ishikawa, H Ishino, R Itoh, H Iwasaki, M Iwasaki, JH Kang, JS Kang, P Kapusta, SU Kataoka, H Kawai, T Kawasaki, H Kichimi, HJ Kim, HO Kim, SK Kim, TH Kim, K Kinoshita, S Korpar, P Krizan, P Krokovny, A Kuzmin, YJ Kwon, JS Lange, G Leder, SH Lee, T Lesiak, J Li, SW Lin, D Liventsev, J MacNaughton, F Mandl, D Marlow, T Matsumoto, A Matyja, Y Mikami, W Mitaroff, K Miyabayashi, H Miyake, H Miyata, D Mohapatra, GR Moloney, T Nagamine, Y Nagasaka, T Nakadaira, M Nakao, H Nakazawa, Z Natkaniec, S Nishida, O Nitoh, T Nozaki, S Ogawa, T Ohshima, T Okabe, S Okuno, SL Olsen, W Ostrowicz, H Ozaki, P Pakhlov, H Palka, H Park, KS Park, N Parslow, LE Piilonen, M Rozanska, H Sagawa, S Saitoh, Y Sakai, M Satapathy, O Schneider, J Schumann, C Schwanda, AJ Schwartz, S Semenov, K Senyo, ME Sevior, H Shibuya, Sidorov, V, JB Singh, N Soni, R Stamen, S Stanic, M Staric, K Sumisawa, T Sumiyoshi, S Suzuki, SK Swain, O Tajima, F Takasaki, M Tanaka, GN Taylor, T Tomura, K Trabelsi, T Tsuboyama, S Uehara, T Uglov, K Ueno, Y Unno, S Uno, G Varner, KE Varvell, CH Wang, MZ Wang, M Watanabe, BD Yabsley, Y Yamada, A Yamaguchi, Y Yamashita, J Ying, Y Yusa, J Zhang, ZP Zhang, Y Zheng, Zhilich, V, T Ziegler, D Zontar

PHYSICAL REVIEW LETTERS 93 ( 3 ) 1 - 5 2004年7月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report measurements of time dependent decay rates for B-0((B) over bar (0))-->D((*)-/+)pi(+/-) decays and extraction of CP violation parameters containing phi(3). Using fully reconstructed D((*))pi events from a 140 fb(-1) data sample collected at the Y(4S) resonance, we obtain the CP violation parameters for D(*)pi and Dpi decays, 2R(D)((*))pisin(2phi(1)+phi(3)+/-delta(D)((*))pi), where R(D)((*))pi is the ratio of the magnitudes of the doubly Cabibbo-suppressed and Cabibbo-favored amplitudes, and delta(D)((*))pi is the strong phase difference between them. Under the assumption of delta(D)((*))pi being close to either 0degrees or 180degrees, we obtain \2R(D)(*)pisin(2phi(1)+phi(3))\=0.060+/-0.040(stat)+/-0.019(syst) and \2R(Dpi)sin(2phi(1)+phi(3))\=0.061+/-0.037(stat)+/-0.018(syst).

DOI： 10.1103/PhysRevLett.93.031802

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Measurement of the B -> K*gamma branching fractions and asymmetries 査読

M Nakao, K Abe, K Abe, T Abe, Adachi, I, H Aihara, M Akatsu, Y Asano, T Aso, Aulchenko, V, T Aushev, S Bahinipati, AM Bakich, Y Ban, A Bay, U Bitenc, Bizjak, I, A Bondar, A Bozek, M Bracko, TE Browder, P Chang, Y Chao, KF Chen, BG Cheon, R Chistov, Y Choi, A Chuvikov, S Cole, M Danilov, M Dash, LY Dong, J Dragic, A Drutskoy, S Eidelman, Eiges, V, Y Enari, F Fang, S Fratina, N Gabyshev, A Garmash, T Gershon, G Gokhroo, B Golob, H Hayashii, M Hazumi, T Higuchi, L Hinz, T Hokuue, Y Hoshi, WS Hou, YB Hsiung, T Iijima, K Inami, A Ishikawa, H Ishino, R Itoh, H Iwasaki, M Iwasaki, JH Kang, JS Kang, N Katayama, H Kawai, T Kawasaki, H Kichimi, HJ Kim, JH Kim, SK Kim, TH Kim, K Kinoshita, P Koppenburg, S Korpar, P Krizan, P Krokovny, A Kuzmin, YJ Kwon, JS Lange, SH Lee, T Lesiak, J Li, A Limosani, SW Lin, J MacNaughton, G Majumder, F Mandl, T Matsumoto, Y Mikami, W Mitaroff, K Miyabayashi, H Miyake, H Miyata, D Mohapatra, GR Moloney, T Mori, T Nagamine, Y Nagasaka, E Nakano, H Nakazawa, K Neichi, S Nishida, O Nitoh, T Nozaki, S Ogawa, T Ohshima, T Okabe, S Okuno, SL Olsen, W Ostrowicz, P Pakhlov, H Palka, H Park, N Parslow, LS Peak, LE Piilonen, FJ Ronga, M Rozanska, H Sagawa, S Saitoh, Y Sakai, TR Sarangi, O Schneider, J Schumann, C Schwanda, AJ Schwartz, S Semenov, K Senyo, R Seuster, ME Sevior, B Shwartz, JB Singh, N Soni, R Stamen, S Stanic, M Staric, T Sumiyoshi, S Suzuki, O Tajima, F Takasaki, M Tanaka, GN Taylor, Y Teramoto, T Tomura, T Tsuboyama, T Tsukamoto, S Uehara, T Uglov, S Uno, Y Ushiroda, G Varner, KE Varvell, CC Wang, CH Wang, MZ Wang, M Watanabe, Y Yamada, A Yamaguchi, Y Yamashita, M Yamauchi, HY Yang, J Ying, Y Yusa, CC Zhang, J Zhang, ZP Zhang, Zhilich, V, T Ziegler, D Zontar

PHYSICAL REVIEW D 69 ( 11 ) 1 - 9 2004年6月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMERICAN PHYSICAL SOC

We report measurements of the radiative decay B-->K*gamma. The analysis is based on a data sample containing 85.0x10(6) B meson pairs collected by the Belle detector at the KEKB storage ring. We measure branching fractions of B(B-0-->K*(0)gamma)=(4.01+/-0.21+/-0.17)x10(-5) and B(B+-->K*(+)gamma)=(4.25+/-0.31+/-0.24)x10(-5), where the first and second errors are statistical and systematic, respectively. The isospin asymmetry between B-0 and B+ decay widths is measured to be Delta(0+)=+0.012+/-0.044+/-0.026, assuming an equal production rate for (BB)-B-0 $$($) over bar (0) and B+B- pairs from the Y(4S) resonance. We search for a partial rate asymmetry between CP conjugate modes, and find A(CP)(B-->K*gamma)=-0.015+/-0.044+/-0.012.

DOI： 10.1103/PhysRevD.69.112001

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The improved ladder production for the Belle Silicon Vertex Detector (SVD2.1)

T Ziegler, H Aihara, Y Asano, T Aso, A Bakich, M Barbero, T Browder, MC Chang, Y Chao, KF Chen, S Chidzik, A Chouvikov, J Dalseno, R Dowd, R Fernholz, S Fratina, M Friedl, H Fujii, Y Fujiyama, J Haba, K Hara, T Hara, B Harrop, T Haruyama, K Hayashi, M Hazumi, D Heffernan, T Higuchi, A Igarashi, Y Igarashi, H Ikeda, H Ishino, S Iwaida, T Kameshima, R Kapusta, K Kasami, T Kawasaki, A Kibayashi, S Koike, S Korpar, P Krizan, H Kurashiro, A Kusaka, T Lesiak, D Marlow, H Matsumoto, Y Mikami, H Miyake, GR Moloney, Z Natkaniec, S Nozaki, R Ohkubo, S Okuno, S Ono, Y Onuki, W Ostrowicz, H Ozaki, L Peak, M Pernicka, M Rosen, M Rozanska, N Sato, S Schmid, J Schumann, T Shibata, R Stamen, S Stanic, H Steininger, K Sumisawa, J Suzuki, H Tajima, O Tajima, K Takahashi, F Takasaki, N Tamura, M Tanaka, GN Taylor, K Trabelsi, T Tsuboyama, K Uchida, K Ueno, K Ueno, Y Ushiroda, S Vahsen, G Varner, K Varvell, YS Velikzhanin, CC Wang, MZ Wang, M Watanabe, Y Watanabe, H Yamamoto, Y Yamashita, M Yamauchi, R Yang, Y Yasu, D Zontar

2004 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOLS 1-7 899 - 903 2004年

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記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）出版者・発行元：IEEE

In autumn 2003 data taking with the new Silicon Vertex Detector SVD2 in Belle started at the KEK-B energy-asymmetric e(+)e(-) collider in Tsukuba, japan. The detector works as expected, however, it was decided to produce replacement ladders for the inner two layers of the vertex detector which are most exposed to the high radiation doses from the beam. The new ladders are not merely reproducing the existing design but include some significant improvements. The readout electronics is designed in a FR4 hybrid board with a new heat transfer scheme in order to dissipate the heat produced in the VA1TA front-end readout chips. The flex circuits that connect the double-sided silicon sensors (DSSD's) with the hybrid boards were redesigned using a 2-layer technique which improved the production quality and lowered their costs significantly. Production and testing will he finished by the end of 2004 and will provide Belle with spare ladders as well as new expertise for possible future projects like e.g. developments for a high luminosity B-factory.

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Search for dark matter WIMPs using upward through-going muons in Super-Kamiokande 査読

Desai, S., Ashie, Y., Fukuda, S., Fukuda, Y., Ishihara, K., Itow, Y., Koshio, Y., Minamino, A., Miura, M., Moriyama, S., Nakahata, M., Namba, T., Nambu, R., Obayashi, Y., Sakurai, N., Shiozawa, M., Suzuki, Y., Takeuchi, H., Takeuchi, Y., Yamada, S., Ishitsuka, M., Kajita, T., Kaneyuki, K., Nakayama, S., Okada, A., Ooyabu, T., Saji, C., Earl, M., Kearns, E., Stone, J.L., Sulak, L.R., Walter, C.W., Wang, W., Goldhaber, M., Barszczak, T., Casper, D., Cravens, J.P., Gajewski, W., Kropp, W.R., Mine, S., Liu, D.W., Smy, M.B., Sobel, H.W., Sterner, C.W., Vagins, M.R., Ganezer, K.S., Hill, J., Keig, W.E., Kim, J.Y., Lim, I.T., Ellsworth, R.W., Tasaka, S., Guillian, G., Kibayashi, A., Learned, J.G., Matsuno, S., Takemori, D., Messier, M.D., Hayato, Y., Ichikawa, A.K., Ishida, T., Ishii, T., Iwashita, T., Kameda, J., Kobayashi, T., Maruyama, T., Nakamura, K., Nitta, K., Oyama, Y., Sakuda, M., Totsuka, Y., Suzuki, A.T., Hasegawa, M., Hayashi, K., Inagaki, T., Kato, I., Maesaka, H., Morita, T., Nakaya, T., Nishikawa, K., Sasaki, T., Ueda, S., Yamamoto, S., Haines, T.J., Dazeley, S., Hatakeyama, S., Svoboda, R., Blaufuss, E., Goodman, J.A., Sullivan, G.W., Turcan, D., Scholberg, K., Habig, Alec, Jung, C.K., Kato, T., Kobayashi, K., Malek, M., Mauger, C., McGrew, C., Sarrat, A., Sharkey, E., Yanagisawa, C., Toshito, T., Mitsuda, C., Miyano, K., Shibata, T., Kajiyama, Y., Nagashima, Y., Takita, M., Yoshida, M., Kim, H.I., Kim, S.B., Yoo, J., Okazawa, H., Ishizuka, T., Choi, Y., Seo, H.K., Gando, Y., Hasegawa, T., Inoue, K., Shirai, J., Suzuki, A., Koshiba, M., Hashimoto, T., Nakajima, Y., Nishijima, K., Harada, T., Ishino, H., Morii, M., Nishimura, R., Watanabe, Y., Kielczewska, D., Zalipska, J., Gran, R., Shiraishi, K.K., Washburn, K., Wilkes, R.J.

Phys.Rev.D 70 ( 083523 ) 083523 - 083523 2004年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevD.70.083523

Web of Science

arXiv

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Limits on the neutrino magnetic moment using 1496 days of Super-Kamiokande-I solar neutrino data 査読

Liu, D.W., Ashie, Y., Fukuda, S., Fukuda, Y., Ishihara, K., Itow, Y., Koshio, Y., Minamino, A., Miura, M., Moriyama, S., Nakahata, M., Namba, T., Nambu, R., Obayashi, Y., Sakurai, N., Shiozawa, M., Suzuki, Y., Takeuchi, H., Takeuchi, Y., Yamada, S., Ishitsuka, M., Kajita, T., Kaneyuki, K., Nakayama, S., Okada, A., Ooyabu, T., Saji, C., Desai, S., Earl, M., Kearns, E., Messier, M.D., Stone, J.L., Sulak, L.R., Walter, C.W., Wang, W., Goldhaber, M., Barszczak, T., Casper, D., Cravens, J.P., Gajewski, W., Kropp, W.R., Mine, S., Smy, M.B., Sobel, H.W., Sterner, C.W., Vagins, M.R., Ganezer, K.S., Hill, J., Keig, W.E., Kim, J.Y., Lim, I.T., Ellsworth, R.W., Tasaka, S., Kibayashi, A., Learned, J.G., Matsuno, S., Takemori, D., Hayato, Y., Ichikawa, A.K., Ishida, T., Ishii, T., Iwashita, T., Kameda, J., Kobayashi, T., Maruyama, T., Nakamura, K., Nitta, K., Oyama, Y., Sakuda, M., Totsuka, Y., Suzuki, A.T., Hasegawa, M., Hayashi, K., Inagaki, T., Kato, I., Maesaka, H., Morita, T., Nakaya, T., Nishikawa, K., Sasaki, T., Ueda, S., Yamamoto, S., Haines, T.J., Dazeley, S., Hatakeyama, S., Svoboda, R., Blaufuss, E., Goodman, J.A., Guillian, G., Sullivan, G.W., Turcan, D., Scholberg, K., Habig, Alec, Ackermann, M., Jung, C.K., Kato, T., Kobayashi, K., Martens, K., Malek, M., Mauger, C., McGrew, C., Sharkey, E., Viren, B., Yanagisawa, C., Toshito, T., Mitsuda, C., Miyano, K., Shibata, T., Kajiyama, Y., Nagashima, Y., Takita, M., Yoshida, M., Kim, H.I., Kim, S.B., Yoo, J., Okazawa, H., Ishizuka, T., Choi, Y., Seo, H.K., Gando, Y., Hasegawa, T., Inoue, K., Shirai, J., Suzuki, A., Koshiba, M., Hashimoto, T., Nakajima, Y., Nishijima, K., Ishino, H., Morii, M., Nishimura, R., Watanabe, Y., Kielczewska, D., Zalipska, J., Gran, R., Shiraishi, K.K., Washburn, K., Wilkes, R.J.

Phys.Rev.Lett. 93 ( 021802 ) 021802 - 021802 2004年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevLett.93.021802

Web of Science

arXiv

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Precise measurement of the solar neutrino day / night and seasonal variation in Super-Kamiokande-1 査読

Smy, M.B., Ashie, Y., Fukuda, S., Fukuda, Y., Ishihara, K., Itow, Y., Koshio, Y., Minamino, A., Miura, M., Moriyama, S., Nakahata, M., Namba, T., Nambu, R., Obayashi, Y., Sakurai, N., Shiozawa, M., Suzuki, Y., Takeuchi, H., Takeuchi, Y., Yamada, S., Ishitsuka, M., Kajita, T., Kaneyuki, K., Nakayama, S., Okada, A., Ooyabu, T., Saji, C., Desai, S., Earl, M., Kearns, E., Messier, M.D., Stone, J.L., Sulak, L.R., Walter, C.W., Wang, W., Goldhaber, M., Barszczak, T., Casper, D., Gajewski, W., Kropp, W.R., Mine, S., Liu, D.W., Sobel, H.W., Vagins, M.R., Gago, A., Ganezer, K.S., Hill, J., Keig, W.E., Kim, J.Y., Lim, I.T., Ellsworth, R.W., Tasaka, S., Kibayashi, A., Learned, J.G., Matsuno, S., Takemori, D., Hayato, Y., Ichikawa, A.K., Ishii, T., Kameda, J., Kobayashi, T., Maruyama, T., Nakamura, K., Nitta, K., Oyama, Y., Sakuda, M., Totsuka, Y., Yoshida, M., Iwashita, T., Suzuki, A.T., Inagaki, T., Kato, I., Nakaya, T., Nishikawa, K., Haines, T.J., Dazeley, S., Hatakeyama, S., Svoboda, R., Blaufuss, E., Goodman, J.A., Guillian, G., Sullivan, G.W., Turcan, D., Scholberg, K., Habig, Alec, Ackermann, M., Jung, C.K., Kato, T., Kobayashi, K., Martens, K., Malek, M., Mauger, C., McGrew, C., Sharkey, E., Viren, B., Yanagisawa, C., Toshito, T., Mitsuda, C., Miyano, K., Shibata, T., Kajiyama, Y., Nagashima, Y., Takita, M., Kim, H.I., Kim, S.B., Yoo, J., Okazawa, H., Ishizuka, T., Choi, Y., Seo, H.K., Etoh, M., Gando, Y., Hasegawa, T., Inoue, K., Shirai, J., Suzuki, A., Koshiba, M., Hatakeyama, Y., Ichikawa, Y., Koike, M., Nishijima, K., Ishino, H., Morii, M., Nishimura, R., Watanabe, Y., Kielczewska, D., Zalipska, J., Berns, H.G., Boyd, S.C., Stachyra, A.L., Wilkes, R.J.

Phys.Rev.D 69 ( 011104(R) ) 011104 - 011104 2004年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevD.69.011104

Web of Science

arXiv

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Evidence for an oscillatory signature in atmospheric neutrino oscillation 査読

Ashie, Y., Hosaka, J., Ishihara, K., Itow, Y., Kameda, J., Koshio, Y., Minamino, A., Mitsuda, C., Miura, M., Moriyama, S., Nakahata, M., Namba, T., Nambu, R., Obayashi, Y., Shiozawa, M., Suzuki, Y., Takeuchi, Y., Taki, K., Yamada, S., Ishitsuka, M., Kajita, T., Kaneyuki, K., Nakayama, S., Okada, A., Okumura, K., Ooyabu, T., Saji, C., Takenaga, Y., Desai, S., Kearns, E., Likhoded, S., Stone, J.L., Sulak, L.R., Walter, C.W., Wang, W., Goldhaber, M., Casper, D., Cravens, J.P., Gajewski, W., Kropp, W.R., Liu, D.W., Mine, S., Smy, M.B., Sobel, H.W., Sterner, C.W., Vagins, M.R., Ganezer, K.S., Hill, J., Keig, W.E., Jang, J.S., Kim, J.Y., Lim, I.T., Ellsworth, R.W., Tasaka, S., Guillian, G., Kibayashi, A., Learned, J.G., Matsuno, S., Takemori, D., Messier, M.D., Hayato, Y., Ichikawa, A.K., Ishida, T., Ishii, T., Iwashita, T., Kobayashi, T., Maruyama, T., Nakamura, K., Nitta, K., Oyama, Y., Sakuda, M., Totsuka, Y., Suzuki, A.T., Hasegawa, M., Hayashi, K., Inagaki, T., Kato, I., Maesaka, H., Morita, T., Nakaya, T., Nishikawa, K., Sasaki, T., Ueda, S., Yamamoto, S., Haines, T.J., Dazeley, S., Hatakeyama, S., Svoboda, R., Blaufuss, E., Goodman, J.A., Sullivan, G.W., Turcan, D., Scholberg, K., Habig, Alec, Fukuda, Y., Jung, C.K., Kato, T., Kobayashi, K., Malek, M., Mauger, C., McGrew, C., Sarrat, A., Sharkey, E., Yanagisawa, C., Toshito, T., Miyano, K., Tamura, N., Ishii, J., Kuno, Y., Nagashima, Y., Takita, M., Yoshida, M., Kim, S.B., Yoo, J., Okazawa, H., Ishizuka, T., Choi, Y., Seo, H.K., Gando, Y., Hasegawa, T., Inoue, K., Shirai, J., Suzuki, A., Koshiba, M., Nakajima, Y., Nishijima, K., Harada, T., Ishino, H., Nishimura, R., Watanabe, Y., Kielczewska, D., Zalipska, J., Berns, H.G., Gran, R., Shiraishi, K.K., Stachyra, A., Washburn, K., Wilkes, R.J.

Phys.Rev.Lett. 93 ( 101801 ) 101801 - 101801 2004年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevLett.93.101801

Web of Science

arXiv

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Measurement of time-dependent CP-violating asymmetries in B(0)->phi K(S)(0), K(+)K(-)K(S)(0), and eta(')K(S)(0) decays 査読

K Abe, K Abe, T Abe, Adachi, I, H Aihara, K Akai, M Akatsu, Y Asano, T Aso, T Aushev, S Bahinipati, AM Bakich, Y Ban, S Banerjee, Bedny, I, Bizjak, I, A Bondar, A Bozek, M Bracko, J Brodzicka, TE Browder, MC Chang, P Chang, Y Chao, KF Chen, BG Cheon, R Chistov, SK Choi, Y Choi, YK Choi, A Chuvikov, M Danilov, LY Dong, S Eidelman, Eiges, V, Y Enari, J Flanagan, C Fukunaga, K Furukawa, N Gabyshev, A Garmash, T Gershon, B Golob, R Guo, J Haba, C Hagner, K Hara, T Hara, NC Hastings, H Hayashii, M Hazumi, Higuchi, I, T Higuchi, T Hokuue, Y Hoshi, WS Hou, YB Hsiung, HC Huang, Y Igarashi, T Iijima, H Ikeda, K Inami, A Ishikawa, H Ishino, R Itoh, H Iwasaki, M Iwasaki, Y Iwasaki, T Kamitani, JH Kang, JS Kang, P Kapusta, SU Kataoka, N Katayama, H Kawai, H Kawai, T Kawasaki, H Kichimi, M Kikuchi, E Kikutani, HJ Kim, H Kim, JH Kim, SK Kim, K Kinoshita, H Koiso, P Koppenburg, S Korpar, P Krizan, P Krokovny, S Kumar, YJ Kwon, JS Lange, G Leder, SH Lee, T Lesiak, J Li, A Limosani, SW Lin, D Liventsev, J MacNaughton, F Mandl, D Marlow, M Masuzawa, T Matsumoto, A Matyja, S Michizono, T Mimashi, W Mitaroff, K Miyabayashi, H Miyake, H Miyata, D Mohapatra, T Mori, A Murakami, T Nagamine, Y Nagasaka, T Nakadaira, TT Nakamura, E Nakano, M Nakao, Z Natkaniec, S Nishida, O Nitoh, T Nozaki, S Ogawa, Y Ogawa, K Ohmi, Y Ohnishi, T Ohshima, N Ohuchi, K Oide, T Okabe, S Okuno, SL Olsen, Y Onuki, W Ostrowicz, H Ozaki, P Pakhlov, H Palka, CW Park, H Park, M Peters, LE Piilonen, N Root, M Rozanska, H Sagawa, S Saitoh, Y Sakai, M Satapathy, A Satpathy, O Schneider, J Schumann, C Schwanda, AJ Schwartz, S Semenov, K Senyo, ME Sevior, T Shibata, H Shibuya, T Shidara, B Shwartz, Sidorov, V, JB Singh, N Soni, S Stanic, R Sugahara, A Sugi, T Sugimura, A Sugiyama, K Sumisawa, T Sumiyoshi, K Suzuki, S Suzuki, SY Suzuki, F Takasaki, N Tamura, J Tanaka, M Tanaka, M Tawada, Y Teramoto, T Tomura, K Trabelsi, T Tsuboyama, T Tsukamoto, S Uehara, K Ueno, Y Unno, S Uno, Y Ushiroda, SE Vahsen, G Varner, KE Varvell, CC Wang, CH Wang, JG Wang, MZ Wang, Y Watanabe, E Won, BD Yabsley, Y Yamada, A Yamaguchi, H Yamamoto, N Yamamoto, Y Yamashita, M Yamauchi, H Yanai, H Yang, J Ying, M Yokoyama, M Yoshida, Y Yuan, Y Yusa, CC Zhang, J Zhang, ZP Zhang, Y Zheng, Zhilich, V, D Zontar, D Zurcher

PHYSICAL REVIEW LETTERS 91 ( 26 ) 1 - 6 2003年12月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We present an improved measurement of CP-violation parameters in B(0)-->phiK(S)(0), K(+)K(-)K(S)(0), and eta(')K(S)(0) decays based on a 140 fb(-1) data sample collected at the Y(4S) resonance with the Belle detector at the KEKB energy-asymmetric e(+)e(-) collider. One neutral B meson is fully reconstructed in one of the specified decay channels, and the flavor of the accompanying B meson is identified from its decay products. CP-violation parameters for each of the three modes are obtained from the asymmetries in the distributions of the proper-time intervals between the two B decays. We find that the observed CP asymmetry in the B-->phiK(S)(0) decay differs from the standard model (SM) expectation by 3.5 standard deviations, while the other cases are consistent with the SM.

DOI： 10.1103/PhysRevLett.91.261602

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Search for periodic modulations of the solar neutrino flux in Super-Kamiokande-I 査読

J Yoo, Y Ashie, S Fukuda, Y Fukuda, K Ishihara, Y Itow, Y Koshio, A Minamino, M Miura, S Moriyama, M Nakahata, T Namba, R Nambu, Y Obayashi, N Sakurai, M Shiozawa, Y Suzuki, H Takeuchi, Y Takeuchi, S Yamada, M Ishitsuka, T Kajita, K Kaneyuki, S Nakayama, A Okada, T Ooyabu, C Saji, S Desai, M Earl, E Kearns, MD Messier, JL Stone, LR Sulak, CW Walter, M Goldhaber, T Barszczak, D Casper, W Gajewski, WR Kropp, S Mine, DW Liu, MB Smy, HW Sobel, MR Vagins, A Gago, KS Ganezer, J Hill, WE Keig, JY Kim, IT Lim, RW Ellsworth, S Tasaka, A Kibayashi, JG Learned, S Matsuno, D Takemori, Y Hayato, AK Ichikawa, T Ishii, J Kameda, T Kobayashi, T Maruyama, K Nakamura, K Nitta, Y Oyama, M Sakuda, Y Totsuka, M Yoshida, M Kohama, T Iwashita, AT Suzuki, T Inagaki, Kato, I, T Nakaya, K Nishikawa, TJ Haines, S Dazeley, S Hatakeyama, R Svoboda, E Blaufuss, ML Chen, JA Goodman, G Guillian, GW Sullivan, D Turcan, K Scholberg, A Habig, M Ackermann, CK Jung, T Kato, K Kobayashi, K Martens, M Malek, C Mauger, C McGrew, E Sharkey, B Viren, C Yanagisawa, T Toshito, C Mitsuda, K Miyano, T Shibata, Y Kajiyama, Y Nagashima, M Takita, HI Kim, SB Kim, H Okazawa, T Ishizuka, Y Choi, HK Seo, M Etoh, Y Gando, T Hasegawa, K Inoue, J Shirai, A Suzuki, M Koshiba, Y Hatakeyama, Y Ichikawa, M Koike, K Nishijima, H Ishino, M Morii, R Nishimura, Y Watanabe, D Kielczewska, HG Berns, SC Boyd, AL Stachyra, RJ Wilkes

PHYSICAL REVIEW D 68 ( 9 ) 092002 - 092002 2003年11月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

A search for periodic modulations of the solar neutrino flux was performed using the Super-Kamiokande-I data taken from 31 May 1996 to 15 July 2001. The detector's capability of measuring the exact time of events, combined with a relatively high yield of solar neutrino events, allows a search for short-time variations in the observed flux. We employed the Lomb test to look for periodic modulations of the observed solar neutrino flux. The obtained periodogram is consistent with statistical fluctuation and no significant periodicity was found.

DOI： 10.1103/PhysRevD.68.092002

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arXiv

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Measurement of branching fractions and polarization in B ->phi K-(*) decays 査読

KF Chen, A Bozek, K Abe, K Abe, T Abe, Adachi, I, H Aihara, M Akatsu, Y Asano, T Aso, AM Bakich, Y Ban, E Banas, A Bay, PK Behera, Bizjak, I, A Bondar, M Bracko, J Brodzicka, TE Browder, BCK Casey, MC Chang, P Chang, Y Chao, BG Cheon, R Chistov, SK Choi, Y Choi, YK Choi, M Danilov, M Dash, LY Dong, A Drutskoy, S Eidelman, Eiges, V, Y Enari, C Fukunaga, N Gabyshev, A Garmash, T Gershon, B Golob, R Guo, J Haba, C Hagner, F Handa, H Hayashii, M Hazumi, T Higuchi, L Hinz, T Hokuue, Y Hoshi, WS Hou, YB Hsiung, HC Huang, Y Igarashi, T Iijima, K Inami, A Ishikawa, H Ishino, R Itoh, H Iwasaki, Y Iwasaki, HK Jang, M Jones, JH Kang, JS Kang, N Katayama, H Kawai, H Kawai, T Kawasaki, H Kichimi, DW Kim, H Kim, JH Kim, SK Kim, K Kinoshita, P Koppenburg, S Korpar, P Krokovny, A Kuzmin, YJ Kwon, JS Lange, SH Lee, T Lesiak, J Li, A Limosani, SW Lin, J MacNaughton, F Mandl, D Marlow, H Matsumoto, T Matsumoto, A Matyja, W Mitaroff, H Miyake, H Miyata, D Mohapatra, T Mori, T Nagamine, T Nakadaira, E Nakano, M Nakao, JW Nam, Z Natkaniec, S Nishida, O Nitoh, T Nozaki, S Ogawa, T Ohshima, T Okabe, S Okuno, SL Olsen, W Ostrowicz, H Ozaki, H Palka, CW Park, H Park, KS Park, N Parslow, LS Peak, M Peters, LE Piilonen, N Root, M Rozanska, H Sagawa, S Saitoh, Y Sakai, TR Sarangi, M Satapathy, A Satpathy, O Schneider, J Schumann, AJ Schwartz, S Semenov, K Senyo, ME Sevior, Sidorov, V, JB Singh, S Stanic, M Staric, A Sugi, K Sumisawa, T Sumiyoshi, S Suzuki, T Takahashi, F Takasaki, K Tamai, N Tamura, M Tanaka, Y Teramoto, T Tomura, T Tsuboyama, T Tsukamoto, K Ueno, Y Unno, S Uno, Y Ushiroda, G Varner, KE Varvell, CC Wang, CH Wang, JG Wang, MZ Wang, M Watanabe, Y Watanabe, E Won, BD Yabsley, Y Yamada, A Yamaguchi, Y Yamashita, M Yamauchi, H Yanai, P Yeh, M Yokoyama, Y Yusa, CC Zhang, J Zhang, ZP Zhang, Y Zheng, Zhilich, V, D Zontar

PHYSICAL REVIEW LETTERS 91 ( 20 ) 1 - 6 2003年11月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We present the first measurement of decay amplitudes in B-->phiK(*) and measurements of branching fractions in B-->phiK((*)) decays based on 78.1 fb(-1) of data recorded at the Y(4S) resonance with the Belle detector at the KEKB e(+)e(-) storage ring. The decay amplitudes for the different phiK(*0) helicity states are measured from the angular distributions of final state particles in the transversity basis. The longitudinal and transverse complex amplitudes are \A(0)\(2)=0.43+/-0.09+/-0.04, \A(perpendicular to)\(2)=0.41+/-0.10+/-0.04, arg(A(parallel to))=-2.57+/-0.39+/-0.09, and arg(A(perpendicular to))=0.48+/-0.32+/-0.06. The direct CP-violating asymmetries are found to be consistent with zero.

DOI： 10.1103/PhysRevLett.91.201801

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Evidence for CP-violating asymmetries in B-0 ->pi(+)pi(-) decays and constraints on the CKM angle phi(2) 査読

K Abe, K Abe, N Abe, T Abe, Adachi, I, H Aihara, K Akai, M Akatsu, M Akemoto, Y Asano, T Aushev, AM Bakich, Y Ban, E Banas, A Bay, Bedny, I, PK Behera, Bizjak, I, A Bondar, A Bozek, M Bracko, J Brodzicka, TE Browder, BCK Casey, P Chang, KF Chen, BG Cheon, R Chistov, SK Choi, Y Choi, YK Choi, M Danilov, J Dragic, A Drutskoy, S Eidelman, Eiges, V, CW Everton, J Flanagan, C Fukunaga, K Furukawa, N Gabyshev, A Garmash, T Gershon, B Golob, R Guo, C Hagner, K Hara, NC Hastings, K Hasuko, H Hayashii, M Hazumi, T Higuchi, L Hinz, T Hojo, T Hokuue, Y Hoshi, WS Hou, YB Hsiung, HC Huang, T Igaki, Y Igarashi, T Iijima, H Ikeda, K Inami, A Ishikawa, H Ishino, R Itoh, H Iwasaki, Y Iwasaki, HK Jang, JS Kang, P Kapusta, SU Kataoka, N Katayama, G Katano, H Kawai, N Kawamura, T Kawasaki, H Kichimi, M Kikuchi, E Kikutani, DW Kim, HJ Kim, HO Kim, H Kim, JH Kim, SK Kim, S Kobayashi, S Korpar, P Krizan, P Krokovny, T Kubo, R Kulasiri, S Kumar, A Kuzmin, YJ Kwon, JS Lange, G Leder, SH Lee, J Li, SW Lin, J MacNaughton, F Mandl, D Marlow, S Matsumoto, T Matsumoto, S Michizono, T Mimashi, W Mitaroff, K Miyabayashi, H Miyake, H Miyata, GR Moloney, T Mori, A Murakami, Y Nagasaka, T Nakadaira, TT Nakamura, E Nakano, M Nakao, H Nakayama, JW Nam, K Neichi, S Nishida, O Nitoh, S Noguchi, T Nozaki, S Ogawa, Y Ogawa, K Ohmi, Y Ohnishi, T Ohshima, N Ohuchi, T Okabe, S Okuno, SL Olsen, Y Onuki, W Ostrowicz, H Ozaki, H Palka, CW Park, H Park, KS Park, LS Peak, JP Perroud, M Peters, LE Piilonen, M Rozanska, K Rybicki, H Sagawa, S Saitoh, Y Sakai, TR Sarangi, M Satapathy, A Satpathy, O Schneider, S Schrenk, J Schumann, C Schwanda, S Semenov, K Senyo, ME Sevior, H Shibuya, T Shidara, B Shwartz, Sidorov, V, JB Singh, S Stanic, M Staric, R Sugahara, A Sugiyama, K Sumisawa, T Sumiyoshi, K Suzuki, S Suzuki, T Takahashi, F Takasaki, K Tamai, N Tamura, J Tanaka, M Tanaka, M Tawada, GN Taylor, Y Teramoto, S Tokuda, T Tomura, K Trabelsi, T Tsuboyama, T Tsukamoto, S Uehara, Y Unno, S Uno, N Uozaki, SE Vahsen, G Varner, KE Varvell, CC Wang, CH Wang, JG Wang, MZ Wang, Y Watanabe, E Won, BD Yabsley, Y Yamada, A Yamaguchi, H Yamamoto, Y Yamashita, Y Yamashita, M Yamauchi, M Yokoyama, M Yoshida, CC Zhang, ZP Zhang, Zhilich, V, D Zontar

PHYSICAL REVIEW D 68 ( 1 ) 1 - 15 2003年7月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We present an improved measurement of CP-violating asymmetries in B-0-->pi(+)pi(-) decays based on a 78 fb(-1) data sample collected at the Y(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We reconstruct one neutral B meson as a B-0-->pi(+)pi(-) CP eigenstate and identify the flavor of the accompanying B meson from inclusive properties of its decay products. We apply an unbinned maximum likelihood fit to the distribution of the time intervals between the two B meson decay points. The fit yields the CP-violating asymmetry amplitudes A(pipi) = +0.77 +/-0.27(stat) +/-0.08(syst) and S-pipi = -1.23+/-0.41(stat) (+0.08)(-0.07)(syst), where the statistical uncertainties are determined from the Monte Carlo pseudoexperiments. We obtain confidence intervals for CP-violating asymmetry parameters A(pipi) and S-pipi based on a frequentist approach. We rule out the CP-conserving case, A(pipi) = S-pipi = 0, at the 99.93% confidence level. We discuss how these results constrain the value of the Cabibbo-Kobayashi-Maskawa (CKM) angle phi(2).

DOI： 10.1103/PhysRevD.68.012001

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Measurement of the B-0-(B)over-bar(0) mixing rate with B-0((B)over-bar(0))-> D*(-/+)pi(+/-) partial reconstruction 査読

Y Zheng, TE Browder, K Abe, K Abe, R Abe, Adachi, I, H Aihara, M Akatsu, Y Asano, T Aso, T Aushev, AM Bakich, Y Ban, A Bay, PK Behera, A Bondar, A Bozek, M Bracko, BCK Casey, Y Chao, KF Chen, BG Cheon, R Chistov, Y Choi, YK Choi, M Danilov, S Eidelman, Eiges, V, Y Enari, C Fukunaga, N Gabyshev, A Garmash, T Gershon, B Golob, C Hagner, F Handa, T Hara, NC Hastings, K Hasuko, M Hazumi, EM Heenan, Higuchi, I, L Hinz, T Hokuue, Y Hoshi, WS Hou, HC Huang, Y Igarashi, T Iijima, K Inami, H Ishino, H Iwasaki, M Iwasaki, HK Jang, JH Kang, JS Kang, SU Kataoka, N Katayama, H Kawai, Y Kawakami, N Kawamura, T Kawasaki, H Kichimi, DW Kim, HJ Kim, HO Kim, H Kim, JH Kim, SK Kim, K Kinoshita, S Kobayashi, S Korpar, P Krokovny, A Kuzmin, YJ Kwon, G Leder, SH Lee, J Li, D Liventsev, RS Lu, J MacNaughton, G Majumder, S Matsumoto, T Matsumoto, W Mitaroff, Y Miyabayashi, H Miyake, H Miyata, T Nagamine, Y Nagasaka, T Nakadaira, E Nakano, M Nakao, H Nakazawa, JW Nam, Z Natkaniec, S Nishida, O Nitoh, T Nozaki, S Ogawa, T Ohshima, T Okabe, S Okuno, SL Olsen, Y Onuki, W Ostrowicz, H Ozaki, CW Park, H Park, KS Park, JP Perroud, LE Piilonen, FJ Ronga, K Rybicki, H Sagawa, Y Sakai, TR Sarangi, M Satapathy, A Satpathy, O Schneider, S Schrenk, C Schwanda, S Semenov, R Seuster, ME Sevior, H Shibuya, Sidorov, V, JB Singh, N Soni, S Stanic, M Staric, A Sugi, K Sumisawa, T Sumiyoshi, S Suzuki, SY Suzuki, T Takahashi, F Takasaki, K Tamai, N Tamura, J Tanaka, M Tanaka, GN Taylor, Y Teramoto, S Tokuda, T Tomura, T Tsuboyama, T Tsukamoto, S Uehara, K Ueno, S Uno, G Varner, KE Varvell, CC Wang, CH Wang, JG Wang, Y Watanabe, E Won, BD Yabsley, Y Yamada, A Yamaguchi, Y Yamashita, M Yamauchi, H Yanai, M Yokoyama, Y Yuan, CC Zhang, ZP Zhang, Zhilich, V, D Zontar

PHYSICAL REVIEW D 67 ( 9 ) 1 - 14 2003年5月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMERICAN PHYSICAL SOC

We report a measurement of the B-0-(B) over bar (0) mixing parameter Deltam(d) based on a 29.1 fb(-1) sample of Y(4S) resonance decays collected by the Belle detector at the KEKB asymmetric e(+)e(-) collider. We use events with a partially reconstructed B-0((B) over bar (0)) --> D*(-/+)pi(+/-) candidate and where the flavor of the accompanying B meson is identified by the charge of the lepton from a B-0((B) over bar (0)) --> X(-/+)l(+/-)nu decay. The proper-time difference between the two B mesons is determined from the distance between the two decay vertices. From a simultaneous fit to the proper-time distributions for the same-flavor (B-0((B) over bar (0)), l(+/-)) and opposite-flavor (B-0((B) over bar (0)), l(-/+)) event samples, we measure the mass difference between the two mass eigenstates of the neutral B meson to be Deltam(d)=(0.509 +/- 0.017 (stat) +/- 0.020 (syst)) ps(-1).

DOI： 10.1103/PhysRevD.67.092004

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Studies of the decay B-+/--> DCPK +/- 査読

K Abe, K Abe, N Abe, R Abe, T Abe, BS Ahn, H Aihara, M Akatsu, Y Asano, T Aso, Aulchenko, V, T Aushev, AM Bakich, Y Ban, PK Behera, Bizjak, I, A Bondar, A Bozek, M Bracko, TE Browder, BCK Casey, MC Chang, P Chang, Y Chao, BG Cheon, R Chistov, Y Choi, YK Choi, M Danilov, LY Dong, A Drutskoy, S Eidelman, Eiges, V, Y Enari, F Fang, H Fujii, C Fukunaga, N Gabyshev, A Garmash, T Gershon, B Golob, A Gordon, R Guo, J Haba, T Hara, Y Harada, H Hayashii, M Hazumi, EM Heenan, Higuchi, I, T Higuchi, L Hinz, T Hokuue, Y Hoshi, Hou, SR, WS Hou, SC Hsu, HC Huang, T Igaki, Y Igarashi, T Iijima, K Inami, A Ishikawa, H Ishino, R Itoh, H Iwasaki, Y Iwasaki, HK Jang, JH Kang, JS Kang, N Katayama, Y Kawakami, N Kawamura, T Kawasaki, H Kichimi, DW Kim, H Kim, HJ Kim, HO Kim, H Kim, SK Kim, TH Kim, K Kinoshita, S Korpar, P Krizan, P Krokovny, R Kulasiri, S Kumar, A Kuzmin, YJ Kwon, JS Lange, G Leder, SH Lee, J Li, A Limosani, D Liventsev, RS Lu, J MacNaughton, G Majumder, F Mandl, D Marlow, T Matsuishi, S Matsumoto, T Matsumoto, W Mitaroff, K Miyabayashi, Y Miyabayashi, H Miyake, H Miyata, GR Moloney, T Mori, A Murakami, T Nagamine, Y Nagasaka, T Nakadaira, E Nakano, M Nakao, JW Nam, Z Natkaniec, K Neichi, S Nishida, O Nitoh, S Noguchi, T Nozaki, S Ogawa, T Ohshima, T Okabe, S Okuno, SL Olsen, Y Onuki, W Ostrowicz, H Ozaki, P Pakhlov, H Palka, CW Park, H Park, LS Peak, JP Perroud, M Peters, LE Piilonen, JL Rodriguez, FJ Ronga, N Root, M Rozanska, K Rybicki, H Sagawa, S Saitoh, Y Sakai, M Satapathy, A Satpathy, O Schneider, S Schrenk, C Schwanda, S Semenov, K Senyo, R Seuster, ME Sevior, H Shibuya, B Shwartz, Sidorov, V, JB Singh, S Stanic, M Staric, A Sugi, A Sugiyama, K Sumisawa, T Sumiyoshi, K Suzuki, S Suzuki, SY Suzuki, SK Swain, T Takahashi, F Takasaki, K Tamai, N Tamura, J Tanaka, M Tanaka, GN Taylor, Y Teramoto, S Tokuda, SN Tovey, K Trabelsi, T Tsuboyama, T Tsukamoto, S Uehara, K Ueno, Y Unno, S Uno, Y Ushiroda, G Varner, KE Varvell, CC Wang, CH Wang, JG Wang, MZ Wang, Y Watanabe, E Won, BD Yabsley, Y Yamada, A Yamaguchi, Y Yamashita, M Yamauchi, H Yanai, P Yeh, Y Yuan, Y Yusa, J Zhang, ZP Zhang, Y Zheng, Zhilich, V, D Zontar

PHYSICAL REVIEW LETTERS 90 ( 13 ) 1 - 5 2003年4月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report studies of the Cabibbo-suppressed decay B+/- --> DCPK+/-, where D-CP denotes CP eigenstates of the D-0 - (D) over bar (0) system. The analysis is based on a 29.1 fb(-1) sample collected at the Y(4S) resonance with the Belle detector at the KEKB asymmetric e(+)e(-) storage ring. We measure ratios of branching fractions, relative to Cabibbo-favored B+/--->D(CP)pi+/-, of B>(B- --> D1K-)/B(B- --> D(1)pi(-)) = 0.125 +/-0.036 +/- 0.010 and B(B- --> D2K-)/B(B- --> D(2)pi(-)) = 0.119 +/- 0.028 +/- 0.006; the index 1 (2) denotes the CP = +1 (-1) eigenstate. We also extract the partial rate asymmetries for B+/- --> DCPK+/-, finding A(1) = 0.29 +/- 0.26 +/- 0.05 and A(2) = -0.22 +/- 0.24 +/- 0.04.

DOI： 10.1103/PhysRevLett.90.131803

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The Super-Kamiokande detector 査読

S Fukuda, Y Fukuda, T Hayakawa, E Ichihara, M Ishitsuka, Y Itow, T Kajita, J Kameda, K Kaneyuki, S Kasuga, K Kobayashi, Y Kobayashi, Y Koshio, M Miura, S Moriyama, M Nakahata, S Nakayama, T Namba, Y Obayashi, A Okada, M Oketa, K Okumura, T Oyabu, N Sakurai, M Shiozawa, Y Suzuki, Y Takeuchi, T Toshito, Y Totsuka, S Yamada, S Desai, M Earl, JT Hong, E Kearns, M Masuzawa, MD Messier, JL Stone, LR Sulak, CW Walter, W Wang, K Scholberg, T Barszczak, D Casper, DW Liu, W Gajewski, PG Halverson, J Hsu, WR Kropp, S Mine, LR Price, F Reines, M Smy, HW Sobel, MR Vagins, KS Ganezer, WE Keig, RW Ellsworth, S Tasaka, JW Flanagan, A Kibayashi, JG Learned, S Matsuno, VJ Stenger, Y Hayato, T Ishii, A Ichikawa, J Kanzaki, T Kobayashi, T Maruyama, K Nakamura, Y Oyama, A Sakai, M Sakuda, O Sasaki, S Echigo, T Iwashita, M Kohama, AT Suzuki, M Hasegawa, T Inagaki, Kato, I, H Maesaka, T Nakaya, K Nishikawa, S Yamamoto, TJ Haines, BK Kim, R Sanford, R Svoboda, E Blaufuss, ML Chen, Z Conner, JA Goodman, E Guillian, GW Sullivan, D Turcan, A Habig, M Ackerman, F Goebel, J Hill, CK Jung, T Kato, D Kerr, M Malek, K Martens, C Mauger, C McGrew, E Sharkey, B Viren, C Yanagisawa, W Doki, S Inaba, K Ito, M Kirisawa, M Kitaguchi, C Mitsuda, K Miyano, C Saji, M Takahata, M Takahashi, K Higuchi, Y Kajiyama, A Kusano, Y Nagashima, K Nitta, M Takita, T Yamaguchi, M Yoshida, HI Kim, SB Kim, J Yoo, H Okazawa, M Etoh, K Fujita, Y Gando, A Hasegawa, T Hasegawa, S Hatakeyama, K Inoue, K Ishihara, T Iwamoto, M Koga, Nishiyama, I, H Ogawa, J Shirai, A Suzuki, T Takayama, F Tsushima, M Koshiba, Y Ichikawa, T Hashimoto, Y Hatakeyama, M Koike, T Horiuchi, M Nemoto, K Nishijima, H Takeda, H Fujiyasu, T Futagami, H Ishino, Y Kanaya, M Morii, H Nishihama, H Nishimura, T Suzuki, Y Watanabe, D Kielczewska, U Golebiewska, HG Berns, SB Boyd, RA Doyle, JS George, AL Stachyra, LL Wai, RJ Wilkes, KK Young, H Kobayashi

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 501 ( 2-3 ) 418 - 462 2003年4月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

Super-Kamiokande is the world's largest water Cherenkov detector, with net mass 50,000 tons. During the period April, 1996 to July, 2001, Super-Kamiokande I collected 1678 live-days of data, observing neutrinos from the Sun, Earth's atmosphere, and the K2K long-baseline neutrino beam with high efficiency. These data provided crucial information for our current understanding of neutrino oscillations, as well as setting stringent limits on nucleon decay. In this paper, we describe the detector in detail, including its site, configuration, data acquisition equipment, online and offline software, and calibration systems which were used during Super-Kamiokande I. (C) 2003 Elsevier Science B.V. All rights reserved.

DOI： 10.1016/S0168-9002(03)00425-X

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Tracking performance of the scintillating fiber detector in the K2K experiment 査読

BJ Kim, T Iwashita, T Ishida, EJ Jeon, H Yokoyama, S Aoki, HG Berns, HC Bhang, S Boyd, K Fujii, T Hara, Y Hayato, J Hill, T Ishii, H Ishino, CK Jung, E Kearns, HI Kim, JH Kim, JY Kim, SB Kim, T Kobayashi, G Kume, S Matsuno, S Mine, K Nakamura, M Nakamura, K Nishikawa, M Onchi, T Otaki, Y Oyama, H Park, M Sakuda, K Sato, K Scholberg, E Sharkey, JL Stone, A Suzuki, K Takenaka, N Tamura, Y Tanaka, M Takatsuki, CW Walter, J Wilkes, J Yoo, M Yoshida

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 497 ( 2-3 ) 450 - 466 2003年2月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

The K2K long-baseline neutrino oscillation experiment uses a Scintillating Fiber Detector (SciFi) to reconstruct charged particles produced in neutrino interactions in the near detector. We describe the track reconstruction algorithm and the performance of the SciFi after 3 years of operation. (C) 2002 Elsevier Science B.V. All rights reserved.

DOI： 10.1016/S0168-9002(02)01980-0

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Measurement of the electroweak penguin process B -> X(s)l;(+)l(-) 査読

J Kaneko, K Abe, K Abe, T Abe, Adachi, I, BS Ahn, H Aihara, M Akatsu, Y Asano, T Aso, Aulchenko, V, T Aushev, AM Bakich, Y Ban, E Banas, W Bartel, A Bay, PK Behera, A Bondar, A Bozek, M Bracko, J Brodzicka, TE Browder, BCK Casey, P Chang, Y Chao, KF Chen, BG Cheon, R Chistov, Y Choi, YK Choi, M Danilov, LY Dong, S Eidelman, Eiges, V, Y Enari, CW Everton, F Fang, H Fujii, C Fukunaga, N Gabyshev, A Garmash, T Gershon, R Guo, J Haba, F Handa, T Hara, Y Harada, NC Hastings, H Hayashii, M Hazumi, EM Heenan, Higuchi, I, T Higuchi, L Hinz, T Hojo, Y Hoshi, WS Hou, HC Huang, T Igaki, Y Igarashi, T Iijima, K Inami, A Ishikawa, H Ishino, R Itoh, H Iwasaki, Y Iwasaki, HK Jang, JH Kang, JS Kang, N Katayama, H Kawai, Y Kawakami, N Kawamura, T Kawasaki, H Kichimi, DW Kim, H Kim, HJ Kim, HO Kim, H Kim, SK Kim, K Kinoshita, S Kobayashi, S Korpar, P Krizan, P Krokovny, R Kulasiri, S Kumar, YJ Kwon, JS Lange, G Leder, SH Lee, J Li, A Limosani, RS Lu, J MacNaughton, G Majumder, F Mandl, D Marlow, S Matsumoto, T Matsumoto, W Mitaroff, K Miyabayashi, Y Miyabayashi, H Miyake, GR Moloney, T Mori, T Nagamine, Y Nagasaka, T Nakadaira, E Nakano, M Nakao, JW Nam, K Neichi, S Nishida, O Nitoh, S Noguchi, T Nozaki, S Ogawa, T Ohshima, T Okabe, S Okuno, SL Olsen, Y Onuki, W Ostrowicz, H Ozaki, P Pakhlov, H Palka, CW Park, H Park, KS Park, JP Perroud, M Peters, LE Piilonen, N Root, K Rybicki, H Sagawa, Y Sakai, H Sakamoto, M Satapathy, A Satpathy, O Schneider, S Schrenk, C Schwanda, S Semenov, K Senyo, R Seuster, H Shibuya, B Shwartz, Sidorov, V, JB Singh, N Soni, S Stanic, K Sumisawa, T Sumiyoshi, K Suzuki, S Suzuki, SY Suzuki, SK Swain, H Tajima, T Takahashi, F Takasaki, K Tamai, N Tamura, J Tanaka, M Tanaka, GN Taylor, Y Teramoto, S Tokuda, M Tomoto, T Tomura, K Trabelsi, W Trischuk, T Tsuboyama, T Tsukamoto, S Uehara, K Ueno, S Uno, Y Ushiroda, G Varner, KE Varvell, CC Wang, CH Wang, JG Wang, MZ Wang, Y Watanabe, E Won, BD Yabsley, Y Yamada, A Yamaguchi, Y Yamashita, M Yamauchi, H Yanai, J Yashima, M Yokoyama, Y Yuan, Y Yusa, CC Zhang, J Zhang, ZP Zhang, Y Zheng, Zhilich, V, D Zontar

PHYSICAL REVIEW LETTERS 90 ( 2 ) 1 - 6 2003年1月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report the first measurement of the branching fraction for the inclusive decay B-->X(s)l(+)l(-), where . is either an electron or a muon, and X-s is a hadronic recoil system that contains an s quark. We analyzed a data sample of 65.4x10(6) B meson pairs collected with the Belle detector at the KEKB e(+)e(-) asymmetric-energy collider. We find B(B-->X(s)l(+)l(-))=[6.1 +/-1.4(stat) (+1.4)(-1.1)(syst)]x10(-6) for dilepton masses greater than 0.2 GeV/c(2).

DOI： 10.1103/PhysRevLett.90.021801

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Search for the electric dipole moment of the tau lepton 査読

K Inami, K Abe, K Abe, R Abe, T Abe, Adachi, I, H Aihara, M Akatsu, Y Asano, T Aso, Aulchenko, V, T Aushev, AM Bakich, Y Ban, E Banas, PK Behera, Bizjak, I, A Bondar, TE Browder, P Chang, Y Chao, BG Cheon, R Chistov, Y Choi, YK Choi, LY Dong, S Eidelman, Eiges, V, Y Enari, C Fukunaga, N Gabyshev, A Garmash, T Gershon, B Golob, C Hagner, F Handa, T Hara, H Hayashii, M Hazumi, Higuchi, I, T Higuchi, T Hokuue, Y Hoshi, WS Hou, HC Huang, T Igaki, T Iijima, A Ishikawa, H Ishino, R Itoh, H Iwasaki, HK Jang, JH Kang, JS Kang, N Katayama, H Kawai, Y Kawakami, N Kawamura, T Kawasaki, H Kichimi, HO Kim, H Kim, JH Kim, SK Kim, S Korpar, P Krokovny, R Kulasiri, A Kuzmin, YJ Kwon, JS Lange, G Leder, SH Lee, J Li, D Liventsev, RS Lu, J MacNaughton, F Mandl, T Matsuishi, S Matsumoto, T Matsumoto, W Mitaroff, H Miyake, H Miyata, T Nagamine, Y Nagasaka, T Nakadaira, E Nakano, M Nakao, JW Nam, S Nishida, T Nozaki, S Ogawa, T Ohshima, T Okabe, S Okuno, SL Olsen, W Ostrowicz, H Ozaki, P Pakhlov, H Park, KS Park, LS Peak, JP Perroud, LE Piilonen, K Rybicki, H Sagawa, S Saitoh, Y Sakai, M Satapathy, O Schneider, S Semenov, K Senyo, ME Sevior, H Shibuya, B Shwartz, Sidorov, V, JB Singh, N Soni, S Stanic, M Staric, A Sugi, A Sugiyama, K Sumisawa, T Sumiyoshi, S Suzuki, SY Suzuki, T Takahashi, F Takasaki, K Tamai, N Tamura, J Tanaka, M Tanaka, GN Taylor, Y Teramoto, S Tokuda, T Tomura, T Tsuboyama, T Tsukamoto, S Uehara, Y Unno, S Uno, G Varner, KE Varvell, CC Wang, Y Watanabe, BD Yabsley, Y Yamada, A Yamaguchi, Y Yamashita, Y Yusa, ZP Zhang, Zhilich, V, D Zontar

PHYSICS LETTERS B 551 ( 1-2 ) 16 - 26 2003年1月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

We have searched for a CP violation signature arising from an electric dipole moment (d(tau)) of the tau lepton in the e(+)e(-) --> tau(+)tau(-) reaction. Using an optimal observable method and 29.5 fb(-1) of data collected with the Belle detector at the KEKB collider at roots- = 10.58 GeV, we find Re(d(tau)) = (1.15 +/- 1.70) x 10(-17) e cm and Im(d(tau)) = (-0.83+/-0.86) < 0.8 x 10(-17) e cm and set the 95% confidence level limits -2.2 x 10(-17) < Re(dT) < 4.5 x 10(-17) e cm and -2.5 x 10(-17) < Im(dr) < 0.8 x 10(-17) e cm. (C) 2002 Elsevier Science B.V. All rights reserved.

DOI： 10.1016/S0370-2693(02)02984-2

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Search for anti-nu(e) from the sun at Super-Kamiokande I 査読

Gando, Y., Fukuda, S., Fukuda, Y., Ishitsuka, M., Itow, Y., Kajita, T., Kameda, J., Kaneyuki, K., Kobayashi, K., Koshio, Y., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Namba, T., Obayashi, Y., Okada, A., Ooyabu, T., Saji, C., Sakurai, N., Shiozawa, M., Suzuki, Y., Takeuchi, H., Takeuchi, Y., Totsuka, Y., Yamada, S., Desai, S., Earl, M., Kearns, E., Messier, M.D., Stone, J.L., Sulak, L.R., Walter, C.W., Goldhaber, M., Barszczak, T., Casper, D., Gajewski, W., Kropp, W.R., Mine, S., Liu, D.W., Smy, M.B., Sobel, H.W., Vagins, M.R., Gago, A., Ganezer, K.S., Hill, J., Keig, W.E., Ellsworth, R.W., Tasaka, S., Kibayashi, A., Learned, J.G., Matsuno, S., Takemori, D., Hayato, Y., Ichikawa, A.K., Ishii, T., Kobayashi, T., Maruyama, T., Nakamura, K., Oyama, Y., Sakuda, M., Yoshida, M., Kohama, M., Iwashita, T., Suzuki, A.T., Inagaki, T., Kato, I., Nakaya, T., Nishikawa, K., Haines, T.J., Dazeley, S., Hatakeyama, S., Svoboda, R., Blaufuss, E., Chen, M.L., Goodman, J.A., Guillian, G., Sullivan, G.W., Turcan, D., Scholberg, K., Habig, Alec, Ackermann, M., Jung, C.K., Martens, K., Malek, M., Mauger, C., McGrew, C., Sharkey, E., Viren, B., Yanagisawa, C., Toshito, T., Mitsuda, C., Miyano, K., Shibata, T., Kajiyama, Y., Nagashima, Y., Nitta, K., Takita, M., Kim, H.I., Kim, S.B., Yoo, J., Okazawa, H., Ishizuka, T., Etoh, M., Hasegawa, T., Inoue, K., Ishihara, K., Shirai, J., Suzuki, A., Koshiba, M., Hatakeyama, Y., Ichikawa, Y., Koike, M., Nishijima, K., Ishino, H., Morii, M., Nishimura, R., Watanabe, Y., Kielczewska, D., Berns, H.G., Boyd, S.C., Stachyra, A.L., Wilkes, R.J.

Phys.Rev.Lett. 90 ( 171302 ) 171302 - 171302 2003年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevLett.90.171302

Web of Science

arXiv

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Search for supernova relic neutrinos at SUPER-KAMIOKANDE 査読

Malek, M., Morii, M., Fukuda, S., Fukuda, Y., Ishitsuka, M., Itow, Y., Kajita, T., Kameda, J., Kaneyuki, K., Kobayashi, K., Koshio, Y., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Namba, T., Okada, A., Ooyabu, T., Saji, C., Sakurai, N., Shiozawa, M., Suzuki, Y., Takeuchi, H., Takeuchi, Y., Totsuka, Y., Yamada, S., Desai, S., Earl, M., Kearns, E., Messier, M.D., Stone, J.L., Sulak, L.R., Walter, C.W., Goldhaber, M., Barszczak, T., Casper, D., Gajewski, W., Kropp, W.R., Mine, S., Liu, D.W., Smy, M.B., Sobel, H.W., Vagins, M.R., Gago, A., Ganezer, K.S., Keig, W.E., Ellsworth, R.W., Tasaka, S., Kibayashi, A., Learned, J.G., Matsuno, S., Takemori, D., Hayato, Y., Ishii, T., Kobayashi, T., Maruyama, T., Nakamura, K., Obayashi, Y., Oyama, Y., Sakuda, M., Yoshida, M., Kohama, M., Iwashita, T., Suzuki, A.T., Ichikawa, A., Inagaki, T., Kato, I., Nakaya, T., Nishikawa, K., Haines, T.J., Dazeley, S., Hatakeyama, S., Svoboda, R., Blaufuss, E., Chen, M.L., Goodman, J.A., Guillian, G., Sullivan, G.W., Turcan, D., Scholberg, K., Habig, Alec, Ackermann, M., Hill, J., Jung, C.K., Martens, K., Mauger, C., McGrew, C., Sharkey, E., Viren, B., Yanagisawa, C., Toshito, T., Mitsuda, C., Miyano, K., Shibata, T., Kajiyama, Y., Nagashima, Y., Nitta, K., Takita, M., Kim, H.I., Kim, S.B., Yoo, J., Okazawa, H., Ishizuka, T., Etoh, M., Gando, Y., Hasegawa, T., Inoue, K., Ishihara, K., Shirai, J., Suzuki, A., Koshiba, M., Hatakeyama, Y., Ichikawa, Y., Koike, M., Nishijima, K., Ishino, H., Nishimura, R., Watanabe, Y., Kielczewska, D., Berns, H.G., Boyd, S.C., Stachyra, A.L., Wilkes, R.J.

Phys.Rev.Lett. 90 ( 061101 ) 061101 - 061101 2003年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevLett.90.061101

Web of Science

arXiv

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Observation of Ds+K- and evidence for D-s(+)pi(-) final states in neutral B decays 査読

P Krokovny, K Abe, K Abe, T Abe, Adachi, I, BS Ahn, H Aihara, M Akatsu, Y Asano, T Aso, Aulchenko, V, T Aushev, AM Bakich, Y Ban, E Banas, A Bay, Bedny, I, PK Behera, Bizjak, I, A Bondar, A Bozek, M Bracko, J Brodzicka, TE Browder, BCK Casey, P Chang, Y Chao, KF Chen, BG Cheon, R Chistov, SK Choi, Y Choi, M Danilov, LY Dong, A Drutskoy, S Eidelman, Eiges, V, Y Enari, CW Everton, F Fang, C Fukunaga, N Gabyshev, A Garmash, T Gershon, B Golob, A Gordon, R Guo, J Haba, K Hanagaki, F Handa, Y Harada, H Hayashii, M Hazumi, EM Heenan, T Higuchi, L Hinz, T Hojo, T Hokuue, Y Hoshi, WS Hou, HC Huang, T Igaki, T Iijima, K Inami, A Ishikawa, H Ishino, R Itoh, H Iwasaki, HK Jang, J Kaneko, JH Kang, JS Kang, N Katayama, H Kawai, Y Kawakami, N Kawamura, T Kawasaki, H Kichimi, DW Kim, H Kim, HJ Kim, HO Kim, H Kim, SK Kim, K Kinoshita, S Kobayashi, S Korpar, P Krizan, R Kulasiri, S Kumar, A Kuzmin, YJ Kwon, JS Lange, G Leder, SH Lee, J Li, A Limosani, D Liventsev, RS Lu, J MacNaughton, G Majumder, F Mandl, D Marlow, T Matsuishi, S Matsumoto, T Matsumoto, W Mitaroff, K Miyabayashi, Y Miyabayashi, H Miyake, H Miyata, GR Moloney, T Mori, A Murakami, T Nagamine, Y Nagasaka, T Nakadaira, E Nakano, M Nakao, H Nakazawa, JW Nam, Z Natkaniec, K Neichi, S Nishida, O Nitoh, T Nozaki, S Ogawa, T Ohshima, T Okabe, SL Olsen, Y Onuki, W Ostrowicz, H Ozaki, P Pakhlov, CW Park, H Park, JP Perroud, M Peters, LE Piilonen, FJ Ronga, N Root, K Rybicki, H Sagawa, S Saitoh, Y Sakai, H Sakamoto, M Satapathy, A Satpathy, O Schneider, C Schwanda, S Semenov, K Senyo, H Shibuya, B Shwartz, Sidorov, V, JB Singh, S Stanic, M Staric, A Sugi, A Sugiyama, K Sumisawa, T Sumiyoshi, K Suzuki, S Suzuki, SY Suzuki, SK Swain, T Takahashi, F Takasaki, K Tamai, N Tamura, J Tanaka, M Tanaka, GN Taylor, Y Teramoto, S Tokuda, T Tomura, K Trabelsi, T Tsuboyama, T Tsukamoto, S Uehara, K Ueno, Y Unno, S Uno, Y Ushiroda, G Varner, KE Varvell, CC Wang, CH Wang, JG Wang, MZ Wang, Y Watanabe, E Won, BD Yabsley, Y Yamada, A Yamaguchi, Y Yamashita, M Yamauchi, H Yanai, J Yashima, Y Yuan, Y Yusa, CC Zhang, J Zhang, ZP Zhang, Y Zheng, Zhilich, V, D Zontar

PHYSICAL REVIEW LETTERS 89 ( 23 ) 1 - 6 2002年12月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report the first observation of a B meson decay that is not accessible by a direct spectator process. The channel (B) over bar (0)-->Ds+K- is found in a sample of 85x10(6) B (B) over bar events, collected with the Belle detector at KEKB, with a branching fraction B((B) over bar (0)-->Ds+K-)=(4.6(-1.1)(+1.2)+/-1.3)x10(-5). We also obtain evidence for the B-0-->D(s)(+)pi(-) decay with branching fraction B(B-0-->D(s)(+)pi(-))=(2.4(-0.8)(+1.0)+/-0.7)x10(-5). This value may be used to extract a model-dependent value of \V-ub\.

DOI： 10.1103/PhysRevLett.89.231804

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Radiative B meson decays into K pi gamma and K pi pi gamma final states 査読

S Nishida, M Nakao, K Abe, K Abe, T Abe, BS Ahn, H Aihara, M Akatsu, Y Asano, T Aushev, AM Bakich, Y Ban, E Banas, W Bartel, A Bay, Bedny, I, A Bondar, A Bozek, M Bracko, J Brodzicka, TE Browder, BCK Casey, P Chang, Y Chao, BG Cheon, R Chistov, SK Choi, Y Choi, M Danilov, LY Dong, A Drutskoy, S Eidelman, Eiges, V, Y Enari, C Fukunaga, N Gabyshev, T Gershon, A Gordon, K Gotow, R Guo, J Haba, T Hara, H Hayashii, M Hazumi, EM Heenan, Higuchi, I, T Higuchi, T Hojo, T Hokuue, Y Hoshi, Hou, SR, WS Hou, SC Hsu, HC Huang, T Igaki, T Iijima, K Inami, A Ishikawa, H Ishino, R Itoh, M Iwamoto, H Iwasaki, Y Iwasaki, P Jalocha, HK Jang, JH Kang, P Kapusta, SU Kataoka, N Katayama, H Kawai, Y Kawakami, N Kawamura, T Kawasaki, H Kichimi, DW Kim, H Kim, HJ Kim, HO Kim, H Kim, TH Kim, K Kinoshita, P Krizan, P Krokovny, R Kulasiri, S Kumar, YJ Kwon, JS Lange, G Leder, SH Lee, J Li, RS Lu, J MacNaughton, G Majumder, F Mandl, S Matsumoto, T Matsumoto, Y Mikami, W Mitaroff, K Miyabayashi, H Miyake, H Miyata, GR Moloney, S Mori, T Nagamine, Y Nagasaka, T Nakadaira, E Nakano, JW Nam, Z Natkaniec, K Neichi, O Nitoh, S Noguchi, T Nozaki, S Ogawa, F Ohno, T Ohshima, T Okabe, S Okuno, SL Olsen, W Ostrowicz, H Ozaki, P Pakhlov, H Palka, CW Park, H Park, KS Park, LS Peak, JP Perroud, M Peters, LE Piilonen, M Rozanska, K Rybicki, H Sagawa, S Saitoh, Y Sakai, H Sakamoto, M Satapathy, A Satpathy, O Schneider, S Schrenk, C Schwanda, S Semenov, K Senyo, R Seuster, ME Sevior, H Shibuya, B Shwartz, Sidorov, V, JB Singh, S Stanic, A Sugi, A Sugiyama, K Sumisawa, T Sumiyoshi, K Suzuki, S Suzuki, T Takahashi, F Takasaki, K Tamai, N Tamura, M Tanaka, GN Taylor, Y Teramoto, S Tokuda, M Tomoto, T Tomura, SN Tovey, K Trabelsi, T Tsuboyama, T Tsukamoto, S Uehara, K Ueno, S Uno, Y Ushiroda, G Varner, KE Varvell, CC Wang, CH Wang, JG Wang, MZ Wang, Y Watanabe, E Won, BD Yabsley, Y Yamada, A Yamaguchi, H Yamamoto, Y Yamashita, M Yamauchi, Y Yuan, Y Yusa, J Zhang, ZP Zhang, Zhilich, V, D Zontar

PHYSICAL REVIEW LETTERS 89 ( 23 ) 1 - 6 2002年12月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMERICAN PHYSICAL SOC

We report observations of radiative B meson decays into the K(+)pi(-)gamma and K(+)pi(-)pi(+)gamma final states. In the B-0-->K(+)pi(-)gamma channel, we present evidence for decays via an intermediate tensor meson state with a branching fraction of B(B-0-->K-2(*)(1430)(0)gamma)=[1.3+/-0.5(stat)+/-0.1(syst)]x10(-5). We measure the branching fraction B(B+-->K(+)pi(-)pi(+)gamma)=[2.4+/-0.5(stat) (+0.4)(-0.2)(syst)]x10(-5), in which the B+-->K(*0)pi(+)gamma and B+-->K(+)rho(0)gamma channels dominate. The analysis is based on a data set of 29.4 fb(-1) recorded by the Belle experiment at the KEKB collider.

DOI： 10.1103/PhysRevLett.89.231801

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Measurement of the inclusive semileptonic branching fraction of B mesons and vertical bar V(cb)vertical bar 査読

K Abe, K Abe, T Abe, Adachi, I, BS Ahn, H Aihara, M Akatsu, Y Asano, T Aso, Aulchenko, V, T Aushev, AM Bakich, Y Ban, E Banas, A Bay, Bedny, I, PK Behera, A Bondar, A Bozek, M Bracko, J Brodzicka, TE Browder, BCK Casey, P Chang, Y Chao, BG Cheon, R Chistov, SK Choi, Y Choi, M Danilov, LY Dong, A Drutskoy, S Eidelman, Eiges, V, Y Enari, F Fang, C Fukunaga, N Gabyshev, A Garmash, T Gershon, B Golob, K Gotow, R Guo, K Hanagaki, F Handa, K Hara, T Hara, NC Hastings, H Hayashii, M Hazumi, EM Heenan, Higuchi, I, T Higuchi, T Hojo, T Hokuue, Y Hoshi, Hou, SR, WS Hou, SC Hsu, HC Huang, T Igaki, Y Igarashi, T Iijima, K Inami, A Ishikawa, H Ishino, R Itoh, H Iwasaki, Y Iwasaki, HK Jang, H Kakuno, J Kaneko, JH Kang, JS Kang, P Kapusta, SU Kataoka, N Katayama, H Kawai, Y Kawakami, N Kawamura, T Kawasaki, H Kichimi, DW Kim, H Kim, HJ Kim, HO Kim, H Kim, SK Kim, TH Kim, K Kinoshita, S Kobayashi, P Krokovny, R Kulasiri, S Kumar, A Kuzmin, YJ Kwon, JS Lange, G Leder, SH Lee, J Li, A Limosani, D Liventsev, RS Lu, J MacNaughton, G Majumder, F Mandl, T Matsuishi, S Matsumoto, T Matsumoto, Y Mikami, W Mitaroff, K Miyabayashi, Y Miyabayashi, H Miyake, H Miyata, GR Moloney, T Mori, T Nagamine, Y Nagasaka, T Nakadaira, E Nakano, M Nakao, JW Nam, Z Natkaniec, K Neichi, S Nishida, O Nitoh, S Noguchi, T Nozaki, S Ogawa, F Ohno, T Ohshima, T Okabe, S Okuno, SL Olsen, W Ostrowicz, H Ozaki, P Pakhlov, H Palka, CW Park, H Park, KS Park, LS Peak, JP Perroud, M Peters, LE Piilonen, FJ Ronga, N Root, K Rybicki, H Sagawa, S Saitoh, Y Sakai, H Sakamoto, M Satapathy, A Satpathy, O Schneider, C Schwanda, S Semenov, K Senyo, ME Sevior, H Shibuya, M Shimoyama, B Shwartz, Sidorov, V, JB Singh, S Stanic, A Sugi, A Sugiyama, K Sumisawa, T Sumiyoshi, K Suzuki, S Suzuki, SY Suzuki, SK Swain, T Takahashi, F Takasaki, K Tamai, N Tamura, J Tanaka, M Tanaka, GN Taylor, Y Teramoto, S Tokuda, M Tomoto, T Tomura, SN Tovey, K Trabelsi, T Tsuboyama, T Tsukamoto, S Uehara, K Ueno, Y Unno, S Uno, Y Ushiroda, KE Varvell, CC Wang, CH Wang, JG Wang, MZ Wang, Y Watanabe, E Won, BD Yabsley, Y Yamada, A Yamaguchi, Y Yamashita, M Yamauchi, J Yashima, K Yoshida, Y Yuan, Y Yusa, CC Zhang, J Zhang, ZP Zhang, Y Zheng, Zhilich, V, ZM Zhu, D Zontar

PHYSICS LETTERS B 547 ( 3-4 ) 181 - 192 2002年11月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

We present a measurement of the electron spectrum from inclusive semileptonic B decay, using 5.1 fb(-1) of Y(4S) data collected with the Belle detector. A high-momentum lepton tag was used to separate the semileptonic B decay electrons from secondary decal electrons. We obtained the branching fraction, B(B --> Xe(+)v) = (10.90 +/- 0.12 +/- 0.49)%, with minimal model dependence, From this measurement, we derive a value for the Cabibbo-Kobayashi-Maskawa matrix element [V(cb)] =0.0408 +/- 0.0010(exp) 0.0025(th). (C) 2002 Elsevier Science B.V. All rights reserved.

DOI： 10.1016/S0370-2693(02)02770-3

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Improved measurement of mixing-induced CP violation in the neutral B meson system 査読

K Abe, K Abe, T Abe, Adachi, I, H Aihara, M Akatsu, Y Asano, T Aso, Aulchenko, V, T Aushev, AM Bakich, E Banas, A Bay, PK Behera, Bizjak, I, A Bondar, A Bozek, M Bracko, J Brodzicka, TE Browder, BCK Casey, P Chang, Y Chao, KF Chen, BG Cheon, R Chistov, Y Choi, YK Choi, M Danilov, LY Dong, A Drutskoy, S Eidelman, Eiges, V, Y Enari, CW Everton, F Fang, H Fujii, C Fukunaga, N Gabyshev, A Garmash, T Gershon, B Golob, K Gotow, R Guo, J Haba, K Hanagaki, F Handa, K Hara, T Hara, Y Harada, NC Hastings, H Hayashii, M Hazumi, EM Heenan, Higuchi, I, T Higuchi, L Hinz, T Hojo, T Hokuue, Y Hoshi, WS Hou, HC Huang, T Igaki, Y Igarashi, T Iijima, K Inami, A Ishikawa, H Ishino, R Itoh, H Iwasaki, Y Iwasaki, HK Jang, H Kakuno, J Kaneko, JH Kang, JS Kang, N Katayama, H Kawai, H Kawai, Y Kawakami, N Kawamura, T Kawasaki, H Kichimi, DW Kim, H Kim, HJ Kim, HO Kim, H Kim, K Kinoshita, S Kobayashi, K Korotushenko, S Korpar, P Krizan, P Krokovny, S Kumar, A Kuzmin, YJ Kwon, JS Lange, G Leder, SH Lee, J Li, A Limosani, J MacNaughton, G Majumder, F Mandl, D Marlow, S Matsumoto, T Matsumoto, W Mitaroff, K Miyabayashi, Y Miyabayashi, H Miyake, GR Moloney, T Mori, A Murakami, T Nagamine, Y Nagasaka, T Nakadaira, E Nakano, M Nakao, H Nakazawa, JW Nam, Z Natkaniec, K Neichi, S Nishida, O Nitoh, S Noguchi, T Nozaki, S Ogawa, T Ohshima, T Okabe, SL Olsen, Y Onuki, W Ostrowicz, H Ozaki, P Pakhlov, H Palka, CW Park, H Park, KS Park, JP Perroud, LE Piilonen, FJ Ronga, N Root, M Rozanska, K Rybicki, H Sagawa, S Saitoh, Y Sakai, H Sakamoto, M Satapathy, A Satpathy, O Schneider, S Schrenk, C Schwanda, S Semenov, K Senyo, R Seuster, H Shibuya, B Shwartz, Sidorov, V, JB Singh, N Soni, S Stanic, A Sugi, A Sugiyama, K Sumisawa, T Sumiyoshi, K Suzuki, S Suzuki, SY Suzuki, H Tajima, T Takahashi, F Takasaki, K Tamai, N Tamura, J Tanaka, M Tanaka, GN Taylor, Y Teramoto, S Tokuda, T Tomura, K Trabelsi, W Trischuk, T Tsuboyama, T Tsukamoto, S Uehara, K Ueno, Y Unno, S Uno, N Uozaki, Y Ushiroda, SE Vahsen, G Varner, KE Varvell, CC Wang, CH Wang, JG Wang, MZ Wang, Y Watanabe, E Won, BD Yabsley, Y Yamada, A Yamaguchi, H Yamamoto, Y Yamashita, Y Yamashita, M Yamauchi, H Yanai, J Yashima, P Yeh, M Yokoyama, Y Yuan, Y Yusa, H Yuta, CC Zhang, J Zhang, ZP Zhang, Zhilich, V, D Zontar

PHYSICAL REVIEW D 66 ( 7 ) 1 - 6 2002年10月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We present an improved measurement of the standard model CP violation parameter sin 2phi(1) (also known as sin 2beta) based on a sample of 85x10(6) B (B) over bar pairs collected at the Y(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. One neutral B meson is reconstructed in a J/psiK(S)(0), psi(2S)K(S)(0), chi(c1)K(S)(0), eta(c)K(S)(0), J/psiK*(0), or J/psiK(L)(0) CP-eigenstate decay channel and the flavor of the accompanying B meson is identified from its decay products. From the asymmetry in the distribution of the time interval between the two B meson decay points, we obtain sin 2phi(1)=0.719+/-0.074(stat)+/-0.035(syst).

DOI： 10.1103/PhysRevD.66.071102

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Improvement of radiation hardness of double-sided silicon strip detector for Belle SVD upgrade 査読

J Kaneko, H Aihara, G Alimonti, A Hazumi, H Ishino, Y Li, K Sumisawa, H Tajima, J Tanaka, G Taylor, H Yamamoto, A Yokoyama, G Varner

IEEE TRANSACTIONS ON NUCLEAR SCIENCE 49 ( 4 ) 1593 - 1597 2002年8月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC

We have developed a double-sided silicon strip detector for the Belle silicon vertex detector upgrade. Since a radiation-hard front-end VLSI has been successfully developed, the shot noise due to the radiation-induced leakage current of the sensor will be the dominant source of the noise after irradiation in the Belle apparatus. Test structures with various strip pitches and strip widths were fabricated to study optimum strip width. The temperature dependence of the leakage current was measured with a prototype sensor after Co-60 gamma-ray irradiation. It was confirmed that the radiation-induced leakage current can be reduced by half by cooling the sensor from 25 to 15 degreesC. A radiation test with a prototype module consisting of a prototype sensor and front-end VLSI was also performed to evaluate the radiation hardness of the whole system. The signal-to-noise ratio was found to be better than 20 up to 5 Mrd(Si).

DOI： 10.1109/TNS.2002.801694

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Study of CP-violating asymmetries in B(0)->pi(+)pi(-) decays 査読

K Abe, K Abe, T Abe, Adachi, I, BS Ahn, H Aihara, M Akatsu, Y Asano, T Aso, Aulchenko, V, T Aushev, AM Bakich, Y Ban, E Banas, Bedny, I, S Behari, PK Behera, A Bondar, A Bozek, M Bracko, J Brodzicka, TE Browder, BCK Casey, P Chang, Y Chao, BG Cheon, R Chistov, SK Choi, Y Choi, M Danilov, LY Dong, J Dragic, A Drutskoy, S Eidelman, Eiges, V, Y Enari, CW Everton, F Fang, H Fujii, C Fukunaga, M Fukushima, N Gabyshev, A Garmash, T Gershon, B Golob, A Gordon, R Guo, J Haba, H Hamasaki, K Hanagaki, F Handa, K Hara, T Hara, NC Hastings, H Hayashii, M Hazumi, EM Heenan, Higuchi, I, T Higuchi, T Hojo, T Hokuue, Y Hoshi, K Hoshina, Hou, SR, WS Hou, SC Hsu, HC Huang, T Igaki, Y Igarashi, T Iijima, H Ikeda, K Inami, A Ishikawa, H Ishino, R Itoh, M Iwamoto, H Iwasaki, Y Iwasaki, DJ Jackson, P Jalocha, HK Jang, JH Kang, JS Kang, P Kapusta, N Katayama, H Kawai, H Kawai, N Kawamura, T Kawasaki, H Kichimi, DW Kim, H Kim, HJ Kim, HO Kim, H Kim, SK Kim, TH Kim, K Kinoshita, S Koishi, H Konishi, S Korpar, P Krizan, P Krokovny, R Kulasiri, S Kumar, A Kuzmin, YJ Kwon, JS Lange, G Leder, SH Lee, A Limosani, D Liventsev, RS Lu, J MacNaughton, G Majumder, F Mandl, D Marlow, T Matsuishi, S Matsumoto, T Matsumoto, Y Mikami, W Mitaroff, K Miyabayashi, Y Miyabayashi, H Miyake, H Miyata, GR Moloney, S Mori, T Mori, A Murakami, T Nagamine, Y Nagasaka, T Nakadaira, E Nakano, M Nakao, JW Nam, K Neichi, S Nishida, O Nitoh, S Noguchi, T Nozaki, S Ogawa, F Ohno, T Ohshima, T Okabe, S Okuno, SL Olsen, W Ostrowicz, H Ozaki, P Pakhlov, H Palka, CW Park, H Park, KS Park, LS Peak, JP Perroud, M Peters, LE Piilonen, E Prebys, JL Rodriguez, FJ Ronga, M Rozanska, K Rybicki, H Sagawa, S Saitoh, Y Sakai, H Sakamoto, M Satapathy, A Satpathy, O Schneider, S Schrenk, C Schwanda, S Semenov, K Senyo, ME Sevior, H Shibuya, B Shwartz, Sidorov, V, JB Singh, S Stanic, A Sugi, A Sugiyama, K Sumisawa, T Sumiyoshi, K Suzuki, S Suzuki, SY Suzuki, SK Swain, H Tajima, T Takahashi, F Takasaki, M Takita, K Tamai, N Tamura, J Tanaka, M Tanaka, GN Taylor, Y Teramoto, S Tokuda, M Tomoto, T Tomura, SN Tovey, K Trabelsi, W Trischuk, T Tsuboyama, T Tsukamoto, S Uehara, K Ueno, Y Unno, S Uno, Y Ushiroda, KE Varvell, CC Wang, CH Wang, JG Wang, MZ Wang, Y Watanabe, E Won, BD Yabsley, Y Yamada, M Yamaga, A Yamaguchi, H Yamamoto, Y Yamashita, M Yamauchi, J Yashima, P Yeh, M Yokoyama, K Yoshida, Y Yuan, Y Yusa, CC Zhang, J Zhang, Y Zheng, Zhilich, V, D Zontar

PHYSICAL REVIEW LETTERS 89 ( 7 ) 1 - 6 2002年8月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We present a measurement of CP-violating asymmetries in B(0)-->pi(+)pi(-) decays based on a 41.8 fb(-1) data sample collected at the Y(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We fully reconstruct one neutral B meson as a B(0)-->pi(+)pi(-) CP eigenstate and identify the flavor of the accompanying B meson from its decay products. From the asymmetry in the distribution of the time intervals between the two B meson decay points, we obtain the CP-violating asymmetry parameters S(pipi)=-1.21(-0.27)(+0.38)(stat)(-0.13)(+0.16)(syst) and A(pipi)=+0.94(-0.31)(+0.25)(stat)+/-0.09(syst).

DOI： 10.1103/PhysRevLett.89.071801

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Observation of mixing-induced CP violation in the neutral B meson system 査読

K Abe, K Abe, R Abe, T Abe, Adachi, I, BS Ahn, H Aihara, M Akatsu, Y Asano, T Aso, T Aushev, AM Bakich, Y Ban, E Banas, S Behari, PK Behera, A Bondar, A Bozek, M Bracko, TE Browder, BCK Casey, P Chang, Y Chao, BG Cheon, R Chistov, SK Choi, Y Choi, LY Dong, J Dragic, A Drutskoy, S Eidelman, Eiges, V, Y Enari, CW Everton, F Fang, C Fukunaga, M Fukushima, N Gabyshev, A Garmash, T Gershon, B Golob, A Gordon, H Guler, R Guo, J Haba, H Hamasaki, K Hanagaki, F Handa, K Hara, T Hara, NC Hastings, H Hayashii, M Hazumi, EM Heenan, Higuchi, I, T Higuchi, T Hojo, T Hokuue, Y Hoshi, Hou, SR, WS Hou, SC Hsu, HC Huang, T Igaki, T Iijima, H Ikeda, K Inami, A Ishikawa, H Ishino, R Itoh, H Iwasaki, Y Iwasaki, DJ Jackson, HK Jang, H Kakuno, JH Kang, JS Kang, P Kapusta, N Katayama, H Kawai, H Kawai, Y Kawakami, N Kawamura, T Kawasaki, H Kichimi, DW Kim, H Kim, HJ Kim, HO Kim, H Kim, SK Kim, TH Kim, K Kinoshita, H Konishi, S Korpar, P Krizan, P Krokovny, R Kulasiri, S Kumar, A Kuzmin, YJ Kwon, JS Lange, G Leder, SH Lee, A Limosani, D Liventsev, RS Lu, J MacNaughton, G Majumder, F Mandl, D Marlow, T Matsuishi, S Matsumoto, T Matsumoto, Y Mikami, W Mitaroff, K Miyabayashi, Y Miyabayashi, H Miyake, H Miyata, GR Moloney, S Mori, T Mori, A Murakami, T Nagamine, Y Nagasaka, Y Nagashima, T Nakadaira, E Nakano, M Nakao, JW Nam, Z Natkaniec, K Neichi, S Nishida, O Nitoh, S Noguchi, T Nozaki, S Ogawa, T Ohshima, T Okabe, S Okuno, SL Olsen, W Ostrowicz, H Ozaki, P Pakhlov, H Palka, CS Park, CW Park, H Park, KS Park, LS Peak, JP Perroud, M Peters, LE Piilonen, E Prebys, JL Rodriguez, F Ronga, M Rozanska, K Rybicki, H Sagawa, Y Sakai, M Satapathy, A Satpathy, O Schneider, S Schrenk, C Schwanda, S Semenov, K Senyo, ME Sevior, H Shibuya, B Shwartz, Sidorov, V, JB Singh, S Stanic, A Sugi, A Sugiyama, K Sumisawa, T Sumiyoshi, K Suzuki, S Suzuki, SY Suzuki, H Tajima, T Takahashi, F Takasaki, M Takita, K Tamai, N Tamura, J Tanaka, M Tanaka, GN Taylor, Y Teramoto, S Tokuda, M Tomoto, T Tomura, SN Tovey, K Trabelsi, W Trischuk, T Tsuboyama, T Tsukamoto, S Uehara, K Ueno, Y Unno, S Uno, Y Ushiroda, SE Vahsen, KE Varvell, CC Wang, CH Wang, JG Wang, MZ Wang, Y Watanabe, E Won, BD Yabsley, Y Yamada, M Yamaga, A Yamaguchi, H Yamamoto, T Yamanaka, Y Yamashita, M Yamauchi, J Yashima, M Yokoyama, Y Yuan, Y Yusa, H Yuta, CC Zhang, J Zhang, Y Zheng, Zhilich, V, D Zontar

PHYSICAL REVIEW D 66 ( 3 ) 1 - 22 2002年8月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

This article describes an observation of mixing-induced CP violation and a measurement of the CP violation parameter, sin 2phi(1), with the Belle detector at the KEKB asymmetric e(+)e(-) collider. Using a data sample of 29.1 fb(-1) recorded on the Y(4S) resonance that contains 31.3 million B (B) over bar pairs, we reconstruct decays of neutral B mesons to the following CP eigenstates: J/psiK(S)(0), psi(2S)K(S)(0), chi(c1)K(S)(0), eta(c)K(S)(0), J/psiK(L)(0) and J/psiK(*0). The flavor of the accompanying B meson is identified by combining information from primary and secondary leptons, K(+/-) mesons, Lambda baryons, slow and fast pions. The proper-time interval between the two B meson decays is determined from the distance between the two decay vertices measured with a silicon vertex detector. The result sin 2phi(1)=0.99+/-0.14(stat)+/-0.06(syst) is obtained by applying a maximum likelihood fit to the 1137 candidate events. We conclude that there is large CP violation in the neutral B meson system. A zero value for sin 2phi(1) is ruled out by more than six standard deviations.

DOI： 10.1103/PhysRevD.66.032007

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Study of B ->rho pi decays at Belle 査読

A Gordon, Y Chao, K Abe, K Abe, N Abe, R Abe, T Abe, BS Ahn, H Aihara, M Akatsu, Y Asano, T Aso, Aulchenko, V, T Aushev, AM Bakich, Y Ban, A Bay, Bedny, I, PK Behera, Bizjak, I, A Bondar, A Bozek, M Bracko, TE Browder, BCK Casey, MC Chang, P Chang, BG Cheon, R Chistov, Y Choi, YK Choi, M Danilov, LY Dong, J Dragic, A Drutskoy, S Eidelman, Eiges, V, Y Enari, CW Everton, F Fang, H Fujii, C Fukunaga, N Gabyshev, A Garmash, T Gershon, B Golob, R Guo, J Haba, T Hara, Y Harada, NC Hastings, H Hayashi, M Hazumi, EM Heenan, Higuchi, I, T Higuchi, L Hinz, T Hokuue, T Hoshi, Hou, SR, WS Hou, SC Hsu, HC Huang, T Igaki, Y Igarashi, T Iijima, K Inami, A Ishikawa, H Ishino, R Itoh, H Iwasaki, Y Iwasaki, HK Jang, JH Kang, JS Kang, N Katayama, Y Kawakami, N Kawamura, T Kawasaki, H Kichimi, DW Kim, H Kim, HJ Kim, HO Kim, H Kim, SK Kim, TH Kim, K Kinoshita, S Korpar, P Krokovny, R Kulasiri, S Kumar, A Kuzmin, YJ Kwon, JS Lange, G Leder, SH Lee, J Li, A Limosani, D Liventsev, RS Lu, J MacNaughton, G Majumder, F Mandl, D Marlow, S Matsumoto, T Matsumoto, W Mitaroff, K Miyabayashi, Y Miyabayashi, H Miyake, H Miyata, GR Moloney, T Mori, T Nagamine, T Nagasaka, T Nakadaira, E Nakano, M Nakao, JW Nam, Z Natkaniev, K Neichi, S Nishida, O Nitoh, S Noguchi, T Nozaki, S Ogawa, T Ohshima, T Okabe, S Okuno, SL Olsen, Y Onuki, W Ostrowicz, H Ozaki, P Pakhlov, H Palka, CW Park, H Park, LS Peak, JP Perroud, M Peters, LE Piilonen, JL Rodriguez, FJ Ronga, N Root, M Rozanska, K Rybicki, H Sagawa, S Saitoh, Y Sakai, M Satapathy, A Satpathy, O Schneider, S Schrenk, C Schwanda, S Semenov, K Senyo, R Seuster, ME Sevior, H Shibuya, Sidorov, V, JB Singh, S Stanic, M Staric, A Sugi, A Sugiyama, K Sumisawa, T Sumiyoshi, K Suzuki, S Suzuki, SY Suzuki, T Takahashi, F Takasaki, K Tamai, N Tamura, J Tanaka, M Tanaka, GN Taylor, T Teramoto, S Tokuda, SN Tovey, T Tsuboyama, T Tsukamoto, S Uehara, K Ueno, Y Unno, S Uno, Y Ushiroda, G Varner, KE Varvell, CC Wang, CH Wang, JG Wang, MZ Wang, Y Watanabe, E Won, BD Yabsley, Y Yamada, A Yamaguchi, Y Yamashita, M Yamauchi, H Yanai, P Yeh, Y Yuan, Y Yusa, J Zhang, ZP Zhang, Y Zheng, D Zontar

PHYSICS LETTERS B 542 ( 3-4 ) 183 - 192 2002年8月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

This Letter describes a study of B meson decays to the pseudoscalar-vector final state rhopi using 31.9 x 106 BB events collected with the Belle detector at KEKB. The branching fractions B(B+ --> rho(0)pi(+)) = (8.0(-2.0-0.7)(+2.3+0.7)) X 10(-6) and B(B-0 --> rho(+/-)pi(-/+)) = (20.8(-6.3-3.1)(+6.0+2.8)) x 10(-6) are obtained. In addition, a 90% confidence level upper limit of B(B-0 --> rho(0)pi(0)) < 5.3 x 10(-6) is reported. (C) 2002 Elsevier Science B.V. All rights reserved.

DOI： 10.1016/S0370-2693(02)02374-2

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Observation of B -> D(*)(K-K0)(*) decays 査読

A Drutskoy, K Abe, K Abe, N Abe, R Abe, T Abe, Adachi, I, BS Ahn, H Aihara, M Akatsu, Y Asano, T Aso, Aulchenko, V, T Aushev, AM Bakich, Y Ban, E Banas, A Bay, Bedny, I, PK Behera, Bizjak, I, A Bondar, A Bozek, TE Browder, BCK Casey, MC Chang, P Chang, Y Chao, KF Chen, BG Cheon, R Chistov, SK Choi, Y Choi, YK Choi, M Danilov, LY Dong, S Eidelman, Eiges, V, Y Enari, CW Everton, F Fang, C Fukunaga, N Gabyshev, A Garmush, T Gershon, R Guo, J Haba, T Hara, Y Harada, H Hayashi, M Hazumi, EM Heenan, Higuchi, I, T Higuchi, L Hinz, L Hokune, Y Hoshi, WS Hou, SC Hsu, HC Huang, T Igaki, Y Igarashi, T Iijima, K Inami, A Ishikawa, H Ishino, R Itoh, H Iwasaki, Y Iwasaki, HK Jang, JH Kang, JS Kang, P Kapusta, SU Kataoka, N Katayama, H Kawai, Y Kawakami, T Kawasaki, H Kichimi, DW Kim, H Kim, HJ Kim, H Kim, TH Kim, K Kinoshita, S Korpar, P Krizan, P Krokovny, R Kulasiri, S Kumar, A Kuzmin, YJ Kwon, G Leder, SH Lee, J Li, D Liventsev, RS Lu, J MacNaughton, G Majumder, F Mandl, D Marlow, T Matsuishi, S Matsumoto, T Matsumoto, W Mitaroff, Y Miyabayashi, H Miyake, H Miyata, GR Moloney, T Mori, T Nagamine, Y Nagasaka, T Nakadaira, E Nakano, M Nakao, JW Nam, Z Natkaniec, K Neichi, S Nishida, O Nitoh, S Noguchi, T Nozaki, S Ogawa, F Ohno, T Ohshima, T Okabe, S Okuno, SL Olsen, Y Onuki, W Ostrowicz, H Ozaki, P Pakhlov, H Palka, CW Park, H Park, LS Peak, JP Perroud, M Peters, LE Piilonen, N Root, M Rozanska, K Rybicki, H Sagawa, S Saitoh, Y Sakai, H Sakamoto, M Satapathy, A Satpathy, P Schneider, S Schrenk, S Semenov, K Senyo, R Seuster, ME Sevior, H Shibuya, Sidorov, V, JB Singh, N Soni, S Stanic, M Staric, A Sugi, S Sugiyama, K Sumisawa, T Sumiyoshi, SY Suzuki, T Takahashi, F Takasaki, K Tamai, N Tamura, J Tanaka, M Tanaka, GN Taylor, Y Teramoto, S Tokuda, M Tomoto, T Tomura, SN Tovey, K Trabelsi, T Tsuboyama, T Tsukomoto, S Uehara, K Ueno, Y Unno, S Uno, Y Ushiroda, G Varner, KE Varvell, CC Wang, CH Wang, JG Wang, MZ Wang, Y Watanabe, E Won, BD Yabsley, Y Yamada, A Yamaguchi, Y Yamashita, M Yamauchi, H Yanai, P Yeh, Y Yusa, J Zhang, ZP Zhang, Zhilich, V, D Zontar

PHYSICS LETTERS B 542 ( 3-4 ) 171 - 182 2002年8月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

The B --> D-(*) K-K ((*)0) decays have been observed for the first time. The branching fractions of the B --> D-(*) K-K ((*)0) decay modes are measured. Significant signals are found for the B --> D ((*)) (K-K*0) and B- --> (DK-KS0)-K-0 decay modes. The invariant mass and polarization distributions for the (K-K*0) and K-K-S(0) subsystems have been studied. For the (K-K*0) sybsystem these distributions agree well with those expected for two-body B --> D((*))a(1)(-) (1260) decays, with a(1)(-) (1260) (K-K*0). The analysis was done using 29.4 fb(-1) of data collected with the Belle detector at the e(+)e(-) asymmetric collider KEKB. (C) 2002 Elsevier Science B.V. All rights reserved.

DOI： 10.1016/S0370-2693(02)02373-0

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Observation of chi(c2) production in B meson decay 査読

K Abe, K Abe, T Abe, Adachi, I, H Aihara, M Akatsu, Y Asano, T Aso, Aulchenko, V, T Aushev, AM Bakich, Y Ban, E Banas, S Behari, PK Behera, A Bondar, A Bozek, M Bracko, TE Browder, BCK Casey, P Chang, Y Chao, BG Cheon, R Chistov, SK Choi, Y Choi, LY Dong, J Dragic, A Drutskoy, S Eidelman, Eiges, V, CW Everton, F Fang, H Fujii, C Fukunaga, M Fukushima, N Gabyshev, A Garmash, T Gershon, B Golob, A Gordon, K Gotow, R Guo, J Haba, H Hamasaki, K Hanagaki, F Handa, K Hara, T Hara, NC Hastings, H Hayashii, M Hazumi, EM Heenan, Higuchi, I, T Higuchi, T Hojo, T Hokuue, Y Hoshi, K Hoshina, Hou, SR, WS Hou, HC Huang, Y Igarashi, T Iijima, H Ikeda, K Inami, A Ishikawa, H Ishino, R Itoh, H Iwasaki, Y Iwasaki, DJ Jackson, HK Jang, JH Kang, JS Kang, P Kapusta, N Katayama, H Kawai, H Kawai, N Kawamura, T Kawasaki, H Kichimi, DW Kim, H Kim, HJ Kim, HO Kim, H Kim, SK Kim, TH Kim, K Kinoshita, H Konishi, S Korpar, P Krizan, P Krokovny, R Kulasiri, S Kumar, A Kuzmin, YJ Kwon, JS Lange, G Leder, SH Lee, A Limosani, D Liventsev, RS Lu, J MacNaughton, F Mandl, D Marlow, S Matsumoto, T Matsumoto, Y Mikami, K Miyabayashi, H Miyake, H Miyata, GR Moloney, GF Moorhead, S Mori, T Mori, T Nagamine, Y Nagasaka, Y Nagashima, T Nakadaira, E Nakano, M Nakao, JW Nam, Z Natkaniec, K Neichi, S Nishida, O Nitoh, S Noguchi, T Nozaki, S Ogawa, F Ohno, T Ohshima, T Okabe, S Okuno, SL Olsen, W Ostrowicz, H Ozaki, P Pakhlov, H Palka, CS Park, CW Park, H Park, KS Park, LS Peak, JP Perroud, M Peters, LE Piilonen, F Ronga, N Root, M Rozanska, K Rybicki, J Ryuko, H Sagawa, Y Sakai, H Sakamoto, M Satapathy, A Satpathy, O Schneider, S Schrenk, S Semenov, K Senyo, ME Sevior, H Shibuya, JB Singh, S Stanic, A Sugi, A Sugiyama, K Sumisawa, T Sumiyoshi, K Suzuki, S Suzuki, SY Suzuki, SK Swain, T Takahashi, F Takasaki, M Takita, K Tamai, N Tamura, J Tanaka, M Tanaka, GN Taylor, Y Teramoto, M Tomoto, T Tomura, SN Tovey, K Trabelsi, T Tsuboyama, T Tsukamoto, S Uehara, K Ueno, Y Unno, S Uno, Y Ushiroda, KE Varvell, CC Wang, CH Wang, JG Wang, MZ Wang, Y Watanabe, E Won, BD Yabsley, Y Yamada, M Yamaga, A Yamaguchi, H Yamamoto, Y Yamashita, M Yamauchi, M Yokoyama, Y Yuan, Y Yusa, CC Zhang, J Zhang, Y Zheng, Zhilich, V, D Zontar

PHYSICAL REVIEW LETTERS 89 ( 1 ) 1 - 5 2002年7月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report the first observation of chi(c2) production in B meson decays. We find an inclusive B-->chi(c2)X branching fraction of (1.80(-0.28)(+0.23)+/-0.26) x10(-3) . The data set, collected with the Belle detector at the KEKB e(+)e(-) collider, consists of 31.9x10(6) B (B) over bar events. We also present branching fractions and momentum spectra for both chi(c1) and chi(c2) production.

DOI： 10.1103/PhysRevLett.89.011803

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Measurements of branching fractions and decay amplitudes in B -> J/psi K* decays 査読

K Abe, K Abe, T Abe, Adachi, I, BS Ahn, H Aihara, M Akatsu, Y Asano, T Aso, Aulchenko, V, T Aushev, AM Bakich, Y Ban, E Banas, A Bay, PK Behera, A Bondar, A Bozek, TE Browder, BCK Casey, Y Chao, BG Cheon, R Chistov, SK Choi, Y Choi, M Danilov, LY Dong, S Eidelman, Eiges, V, Y Enari, F Fang, C Fukunaga, T Gershon, K Gotow, R Guo, J Haba, K Hanagaki, T Hara, H Hayashii, M Hazumi, EM Heenan, Higuchi, I, T Higuchi, T Hokuue, Y Hoshi, Hou, SR, WS Hou, HC Huang, T Igaki, T Iijima, K Inami, A Ishikawa, H Ishino, R Itoh, M Iwamoto, H Iwasaki, Y Iwasaki, P Jalocha, JH Kang, JS Kang, P Kapusta, SU Kataoka, N Katayama, H Kawai, Y Kawakami, N Kawamura, T Kawasaki, H Kichimi, DW Kim, H Kim, HJ Kim, HO Kim, H Kim, K Kinoshita, S Korpar, P Krizan, P Krokovny, R Kulasiri, S Kumar, YJ Kwon, JS Lange, G Leder, SH Lee, D Liventsev, J MacNaughton, G Majumder, T Matsuishi, S Matsumoto, T Matsumoto, W Mitaroff, K Miyabayashi, Y Miyabayashi, H Miyake, H Miyata, GR Moloney, S Mori, T Mori, T Nagamine, Y Nagasaka, T Nakadaira, E Nakano, A Nakao, JW Nam, Z Natkaniec, S Nishida, O Nitoh, T Nozaki, S Ogawa, F Ohno, T Ohshima, T Okabe, S Okuno, SL Olsen, W Ostrowicz, H Ozaki, P Pakhlov, H Palka, CW Park, H Park, KS Park, LE Piilonen, M Rozanska, K Rybicki, H Sagawa, S Saitoh, Y Sakai, M Satapathy, A Satpathy, O Schneider, S Schrenk, S Semenov, K Senyo, R Seuster, ME Sevior, H Shibuya, B Shwartz, Sidorov, V, JB Singh, S Stanic, A Sugi, A Sugiyama, K Sumisawa, T Sumiyoshi, K Suzuki, S Suzuki, SY Suzuki, T Takahashi, F Takasaki, N Tamura, M Tanaka, GN Taylor, Y Teramoto, S Tokuda, M Tomoto, T Tomura, SN Tovey, K Trabelsi, T Tsuboyama, T Tsukamoto, S Uehara, S Uno, SE Vahsen, G Varner, KE Varvell, CH Wang, JG Wang, MZ Wang, Y Watanabe, E Won, BD Yabsey, Y Yamada, A Yamaguchi, Y Yamashita, A Yamauchi, M Yokoyama, K Yoshida, Y Yuan, Y Yusa, J Zhang, ZP Zhang, Zhilich, V, ZM Zhu, D Zontar

PHYSICS LETTERS B 538 ( 1-2 ) 11 - 20 2002年6月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

The branching fractions and the decay amplitudes of B --> J/psiK* decays are measured in a 29.4 fb(-1) data sample collected with the Belle detector at the KEKB electron-positron collider. The decay amplitudes of helicity states of the J/psiK* system are determined from the full angular distribution of the final state particles in the transversity basis. The branching fractions are measured to be (1.29 +/- 0.05 +/- 0.13) x 10(-3) for neutral mesons and (1.28 +/- 0.07 +/- 0.14) x 10(-3) for charged mesons. The measured longitudinal and transverse (perpendicular to the transversity plane) amplitudes are \A(0)\(2) = 0.62 +/- 0.02 +/- 0.03 and \A(perpendicular to)\(2) = 0.19 +/- 0.02 +/- 0.03, respectively. The value of \A(perpendicular to)\(2) shows that the CP even component dominates in the B-0 --> J/psiK*(0)(K(S)pi(0)) decay. (C) 2002 Elsevier Science B.V. All rights reserved.

DOI： 10.1016/S0370-2693(02)01969-X

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Observation of B-+/--> p(p)over-barK(+/-) 査読

K Abe, K Abe, R Abe, T Abe, Adachi, I, BS Ahn, H Aihara, M Akatsu, Y Asano, T Aso, Aulchenko, V, T Aushev, AM Bakich, Y Ban, E Banas, S Behari, PK Behera, A Bondar, A Bozek, M Bracko, J Brodzicka, TE Browder, BCK Casey, P Chang, Y Chao, KF Chen, BG Cheon, R Chistov, SK Choi, Y Choi, M Danilov, LY Dong, J Dragic, A Drutskoy, S Eidelman, Eiges, V, Y Enari, CW Everton, F Fang, H Fujii, C Fukunaga, M Fukushima, N Gabyshev, A Garmash, T Gershon, K Gotow, R Guo, J Haba, H Hamasaki, F Handa, K Hara, T Hara, H Hayashii, M Hazumi, EM Heenan, Higuchi, I, T Higuchi, T Hojo, T Hokuue, Y Hoshi, Hou, SR, WS Hou, HC Huang, T Igaki, Y Igarashi, T Iijima, H Ikeda, K Inami, A Ishikawa, H Ishino, R Itoh, H Iwasaki, Y Iwasaki, P Jalocha, HK Jang, JH Kang, JS Kang, P Kapusta, N Katayama, H Kawai, H Kawai, Y Kawakami, N Kawamura, T Kawasaki, H Kichimi, DW Kim, HJ Kim, HO Kim, H Kim, SK Kim, K Kinoshita, H Konishi, S Korpar, P Krizan, P Krokovny, S Kumar, A Kuzmin, YJ Kwon, JS Lange, G Leder, SH Lee, A Limosani, D Liventsev, RS Lu, J MacNaughton, G Majumder, F Mandl, T Matsuishi, S Matsumoto, Y Mikami, W Mitaroff, K Miyabayashi, Y Miyabayashi, H Miyake, H Miyata, GR Moloney, T Nagamine, Y Nagasaka, Y Nagashima, M Nakao, JW Nam, Z Natkaniec, S Nishida, O Nitoh, S Noguchi, T Nozaki, S Ogawa, T Ohshima, T Okabe, S Okuno, SL Olsen, W Ostrowicz, H Ozaki, P Pakhlov, H Palka, CS Park, CW Park, KS Park, LS Peak, JP Perroud, M Peters, LE Piilonen, F Ronga, N Root, K Rybicki, H Sagawa, Y Sakai, H Sakamoto, M Satapathy, A Satpathy, O Schneider, S Schrenk, C Schwanda, S Semenov, K Senyo, H Shibuya, B Schwartz, Sidorov, V, JB Singh, S Stanic, A Sugi, A Sugiyama, K Sumisawa, K Suzuki, SY Suzuki, T Takahashi, F Takasaki, M Takita, K Tamai, N Tamura, J Tanaka, GN Taylor, Y Teramoto, S Tokuda, T Tomura, SN Tovey, K Trabelsi, T Tsuboyama, T Tsukamoto, S Uehara, K Ueno, Y Unno, S Uno, KE Varvell, CC Wang, CH Wang, JG Wang, MZ Wang, Y Watanabe, E Won, BD Yabsley, Y Yamada, M Yamaga, A Yamaguchi, H Yamamoto, Y Yamashita, M Yamauchi, S Yanaka, P Yeh, M Yokoyama, Y Yuan, J Zhang, Y Zheng, D Zontar

PHYSICAL REVIEW LETTERS 88 ( 18 ) 1 - 5 2002年5月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report the observation of the decay mode B+/--->p (p) over barK (+/-) based on an analysis of 29.4 fb(-1) of data collected by the Belle detector at KEKB. This is the first example of a b --> s transition with baryons in the final state. The p (p) over bar mass spectrum in this decay is inconsistent with phase space and is peaked at low mass. The branching fraction for this decay is measured to be B(B+/- --> p (p) over bar K+/-) = [4.3(-0. 9)(+1.1)(stat)+/-0.5(syst )] x 10(-6). We also report upper limits for the decays B-0 --> p (p) over barK(S) and B+/- --> p (p) over bar pi (+/-) .

DOI： 10.1103/PhysRevLett.88.181803

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Measurement of the lifetime difference in D-0 meson decays 査読

K. Abe, Belle Collaboration

PHYSICAL REVIEW LETTERS 88 ( 162001 ) 1 - 6 2002年4月

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevLett.88.162001

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その他リンク： http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevLett.88.162001/fulltext
Study of three-body charmless B decays 査読

A. Garmash, Belle Collaboration

PHYSICAL REVIEW D 65 ( 092005 ) 1 - 11 2002年4月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：The American Physical Society

DOI： 10.1103/PhysRevD.65.092005

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Measurement of Beta(B-over-bar(0)-> D(+)l(-)(nu)over-bar) and determination of vertical bar V(cb)vertical bar 査読

K Abe, K Abe, R Abe, T Abe, Adachi, I, BS Ahn, H Aihara, M Akatsu, Y Asano, T Aso, Aulchenko, V, T Aushev, AM Bakich, Y Ban, E Banas, S Behari, PK Behera, A Bondar, A Bozek, TE Browder, BCK Casey, P Chang, Y Chao, BG Cheon, R Chistov, SK Choi, Y Choi, LY Dong, A Drutskoy, S Eidelman, Eiges, V, CW Everton, F Fang, H Fujii, C Fukunaga, M Fukushima, N Gabyshev, A Garmash, T Gershon, A Gordon, R Guo, J Haba, H Hamasaki, K Hanagaki, F Handa, K Hara, T Hara, NC Hastings, H Hayashii, M Hazumi, EM Heenan, Higuchi, I, T Higuchi, T Hojo, T Hokuue, Y Hoshi, K Hoshina, Hou, SR, WS Hou, SC Hsu, HC Huang, Y Igarashi, T Iijima, H Ikeda, A Ishikawa, H Ishino, R Itoh, H Iwasaki, Y Iwasaki, DJ Jackson, P Jalocha, HK Jang, JH Kang, JS Kang, P Kapusta, N Katayama, H Kawai, H Kawai, N Kawamura, T Kawasaki, H Kichimi, DW Kim, H Kim, HJ Kim, HO Kim, H Kim, SK Kim, TH Kim, K Kinoshita, H Konishi, S Korpar, P Krizan, P Krokovny, R Kulasiri, S Kumar, A Kuzmin, YJ Kwon, JS Lange, G Leder, SH Lee, D Liventsev, RS Lu, J MacNaughton, T Matsubara, S Matsumoto, T Matsumoto, Y Mikami, K Miyabayashi, H Miyake, H Miyata, GR Moloney, S Mori, T Mori, A Murakami, T Nagamine, Y Nagasaka, Y Nagashima, T Nakadaira, E Nakano, M Nakao, JW Nam, Z Natkaniec, K Neichi, S Nishida, O Nitoh, S Noguchi, T Nozaki, S Ogawa, T Ohshima, T Okabe, S Okuno, SL Olsen, W Ostrowicz, H Ozaki, P Pakhlov, H Palka, CS Park, CW Park, H Park, KS Park, LS Peak, JP Perroud, M Peters, LE Piilonen, JL Rodriguez, N Root, M Rozanska, K Rybicki, J Ryuko, H Sagawa, Y Sakai, H Sakamoto, M Satapathy, A Satpathy, S Schrenk, S Semenov, K Senyo, ME Sevior, H Shibuya, B Shwartz, JB Singh, S Stanic, A Sugiyama, K Sumisawa, T Sumiyoshi, S Suzuki, SY Suzuki, SK Swain, T Takahashi, F Takasaki, M Takita, K Tamai, N Tamura, J Tanaka, M Tanaka, Y Tanaka, GN Taylor, Y Teramoto, M Tomoto, T Tomura, SN Tovey, K Trabelsi, T Tsuboyama, T Tsukamoto, S Uehara, K Ueno, Y Unno, S Uno, Y Ushiroda, KE Varvell, CC Wang, CH Wang, JG Wang, MZ Wang, Y Watanabe, E Won, BD Yabsley, Y Yamada, M Yamaga, A Yamaguchi, H Yamamoto, Y Yamashita, S Yanaka, J Yashima, M Yokoyama, K Yoshida, Y Yuan, Y Yusa, CC Zhang, J Zhang, HW Zhao, Y Zheng, Zhilich, V, D Zontar

PHYSICS LETTERS B 526 ( 3-4 ) 258 - 268 2002年2月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

We present a measurement of the branching fraction for the semileptonic B decay (B) over bar (0) --> D(+)l(-)(v) over bar, where l(-) can be either an electron or a muon. We find Gamma((B) over bar (0) --> D(+)l(-)(v) over bar) = (13.79 +/- 0.76 +/- 2.51) ns(-1), and the resulting branching fraction B((B) over bar (0) --> D(+)e(-)(v) over bar) = (2.13 +/- 0.12 +/- 0.39)%, where the first error is statistical and the second systematic. We also investigate the (B) over bar (0) --> D(+)l(-)(v) over bar form factor and the implications of the result for \V(cb)\. From a fit to the differential decay distribution we obtain the rate normalization \V(cb)\F(D)(1) = (4.11 +/- 0.44 +/- 0.52) X 10(-2). Using a theoretical calculation of F(D)(1), the Cabibbo-Kobayashi-Maskawa matrix element \V(cb)\ = (4.19 +/- 0.45 +/- 0.53 +/- 0.30) x 10(-2) is obtained, where the last error comes from the theoretical uncertainty of F(D)(1). The results are based on a data sample of 10.2 fb(-1) recorded at the gamma(4S) resonance with the Belle detector at the KEKB e(+)e(-) collider. (C) 2002 Elsevier Science B.V. All rights reserved.

DOI： 10.1016/S0370-2693(01)01483-6

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Production of prompt charmonia in e(+)e(-) annihilation at root s approximate to 10.6 GeV 査読

K Abe, K Abe, T Abe, Adachi, I, BS Ahn, H Aihara, M Akatsu, Y Asano, T Aso, T Aushev, AM Bakich, Y Ban, E Banas, S Behari, K Behera, A Bondar, A Bozek, TE Browder, BCK Casey, P Chang, Y Chao, BG Cheon, R Chistov, SK Choi, Y Choi, LY Dong, J Dragic, A Drutskoy, S Eidelman, Y Enari, F Fang, H Fujii, C Fukunaga, M Fukushima, N Gabyshev, A Garmash, T Gershon, A Gordon, R Guo, J Haba, H Hamasaki, F Handa, K Hara, T Hara, H Hayashii, M Hazumi, EM Heenan, Higuchi, I, T Hokuue, Y Hoshi, Hou, SR, WS Hou, HC Huang, Y Igarashi, T Iijima, H Ikeda, K Inami, A Ishikawa, H Ishino, R Itoh, H Iwasaki, Y Iwasaki, P Jalocha, HK Jang, JH Kang, JS Kang, P Kapusta, N Katayama, H Kawai, N Kawamura, T Kawasaki, H Kichimi, DW Kim, H Kim, HJ Kim, HC Kim, H Kim, SK Kim, TH Kim, K Kinoshita, S Kobayashi, H Konishi, P Krokovny, R Kulasiri, S Kumar, A Kuzmin, YJ Kwon, JS Lange, G Leder, SH Lee, D Liventsev, RS Lu, J MacNaughton, D Marlow, T Matsubara, S Matsumoto, T Matsumoto, Y Mikami, K Miyabayashi, H Miyake, H Miyata, GR Moloney, S Mori, T Mori, T Nagamine, Y Nagasaka, Y Nagashima, E Nakano, M Nakao, JW Nam, Z Natkaniec, K Neichi, S Nishida, O Nitoh, S Noguchi, T Nozaki, S Ogawa, T Ohshima, T Okabe, S Okuno, W Ostrowicz, H Ozaki, P Pakhlov, H Palka, CS Park, CW Park, H Park, KS Park, M Peters, LE Piilonen, N Root, K Rybicki, J Ryuko, H Sagawa, Y Sakai, H Sakamoto, M Satapathy, A Satpathy, S Schrenk, S Semenov, K Senyo, ME Sevior, H Shibuya, B Shwartz, S Stanic, A Sugi, A Sugiyama, K Sumisawa, T Sumiyoshi, JI Suzuki, K Suzuki, S Suzuki, SK Swain, T Takahashi, F Takasaki, M Takita, K Tamai, N Tamura, J Tanaka, M Tanaka, Y Tanaka, GN Taylor, Y Teramoto, M Tomoto, T Tomura, SN Tovey, K Trabelsi, W Trischuk, T Tsuboyama, T Tsukamoto, S Uehara, K Ueno, Y Unno, S Uno, Y Ushiroda, SE Vahsen, KE Varvell, CC Wang, CH Wang, JG Wang, MZ Wang, Y Watanabe, E Won, BD Yabsley, Y Yamada, M Yamaga, A Yamaguchi, Y Yamashita, M Yamauchi, K Yoshida, Y Yuan, Y Yusa, CC Zhang, J Zhang, HW Zhao, Y Zheng, Zhilich, V, D Zontar

PHYSICAL REVIEW LETTERS 88 ( 5 ) 1 - 6 2002年2月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

The production of prompt J/psi, psi(2S), chi(c1), and chi(c2) is studied using a 32.4 fb(-1) data sample collected with the Belle detector at Y(4S) and at 60 MeV below the resonance. The yield of prompt J/psi mesons in the Y(4S) sample is compatible with that of continuum production; we set an upper limit B(Y(4S)-->J/psiX) < 1.9 x 10(-4) at the 95% confidence level, and find sigma(e(+)e(-)-> J/psi X) = 1.47 +/- 0.10 +/- 0.13 pb. The cross sections for prompt psi(2S) and direct J/psi are measured. The J/psi momentum spectrum, production angle distribution, and polarization are studied.

DOI： 10.1103/PhysRevLett.88.052001

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The Belle detector 査読

A Abashian, K Abe, R Abe, K Abe, Adachi, I, BS Ahn, HS Ahn, H Aihara, M Akatsu, R Akhmetshin, JP Alexander, G Alimonti, Q An, K Aoki, M Asai, Y Asano, T Aso, Aulchenko, V, AM Bakich, E Banas, S Behari, PK Behera, D Beiline, A Bondar, A Bozek, TE Browder, BCK Casey, P Chang, YH Chang, Y Chao, HS Chen, HF Chen, YQ Chen, BG Cheon, S Chidzik, S Choi, Y Choi, L Dneprovsky, Y Doi, LY Dong, J Dragic, A Drutskoy, S Eidelman, R Enomoto, CW Everton, F Fang, H Fujii, K Fujimoto, Y Fujita, C Fukunaga, M Fukushima, Y Funahashi, A Garmash, A Gordon, K Gotow, Goriletsky, VI, BV Grinyov, H Guler, RS Guo, J Haba, F Haitani, H Hamasaki, H Hanada, K Hanagaki, K Hara, T Hara, T Haruyama, NC Hastings, K Hayashi, H Hayashii, M Hazumi, EM Heenan, Y Higashi, T Higuchi, S Hikita, T Hirai, H Hirano, M Hirose, N Hitomi, T Hojo, Y Hoshi, K Hoshina, WS Hou, SC Hsu, HC Huang, TJ Huang, S Ichizawa, S Igarashi, Y Igarashi, T Iijima, H Ikeda, H Ikeda, K Inami, Y Inoue, A Ishikawa, H Ishino, S Itami, R Itoh, G Iwai, M Iwai, H Iwasaki, Y Iwasaki, D Jackson, HK Jang, P Jalocha, M Jones, KK Joo, R Kagan, H Kakuno, J Kaneko, JS Kang, JH Kang, T Kani, P Kapusta, K Kasami, N Katayama, H Kawai, H Kawai, M Kawai, N Kawamura, T Kawasaki, H Kichimi, CH Kim, DW Kim, HJ Kim, H Kim, H Kim, SK Kim, K Kinoshita, S Kobayashi, T Kobayashi, S Koike, Y Kondo, K Korotushenko, S Kumar, T Kuniya, E Kurihara, A Kuzmin, YJ Kwon, J Lange, MC Lee, MH Lee, SH Lee, C Leonidopoulos, J Li, Y Li, HM Liu, T Liu, RS Lu, VR Lyubinsky, Y Makida, H Mamada, A Manabe, ZP Mao, D Marlow, T Matsuda, T Matsubara, S Matsumoto, T Matsumoto, H Matsuo, C Mindas, K Miyabayashi, H Miyake, H Miyata, A Mohapatra, LC Moffitt, GR Moloney, GF Moorhead, N Morgan, S Mori, A Murakami, T Murakami, Nagai, I, T Nagamine, Y Nagasaka, Y Nagashima, S Nagayama, T Nakadaira, T Nakamura, E Nakano, M Nakao, M Nakajima, T Nakajima, JW Nam, S Narita, Z Natkaniec, K Neichi, S Nishida, O Nitoh, S Noguchi, T Nomura, T Nozaki, K Ogawa, S Ogawa, R Ohkubo, Y Ohnishi, Y Ohshima, T Okabe, N Okazaki, S Okuno, SL Olsen, T Ooba, T Ohshima, W Ostrowicz, H Ozaki, P Pakhlov, H Palka, AI Panova, CS Park, CW Park, H Park, LS Peak, JC Peng, KC Peng, M Peters, L Piilonen, E Prebys, R Rabberman, JL Rodriguez, L Romanov, N Root, M Rosen, M Rosanska, K Rybicki, J Ryuko, H Sagawa, S Sahu, M Saito, Y Sakai, H Sakamoto, W Sanda, M Sanpei, T Sasaki, N Sasao, A Satpathy, M Satapathy, N Sato, S Schrenk, S Semenov, K Senyo, ME Sevior, KV Shakhova, DZ Shen, H Shibuya, K Shimada, LI Shpilinskaya, B Shwartz, A Sidorov, Sidorov, V, J Singh, S Stanic, R Stock, R Suda, A Sugi, A Sugiyama, S Suitoh, K Sumisawa, T Sumiyoshi, HF Sung, J Suzuki, JI Suzuki, K Suzuki, S Suzuki, SY Suzuki, S Swain, H Tajima, S Takahashi, T Takahashi, F Takasaki, T Takayama, N Tan, M Takita, K Tamai, N Tamura, J Tanaka, M Tanaka, Y Tanaka, T Tatomi, GN Taylor, Y Teramoto, M Tomoto, T Tomura, SN Tovey, K Trabelsi, KL Tsai, T Tsuboyama, Y Tsujita, K Tsukada, T Tsukamoto, T Tsukamoto, S Uehara, M Ueki, K Ueno, N Ujiie, Y Unno, S Uno, Y Ushiroda, Y Usov, G Varner, KE Varvell, EL Vinograd, CH Wang, CC Wang, MZ Wang, YF Wang, M Watanabe, Y Watanabe, R Wixted, E Won, ZZ Xu, B Yabsley, Y Yamada, M Yamaga, A Yamaguchi, H Yamaguchi, T Yamaki, H Yamamoto, T Yamanaka, H Yamaoka, Y Yamaoka, Y Yamashita, M Yamauchi, DS Yan, S Yanaka, SW Ye, ZW Yin, M Yokoyama, T Yokoyama, K Yoshida, Y Yoshimura, CX Yu, H Yuta, BG Zaslavsky, CC Zhang, J Zhang, SQ Zhang, ZP Zhang, H Zhao, ZG Zhao, YH Zheng, ZP Zheng, Zhilich, V, D Zontar

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 479 ( 1 ) 117 - 232 2002年2月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

The Belle detector was designed and constructed to carry out quantitative studies of rare B-meson decay modes with very small branching fractions using an asymmetric e(+)e(-) collider operating at the Y(4S) resonance, the KEK-B-factory. Such studies require data samples containing similar to10(7) B-meson decays. The Belle detector is configured around a 1.5 T superconducting solenoid and iron structure surrounding the KEK-B beams at the Tsukuba interaction region. B meson decay vertices are measured by a silicon vertex detector situated just outside of a cylindrical beryllium beam pipe. Charged particle tracking is performed by a wire drift chamber (CDC). Particle identification is provided by dE/dx measurements in CDC, aerogel threshold Cherenkov counter and time-of-flight counter placed radially outside or CDC. Electromagnetic showers are detected in an array of CsI(TI) crystals located inside the solenoid coil. Muons and K(L) mesons are identified by arrays of resistive plate counters interspersed in the iron yoke. The detector covers the 0 region extending from 17degrees to 150degrees, The part of the uncovered small-angle region is instrumented with a pair of BGO crystal arrays placed on the surfaces of the QCS cryostats in the forward and backward directions. Details of the design and development works of the detector subsystems, which include trigger, data acquisition and computer systems,are described. Results of performance of the detector subsystems are also presented. (C) 2002 Published by Elsevier Science B.V.

DOI： 10.1016/S0168-9002(01)02013-7

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Status of the belle SVD detector 査読

R Abe, H Aihara, G Alimonti, Y Asano, A Bakich, E Banas, A Bozek, T Browder, J Dragic, C Everton, C Fukunaga, A Gordon, H Guler, J Haba, K Hara, T Hara, N Hastings, M Hazumi, E Heenan, T Higuchi, T Hojo, H Ishino, G Iwai, P Jalocha, J Kaneko, P Kapusta, T Kawasaki, K Korotuschenko, J Lange, Y Li, D Marlow, T Matsubara, H Miyake, L Moffitt, G Moloney, S Mori, Y Nagashima, T Nakadaira, T Nakamura, Z Natkeniec, S Okuno, S Olsen, W Ostrowicz, H Palka, L Peak, M Rozanka, J Ryuko, M Sevior, K Shimada, S Stanic, K Sumisawa, R Stock, S Swain, H Tajima, S Takahashi, H Tagomori, F Takasaki, N Tamura, J Tanaka, M Tanaka, GN Taylor, T Tomura, K Trabelsi, T Tsuboyama, Y Tsujita, G Varner, K Varvell, Y Watanabe, Y Yamada, H Yamamoto, M Yokoyama, H Zhao, D Zontar

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 478 ( 1-2 ) 296 - 298 2002年2月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

The Belle spectrometer was designed for studies of B meson decays at an asymmetric e(+)e(-) collider operating at the gamma(4S) resonance. One of its crucial components, a silicon vertex detector (SVD), is placed just outside a cylindrical beryllium beam-pipe, After a year of Belle operation an upgraded version of SVD was installed during the regular summer shut-down. The new SVD follows the same design, with a few important improvements. Rad-soft readout electronics was replaced by rad-tolerant one, allowing for longer lifetime of the detector. A new radiation and temperature monitoring system was developed and implemented. A saw-shaped inner surface was introduced in the beam-pipe to prevent potential synchrotron radiation damage. The upgraded detector started operating successfully in October 2000. (C) 2002 Elsevier Science B.V. All rights reserved.

DOI： 10.1016/S0168-9002(01)01813-7

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Determination of vertical bar V-cb vertical bar using the semileptonic decay (B)over-bar0 -> D*(+)e(-)(nu)over-bar 査読

K Abe, K Abe, R Abe, T Abe, Adachi, I, BS Ahn, H Aihara, M Akatsu, Y Asano, T Aso, Aulchenko, V, T Aushev, AM Bakich, Y Ban, E Banas, S Behari, PK Behera, A Bondar, A Bozek, TE Browder, BCK Casey, P Chang, Y Chao, BG Cheon, R Chistov, SK Choi, Y Choi, LY Dong, A Drutskoy, S Eidelman, Eiges, V, CW Everton, F Fang, H Fujii, C Fukunaga, M Fukushima, N Gabyshev, A Garmash, T Gershon, A Gordon, R Guo, J Haba, H Hamasaki, K Hanagaki, F Handa, K Hara, T Hara, NC Hastings, H Hayashii, M Hazumi, EM Heenan, Higuchi, I, T Higuchi, T Hojo, T Hokuue, Y Hoshi, K Hoshina, Hou, SR, WS Hou, SC Hsu, HC Huang, Y Igarashi, T Iijima, H Ikeda, K Inami, A Ishikawa, H Ishino, R Itoh, H Iwasaki, Y Iwasaki, DJ Jackson, P Jalocha, HK Jang, JH Kang, JS Kang, P Kapusta, N Katayama, H Kawai, H Kawai, N Kawamura, T Kawasaki, H Kichimi, DW Kim, H Kim, HJ Kim, HO Kim, H Kim, SK Kim, TH Kim, K Kinoshita, H Konishi, S Korpar, P Krizan, P Krokovny, R Kulasiri, S Kumar, A Kuzmin, YJ Kwon, JS Lange, G Leder, SH Lee, D Liventsev, RS Lu, J MacNaughton, T Matsubara, S Matsumoto, T Matsumoto, Y Mikami, K Miyabayashi, H Miyake, H Miyata, GR Moloney, S Mori, T Mori, A Murakami, T Nagamine, Y Nagasaka, Y Nagashima, T Nakadaira, E Nakano, M Nakao, JW Nam, Z Natkaniec, K Neichi, S Nishida, O Nitoh, S Noguchi, T Nozaki, S Ogawa, T Ohshima, T Okabe, S Okuno, SL Olsen, W Ostrowicz, H Ozaki, P Pakhlov, H Palka, CS Park, CW Park, H Park, KS Park, LS Peak, Perroud, JR, M Peters, LE Piilonen, E Prebys, JL Rodriguez, N Root, M Rozanska, J Ryuko, H Sagawa, Y Sakai, H Sakamoto, M Satapathy, A Satpathy, S Schrenk, S Semenov, K Senyo, ME Sevior, H Shibuya, B Shwartz, JB Singh, S Stanic, A Sugiyama, K Sumisawa, T Sumiyoshi, S Suzuki, SY Suzuki, SK Swain, T Takahashi, F Takasaki, M Takita, K Tamai, N Tamura, J Tanaka, M Tanaka, Y Tanaka, GN Taylor, Y Teramoto, M Tomoto, T Tomura, SN Tovey, K Trabelsi, T Tsuboyama, T Tsukamoto, S Uehara, K Ueno, Y Unno, S Uno, Y Ushiroda, SE Vahsen, KE Varvell, CC Wang, CH Wang, JG Wang, MZ Wang, Y Watanabe, E Won, BD Yabsley, Y Yamada, M Yamaga, A Yamaguchi, H Yamamoto, Y Yamashita, M Yamauchi, S Yanaka, J Yashima, M Yokoyama, K Yoshida, Y Yuan, Y Yusa, CC Zhang, J Zhang, HW Zhao, Y Zheng, Zhilich, V, D Zontar

PHYSICS LETTERS B 526 ( 3-4 ) 247 - 257 2002年2月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

We present a measurement of the Cabibbo-Kobayashi-Maskawa (CKM) matrix element \V-cb\ using a 10.2 fb(-1) data sample recorded at the gamma(4S) resonance with the Belle detector at the KEKB asymmetric e(+)e(-) storage ring. By extrapolating the differential decay width of the (B) over bar (0) --> D*(+)e(-)(v) over bar decay to the kinematic limit at which the D*(+) is at rest with respect to the (B) over bar (0,) we extract the product of \V-cb\ with the normalization of the decay form factor F(1), \V-cb\F(1) = (3.54 +/- 0.19 +/- 0.18) x 10(-2), where the first error is statistical and the second is systematic. A value Of \V-cb\ = (3.88 +/- 0.21 +/- 0.20 +/- 0.19) x 10(-2) is obtained using a theoretical calculation of F(l), where the third error is due to the theoretical uncertainty in the value of F(l). The branching fraction B((B) over bar (0) --> D*(+)e(-) (v) over bar) is measured to be (4.59 +/- 0.23 +/- 0.40) x 10(-2). (C) 2002 Elsevier Science B.V. All rights reserved.

DOI： 10.1016/S0370-2693(01)01476-9

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Observation of Cabibbo-suppressed and W-exchange Lambda(+)(c) baryon decays 査読

K Abe, K Abe, R Abe, T Abe, Adachi, I, BS Ahn, H Aihara, M Akatsu, Y Asano, T Aso, Aulchenko, V, T Aushev, AM Bakich, Y Ban, E Banas, S Behari, PK Behera, A Bondar, A Bozek, TE Browder, BCK Casey, P Chang, Y Chao, BG Cheon, R Chistov, SK Choi, Y Choi, LY Dong, A Drutskoy, S Eidelman, Eiges, V, Y Enari, F Fang, H Fujii, C Fukunaga, M Fukushima, N Gabyshev, A Garmash, T Gershon, A Gordon, R Guo, J Haba, H Hamasaki, F Handa, K Hara, T Hara, NC Hastings, H Hayashii, M Hazumi, EM Heenan, Higuchi, I, T Higuchi, T Hojo, T Hokuue, Y Hoshi, K Hoshina, Hou, SR, WS Hou, SC Hsu, HC Huang, Y Igarashi, T Iijima, H Ikeda, K Inami, A Ishikawa, H Ishino, R Itoh, H Iwasaki, Y Iwasaki, DJ Jackson, P Jalocha, HK Jang, R Kagan, JH Kang, JS Kang, P Kapusta, N Katayama, H Kawai, H Kawai, N Kawamura, T Kawasaki, H Kichimi, DW Kim, H Kim, HJ Kim, HO Kim, H Kim, SK Kim, TH Kim, K Kinoshita, H Konishi, S Korpar, P Krizan, P Krokovny, R Kulasiri, S Kumar, A Kuzmin, YJ Kwon, JS Lange, G Leder, SH Lee, D Liventsev, RS Lu, J MacNaughton, T Matsubara, S Matsumoto, T Matsumoto, Y Mikami, K Miyabayashi, H Miyake, H Miyata, GR Moloney, S Mori, T Mori, T Nagamine, Y Nagasaka, Y Nagashima, T Nakadaira, E Nakano, M Nakao, JW Nam, Z Natkaniec, K Neichi, S Nishida, O Nitoh, S Noguchi, S Ogawa, T Ohshima, T Okabe, S Okuno, SL Olsen, W Ostrowicz, H Ozaki, P Pakhlov, H Palka, CS Park, CW Park, H Park, KS Park, LS Peak, JP Perroud, M Peters, LE Piilonen, N Root, M Rozanska, K Rybicki, J Ryuko, H Sagawa, Y Sakai, H Sakamoto, M Satapathy, O Schneider, S Schrenk, S Semenov, K Senyo, ME Sevior, H Shibuya, B Shwartz, JB Singh, S Stanic, A Sugi, A Sugiyama, K Sumisawa, T Sumiyoshi, K Suzuki, S Suzuki, SY Suzuki, SK Swain, T Takahashi, F Takasaki, M Takita, K Tamai, N Tamura, J Tanaka, M Tanaka, Y Tanaka, GN Taylor, Y Teramoto, M Tomoto, T Tomura, SN Tovey, T Tsuboyama, T Tsukamoto, S Uehara, K Ueno, Y Unno, S Uno, Y Ushiroda, SE Vahsen, KE Varvell, CC Wang, CH Wang, JG Wang, MZ Wang, Y Watanabe, E Won, BD Yabsley, Y Yamada, M Yamaga, A Yamaguchi, Y Yamashita, M Yamauchi, S Yanaka, J Yashima, M Yokoyama, K Yoshida, Y Yuan, Y Yusa, CC Zhang, J Zhang, HW Zhao, Y Zheng, Zhilich, V, D Zontar

PHYSICS LETTERS B 524 ( 1-2 ) 33 - 43 2002年1月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

We present measurements of the Cabibbo-suppressed decays Lambda(c)(+) --> Lambda(0)K(+) and Lambda(c)(+) --> Sigma(0)K(+) (both first observations), Lambda(c)(+) --> Sigma(+)K(+)pi(-) (seen with large statistics for the first time), Lambda(c)(+) --> pK(+)K(-) and Lambda(c)(+) --> pphi (measured with improved accuracy). Improved branching ratio measurements for the decays Lambda(c)(+) --> Sigma(+)K(+)K(-) and Lambda(c)(+) --> Sigma(+)phi, which are attributed to NV-exchange diagrarns, are shown. We also present the first evidence for Lambda(c)(+) --> Xi(1690)(0)K(+) and set an upper limit on the non-resonant decay Lambda(c)(+) --> Sigma(+)K(+)K(-). This analysis was performed using 32.6 fb(-1) of data collected by the Belle detector at the asymmetric e(+)e(-) collider KEKB, (C) 2002 Elsevier Science B.V. All rights reserved.

DOI： 10.1016/S0370-2693(01)01373-9

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Observation of B(+)->chi(c0)K(+) 査読

K Abe, K Abe, R Abe, Adachi, I, BS Ahn, H Aihara, M Akatsu, Y Asano, T Aso, Aulchenko, V, T Aushev, AM Bakich, E Banas, S Behari, PK Behera, A Bondar, A Bozek, TE Browder, BCK Casey, P Chang, Y Chao, BG Cheon, R Chistov, Y Choi, LY Dong, J Dragic, A Drutskoy, S Eidelman, Y Enari, H Fujii, C Fukunaga, M Fukushima, N Gabyshev, A Garmash, A Gordon, K Gotow, R Guo, J Haba, H Hamasaki, F Handa, K Hara, T Hara, NC Hastings, H Hayashii, M Hazumi, EM Heenan, Higuchi, I, H Hirano, T Hojo, T Hokuue, Y Hoshi, K Hoshina, Hou, SR, WS Hou, SC Hsu, HC Huang, Y Igarashi, T Iijima, H Ikeda, K Inami, A Ishikawa, H Ishino, R Itoh, H Iwasaki, Y Iwasaki, DJ Jackson, HK Jang, R Kagan, J Kaneko, JH Kang, JS Kang, P Kapusta, N Katayama, H Kawai, H Kawai, N Kawamura, T Kawasaki, H Kichimi, DW Kim, H Kim, HJ Kim, HO Kim, H Kim, SK Kim, K Kinoshita, S Kobayashi, H Konishi, P Krokovny, R Kulasiri, S Kumar, A Kuzmin, YJ Kwon, JS Lange, G Leder, SH Lee, D Liventsev, RS Lu, D Marlow, T Matsubara, S Matsumoto, T Matsumoto, Y Mikami, K Miyabayashi, H Miyake, H Miyata, GR Moloney, GF Moorhead, S Mori, T Mori, T Nagamine, Y Nagasaka, Y Nagashima, T Nakadaira, E Nakano, M Nakao, JW Nam, Z Natkaniec, K Neichi, S Nishida, O Nitoh, S Noguchi, T Nozaki, S Ogawa, T Ohshima, T Okabe, S Okuno, SL Olsen, W Ostrowicz, H Ozaki, P Pakhlov, H Palka, CS Park, CW Park, H Park, KS Park, LS Peak, M Peters, LE Piilonen, JL Rodriguez, N Root, M Rozanska, J Rybicki, J Ryuko, H Sagawa, Y Sakai, H Sakamoto, M Satapathy, A Satpathy, S Schrenk, S Semenov, K Senyo, ME Sevior, H Shibuya, B Shwartz, S Stanic, A Sugi, A Sugiyama, K Sumisawa, T Sumiyoshi, K Suzuki, S Suzuki, SY Suzuki, SK Swain, T Takahashi, F Takasaki, M Takita, K Tamai, N Tamura, J Tanaka, M Tanaka, Y Tanaka, GN Taylor, Y Teramoto, M Tomoto, T Tomura, SN Tovey, T Tsuboyama, T Tsukamoto, S Uehara, K Ueno, Y Unno, S Uno, Y Ushiroda, SE Vahsen, KE Varvell, CC Wang, CH Wang, JG Wang, MZ Wang, Y Watanabe, E Won, BD Yabsley, Y Yamada, M Yamaga, A Yamaguchi, H Yamamoto, Y Yamashita, M Yamauchi, S Yanaka, J Yashima, M Yokoyama, K Yoshida, Y Yuan, Y Yusa, CC Zhang, J Zhang, HW Zhao, Y Zheng, Zhilich, V, D Zontar

PHYSICAL REVIEW LETTERS 88 ( 3 ) 1 - 5 2002年1月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

Using a sample of 31.3 X 10(6) B(B) over bar pairs collected with the Belle detector at the Y(4S) resonance, we make the first observation of the charged B meson decay to chi(c0) and a charged kaon. The measured branching fraction is B (B(+) --> chi(c0)K(+)) = (6.0(-1.8)(+2.1) +/- 1.1) X 10(-4), where the first error is statistical, and the second is systematic.

DOI： 10.1103/PhysRevB.88.031802

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Determination of solar neutrino oscillation parameters using 1496 days of Super-Kamiokande I data 査読

Fukuda, S., Fukuda, Y., Ishitsuka, M., Itow, Y., Kajita, T., Kameda, J., Kaneyuki, K., Kobayashi, K., Koshio, Y., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Namba, T., Okada, A., Sakurai, N., Shiozawa, M., Suzuki, Y., Takeuchi, H., Takeuchi, Y., Totsuka, Y., Yamada, S., Desai, S., Earl, M., Kearns, E., Messier, M.D., Sulak, L.R., Walter, C.W., Goldhaber, M., Barszczak, T., Casper, D., Gajewski, W., Kropp, W.R., Mine, S., Liu, D.W., Smy, M.B., Sobel, H.W., Vagins, M.R., Gago, A., Ganezer, K.S., Keig, W.E., Ellsworth, R.W., Tasaka, S., Kibayashi, A., Learned, J.G., Matsuno, S., Takemori, D., Hayato, Y., Ishii, T., Kobayashi, T., Maruyama, T., Nakamura, K., Obayashi, Y., Oyama, Y., Sakuda, M., Yoshida, M., Kohama, M., Iwashita, T., Suzuki, A.T., Ichikawa, A., Inagaki, T., Kato, I., Nakaya, T., Nishikawa, K., Haines, T.J., Dazeley, S., Hatakeyama, S., Svoboda, R., Blaufuss, E., Chen, M.L., Goodman, J.A., Guillian, G., Sullivan, G.W., Turcan, D., Scholberg, K., Habig, Alec, Ackermann, M., Hill, J., Jung, C.K., Malek, M., Martens, K., Mauger, C., McGrew, C., Sharkey, E., Viren, B., Yanagisawa, C., Toshito, T., Mitsuda, C., Miyano, K., Saji, C., Shibata, T., Kajiyama, Y., Nagashima, Y., Nitta, K., Takita, M., Kim, H.I., Kim, S.B., Yoo, J., Okazawa, H., Ishizuka, T., Etoh, M., Gando, Y., Hasegawa, T., Inoue, K., Ishihara, K., Shirai, J., Suzuki, A., Koshiba, M., Hatakeyama, Y., Ichikawa, Y., Koike, M., Nishijima, K., Ishino, H., Morii, M., Nishimura, R., Watanabe, Y., Kielczewska, D., Berns, H.G., Boyd, S.C., Stachyra, A.L., Wilkes, R.J.

Phys.Lett.B 539 ( 3-4 ) 179 - 187 2002年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1016/S0370-2693(02)02090-7

Web of Science

arXiv

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Search for neutrinos from gamma-ray bursts using Super-Kamiokande 査読

Fukuda, S., Fukuda, Y., Ishitsuka, M., Itow, Y., Kajita, T., Kameda, J., Kaneyuki, K., Kobayashi, K., Koshio, Y., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Okada, A., Sakurai, N., Shiozawa, M., Suzuki, Y., Takeuchi, H., Takeuchi, Y., Toshito, T., Totsuka, Y., Yamada, S., Desai, S., Kearns, E., Messier, M.D., Stone, J.L., Sulak, L.R., Walter, C.W., Wang, W., Goldhaber, M., Casper, D., Gajewski, W., Kropp, W.R., Mine, S., Liu, D.W., Smy, M.B., Sobel, H.W., Vagins, M.R., Ganezer, K.S., Keig, W.E., Ellsworth, R.W., Tasaka, S., Kibayashi, A., Learned, J.G., Matsuno, S., Hayato, Y., Ichikawa, A., Ishii, T., Kobayashi, T., Maruyama, T., Nakamura, K., Obayashi, Y., Oyama, Y., Sakuda, M., Yoshida, M., Iwashita, T., Kohama, M., Suzuki, A.T., Inagaki, T., Kato, I., Nakaya, T., Nishikawa, K., Haines, T.J., Dazeley, S., Svoboda, R., Blaufuss, E., Goodman, J.A., Guillian, G., Sullivan, G.W., Turčan, D., Scholberg, K., Habig, A., Hill, J., Jung, C.K., Martens, K., Malek, M., Mauger, C., McGrew, C., Sharkey, E., Viren, B., Yanagisawa, C., Mitsuda, C., Miyano, K., Saji, C., Shibata, T., Kajiyama, Y., Nagashima, Y., Nitta, K., Takita, M., Kim, H.I., Kim, S.B., Yoo, J., Okazawa, H., Ishizuka, T., Etoh, M., Gando, Y., Hasegawa, T., Inoue, K., Ishihara, K., Nishiyama, I., Shirai, J., Suzuki, A., Koshiba, M., Ichikawa, Y., Nishijima, K., Fujiyasu, H., Ishino, H., Morii, M., Watanabe, Y., Kielczewska, D., Stachyra, A.L., Wilkes, R.J.

Astrophys.J. 578 ( 1 ) 317 - 324 2002年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1086/342405

Web of Science

arXiv

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Precise Measurement of [Formula presented] Meson Lifetimes with Hadronic Decay Final States 査読

K. Abe, K. Abe, R. Abe, T. Abe, I. Adachi, Byoung Sup Ahn, H. Aihara, M. Akatsu, Y. Asano, T. Aso, T. Aushev, A. M. Bakich, Y. Ban, E. Banas, S. Behari, P. K. Behera, A. Bondar, A. Bozek, J. Brodzicka, T. E. Browder, B. C.K. Casey, P. Chang, Y. Chao, B. G. Cheon, R. Chistov, S. K. Choi, Y. Choi, L. Y. Dong, J. Dragic, A. Drutskoy, S. Eidelman, V. Eiges, Y. Enari, C. W. Everton, F. Fang, H. Fujii, C. Fukunaga, M. Fukushima, N. Gabyshev, A. Garmash, T. Gershon, A. Gordon, H. Guler, R. Guo, J. Haba, H. Hamasaki, K. Hanagaki, F. Handa, K. Hara, T. Hara, N. C. Hastings, H. Hayashii, M. Hazumi, E. M. Heenan, I. Higuchi, T. Higuchi, T. Hokuue, Y. Hoshi, S. R. Hou, W. S. Hou, S. C. Hsu, H. C. Huang, T. Igaki, Y. Igarashi, T. Iijima, H. Ikeda, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, H. Iwasaki, Y. Iwasaki, H. K. Jang, J. H. Kang, J. S. Kang, P. Kapusta, N. Katayama, H. Kawai, H. Kawai, Y. Kawakami, N. Kawamura, T. Kawasaki, H. Kichimi, D. W. Kim, Heejong Kim, H. J. Kim, H. O. Kim, Hyunwoo Kim, S. K. Kim, T. H. Kim, K. Kinoshita, H. Konishi, S. Korpar, P. Križan, P. Krokovny, R. Kulasiri, S. Kumar, A. Kuzmin, Y. J. Kwon, J. S. Lange, S. H. Lee, A. Limosani, D. Liventsev, R. S. Lu, J. MacNaughton, G. Majumder, F. Mandl, D. Marlow, T. Matsubara, T. Matsuishi, S. Matsumoto, T. Matsumoto, Y. Mikami, W. Mitaroff, K. Miyabayashi, Y. Miyabayashi, H. Miyake, H. Miyata, G. R. Moloney, S. Mori, T. Mori, T. Nagamine, Y. Nagasaka, Y. Nagashima, T. Nakadaira, E. Nakano, M. Nakao, J. W. Nam, Z. Natkaniec, K. Neichi, S. Nishida, O. Nitoh, S. Noguchi, T. Nozaki, S. Ogawa, F. Ohno, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, W. Ostrowicz, H. Ozaki, P. Pakhlov, H. Palka, C. S. Park, C. W. Park, H. Park, K. S. Park, L. S. Peak, J. P. Perroud, M. Peters, L. E. Piilonen, J. L. Rodriguez, F. Ronga, M. Rozanska, K. Rybicki, H. Sagawa, Y. Sakai, M. Satapathy, A. Satpathy, O. Schneider, S. Schrenk, C. Schwanda, S. Semenov, K. Senyo, M. E. Sevior, H. Shibuya, B. Shwartz, V. Sidorov, J. B. Singh, S. Stanič, A. Sugi, A. Sugiyama, K. Sumisawa, T. Sumiyoshi, K. Suzuki, S. Suzuki, S. Y. Suzuki, H. Tajima, T. Takahashi, F. Takasaki, M. Takita, K. Tamai, N. Tamura, J. Tanaka, M. Tanaka, G. N. Taylor, Y. Teramoto, S. Tokuda, M. Tomoto, T. Tomura, S. N. Tovey, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, S. Uehara, K. Ueno, Y. Unno, S. Uno, Y. Ushiroda, K. E. Varvell, C. C. Wang, C. H. Wang, J. G. Wang, M. Z. Wang, Y. Watanabe, E. Won, B. D. Yabsley, Y. Yamada, M. Yamaga, A. Yamaguchi, H. Yamamoto, Y. Yamashita, M. Yamauchi, S. Yanaka, J. Yashima, M. Yokoyama, Y. Yuan, Y. Yusa, C. C. Zhang, J. Zhang, Y. Zheng, V. Zhilich, D. Žontar

Physical Review Letters 88 ( 17 ) 6 - 6 2002年

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記述言語：英語掲載種別：研究論文（学術雑誌）

The lifetimes of the [Formula presented] and [Formula presented] mesons are extracted from [Formula presented] of data collected with the Belle detector at the KEK [Formula presented] factory. A fit to the decay length differences of neutral and charged [Formula presented] meson pairs, measured in events where one of the [Formula presented] mesons is fully reconstructed in several hadronic modes, yields [Formula presented], [Formula presented], and [Formula presented]. © 2002 The American Physical Society.

DOI： 10.1103/PhysRevLett.88.171801

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Scopus

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Belle実験の最近の結果(新世紀の素粒子像,研究会報告)

石野宏和

素粒子論研究 104 ( 4 ) D7 - D10 2002年

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記述言語：日本語出版者・発行元：素粒子論グループ素粒子論研究編集部

DOI： 10.24532/soken.104.4_D7

CiNii Article

CiNii Books

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Observation of B -> J/psi K(1)(1270) 査読

K Abe, K Abe, Adachi, I, BS Ahn, H Aihara, Y Asano, T Aso, Aulchenko, V, T Aushev, AM Bakich, E Banas, W Bartel, S Behari, PK Behera, D Beiline, A Bondar, A Bozek, TE Browder, BCK Casey, P Chang, Y Chao, BG Cheon, SK Choi, Y Choi, J Dragic, A Drutskoy, S Eidelman, Y Enari, F Fang, H Fujii, C Fukunaga, M Fukushima, A Garmash, A Gordon, K Gotow, R Guo, J Haba, H Hamasaki, K Hanagaki, K Hara, T Hara, NC Hastings, H Hayashii, M Hazumi, EM Heenan, Y Higasino, Higuchi, I, T Higuchi, H Hirano, T Hojo, Y Hoshi, Hou, SR, WS Hou, SC Hsu, HC Huang, Y Igarashi, T Iijima, H Ikeda, K Inami, A Ishikawa, H Ishino, R Itoh, G Iwai, H Iwasaki, Y Iwasaki, DJ Jackson, P Jalocha, HK Jang, M Jones, R Kagan, H Kakuno, J Kaneko, JH Kang, JS Kang, P Kapusta, N Katayama, H Kawai, H Kawai, N Kawamura, T Kawasaki, H Kichimi, DW Kim, H Kim, HJ Kim, H Kim, SK Kim, TH Kim, K Kinoshita, S Kobayashi, S Koishi, P Krokovny, R Kulasiri, S Kumar, A Kuzmin, YJ Kwon, JS Lange, SH Lee, D Liventsev, RS Lu, D Marlow, T Matsubara, S Matsui, S Matsumoto, T Matsumoto, Y Mikami, K Miyabayashi, H Miyake, H Miyata, GR Moloney, GF Moorhead, S Mori, T Mori, A Murakami, T Nagamine, Y Nagasaka, Y Nagashima, T Nakadaira, E Nakano, M Nakao, JW Nam, S Narita, Z Natkaniec, K Neichi, S Nishida, O Nitoh, S Noguchi, T Nozaki, S Ogawa, T Ohshima, T Okabe, S Okuno, SL Olsen, H Ozaki, P Pakhlov, H Palka, CS Park, CW Park, H Park, LS Peak, M Peters, LE Piilonen, E Prebys, JL Rodriguez, N Root, M Rozanska, K Rybicki, H Sagawa, Y Sakai, H Sakamoto, M Satapathy, A Satpathy, S Schrenk, S Semenov, K Senyo, ME Sevior, H Shibuya, B Shwartz, S Stanic, A Sugi, A Sugiyama, K Sumisawa, T Sumiyoshi, JI Suzuki, K Suzuki, S Suzuki, SY Suzuki, SK Swain, T Takahashi, F Takasaki, M Takita, K Tamai, N Tamura, J Tanaka, M Tanaka, Y Tanaka, GN Taylor, Y Teramoto, M Tomoto, T Tomura, SN Tovey, K Trabelsi, T Tsuboyama, T Tsukamoto, S Uehara, K Ueno, Y Unno, S Uno, Y Ushiroda, SE Vahsen, KE Varvell, CH Wang, JG Wang, MZ Wang, Y Watanabe, E Won, BD Yablsey, Y Yamada, M Yamaga, A Yamaguchi, H Yamamoto, Y Yamashita, M Yamauchi, S Yanaka, K Yoshida, Y Yusa, H Yuta, CC Zhang, J Zhang, HW Zhao, Y Zheng, Zhilich, V, D Zontar

PHYSICAL REVIEW LETTERS 87 ( 16 ) 1 - 6 2001年10月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report the first observation of the exclusive decay process B --> J/psiK(1)(1270) using a sample of 11.2M B(B) over bar meson pairs collected in the Belle detector at the KEKB asymmetric energy e(+)e(-) collider. We measure branching fractions of B[B(0) --> J/psiK(1)(0)(1270)] = (1.30 +/- 0.34 +/- 0.32) x 10(-3) and B[B(+) --> J/psiK(1)(+)(1270)] = (1.80 +/- 0.34 +/- 0.39) x 10(-3), where the first error is statistical and the second is systematic. These modes constitute approximately 15% of the total number of B --> J/psiX decays. No evidence is seen for B --> J/psiK(1)(1400) and we set an upper limit for this branching fraction.

DOI： 10.1103/PhysRevLett.87.161601

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Measurement of the branching fraction for B -> eta ' K and search for B -> eta 'pi(+) 査読

K Abe, K Abe, R Abe, Adachi, I, BS Ahn, H Aihara, M Akatsu, Y Asano, T Aso, Aulchenko, V, AM Bakich, E Banas, S Behari, PK Behera, D Beiline, A Bondar, A Bozek, TE Browder, BCK Casey, P Chang, Y Chao, BG Cheon, R Chistov, SK Choi, Y Choi, LY Dong, J Dragic, S Eidelman, Y Enari, F Fang, H Fujii, C Fukunaga, M Fukushima, N Gabyshev, A Garmash, T Gershon, A Gordon, K Gotow, R Guo, J Haba, H Hamasaki, K Hara, T Hara, NC Hastings, H Hayashii, M Hazumi, EM Heenan, Higuchi, I, T Higuchi, H Hirano, T Hojo, Y Hoshi, K Hoshina, Hou, SR, WS Hou, SC Hsu, HC Huang, Y Igarashi, T Iijima, H Ikeda, K Inami, A Ishikawa, H Ishino, R Itoh, G Iwai, H Iwasaki, Y Iwasaki, DJ Jackson, P Jalocha, HK Jang, J Kaneko, JH Kang, JS Kang, N Katayama, H Kawai, H Kawai, N Kawamura, T Kawasaki, H Kichimi, DW Kim, H Kim, HJ Kim, H Kim, SK Kim, TH Kim, K Kinoshita, S Kobayashi, H Konishi, P Krokovny, R Kulasiri, S Kumar, A Kuzmin, YJ Kwon, JS Lange, G Leder, SH Lee, D Liventsev, RS Lu, T Matsubara, S Matsumoto, T Matsumoto, J MacNaughton, Y Mikami, K Miyabayashi, H Miyake, H Miyata, GR Moloney, S Mori, T Mori, A Murakami, T Nagamine, Y Nagasaka, Y Nagashima, T Nakadaira, E Nakano, M Nakao, JW Nam, S Narita, Z Natkaniec, K Neichi, S Nishida, O Nitoh, S Noguchi, T Nozaki, S Ogawa, T Ohshima, T Okabe, S Okuno, H Ozaki, P Pakhlov, H Palka, CS Park, CW Park, H Park, LS Peak, M Peters, LE Piilonen, E Prebys, JL Rodriguez, N Root, M Rozanska, K Rybicki, H Sagawa, Y Sakai, H Sakamoto, M Satapathy, A Satpathy, S Semenov, K Senyo, ME Sevior, H Shibuya, B Shwartz, S Stanic, A Sugi, A Sugiyama, K Sumisawa, T Sumiyoshi, K Suzuki, S Suzuki, SY Suzuki, SK Swain, T Takahashi, M Takita, K Tamai, N Tamura, J Tanaka, M Tanaka, Y Tanaka, Y Teramoto, M Tomoto, T Tomura, SN Tovey, K Trabelsi, T Tsuboyama, T Tsukamoto, S Uehara, K Ueno

PHYSICS LETTERS B 517 ( 3-4 ) 309 - 318 2001年10月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

We report measurements for two-body charmless hadronic B decays with an eta ' meson in the final state. Using 11.1 X 10(6) B (B) over bar pairs collected with the Belle detector, we find BF(B(+) --> eta 'K(+)) = (79(-11)(+12) +/- 9) X 10(-6) and BF(B(0) --> eta 'K(0)) = (55(-16)(+19) +/- 8) X 10(-6), where the first and second errors are statistical and systematic, respectively. No signal is observed in the mode B+ q'7r+, and we set a90% confidence level upper limit of BF(B+ - q'7r+) < 7 x 10-6. The CP asymmetry in B(<plus/minus>) --> eta 'K(+/-) decays is investigated and a limit at 90% confidence level of -0.20 < A(CP) < 0.32 is obtained. (C) 2001 Elsevier Science B.V. All rights reserved.

DOI： 10.1016/S0370-2693(01)01025-5

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Measurement of inclusive production of neutral pions from Y(4S) decays 査読

K Abe, K Abe, Adachi, I, BS Ahn, H Aihara, M Akatsu, G Alimonti, K Aoki, K Asai, Y Asano, T Aso, Aulchenko, V, T Aushev, AM Bakich, E Banas, W Bartel, S Behari, PK Behara, D Beiline, A Bondar, A Bozek, TE Browder, BCK Casey, P Chang, Y Chao, BG Cheon, SK Choi, Y Choi, Y Doi, J Dragic, A Drutskoy, S Eidelman, Y Enari, R Enomoto, E Fang, H Fujii, C Fukunaga, M Fukushima, A Garmash, A Gordon, K Gotow, H Guler, R Guo, J Haba, H Hamasaki, K Hanagaki, F Handa, K Hara, T Hara, T Haruyama, NC Hastings, K Hayashi, H Hayashii, M Hazumi, EM Heenan, Y Higasino, Higuchi, I, T Higuchi, H Hirano, T Hojo, Y Hoshi, WS Hou, SC Hsu, HC Huang, YC Huang, S Ichizawa, Y Igarashi, T Iijima, H Ikeda, K Ikeda, K Inami, A Ishikawa, H Ishino, R Itoh, G Iwai, H Iwasaki, Y Iwasaki, DJ Jackson, P Jalocha, HK Jang, M Jones, R Kagan, H Kakuno, J Kaneko, JH Kang, JS Kang, P Kapusta, N Katayama, H Kawai, N Kawamura, T Kawasaki, K Kichimi, DW Kim, H Kim, HJ Kim, H Kim, SK Kim, K Kinoshita, K Korotushenko, P Krokovny, R Kulasiri, S Kumar, T Kuniya, E Kurihara, A Kuzmin, YJ Kwon, JS Lange, MH Lee, SH Lee, HB Li, D Liventsev, RS Lu, A Manabe, T Matsubara, S Matsui, S Matsumoto, T Matsumoto, Y Mikami, K Misono, K Miyabayashi, H Miyake, H Miyata, LC Moffitt, GR Moloney, GF Moorhead, S Mori, A Murakami, T Nagamine, Y Nagasaka, Y Nagashima, T Nakadaira, E Nakano, M Nakao, JW Nam, S Narita, Z Natkaniec, K Neichi, S Nishida, O Nitoh, S Noguchi, T Nozaki, S Ogawa, T Ohshima, Y Ohshima, T Okabe, T Okazaki, S Okuno, SL Olsen, W Ostrowicz, H Ozaki, H Palka, CS Park, CW Park, H Park, LS Peak, M Peters, LE Piilonen, E Prebys, JL Rodriguez, N Root, M Rozanska, K Rybicki, J Ryuko, H Sagawa, Y Sakai, H Sakamoto, M Satapathy, A Satpathy, S Schrenk, S Semenov, K Senyo, ME Sevior, H Shibuya, B Shwartz, Sidorov, V, JB Singh, S Stanic, A Sugi, A Sugiyama, K Sumisawa, T Sumiyoshi, K Suzuki, S Suzuki, SY Suzuki, SK Swain, T Takahashi, F Takasaki, M Takita, K Tamai, N Tamura, J Tanaka, M Tanaka, Y Tanaka, GN Taylor, Y Teramoto, M Tomoto, T Tomura, SN Tovey, K Trabelsi, T Tsuboyama, Y Tsujita, T Tsukamoto, S Uehara, K Ueno, Y Unno, S Uno, Y Ushiroda, Y Usov, SE Vahsen, G Varner, KE Varvell, CC Wang, CH Wang, MZ Wang, TJ Wang, Y Watanabe, E Won, BD Yabsley, Y Yamada, M Yamaga, A Yamaguchi, H Yamamoto, H Yamaoka, Y Yamaoka, Y Yamashita, M Yamauchi, S Yanka, K Yoshida, Y Yusa, H Yuta, CC Zhang, J Zhang, Y Zheng, Zhilich, V, D Zontar

PHYSICAL REVIEW D 64 ( 7 ) 1 - 6 2001年10月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

Using the Belle detector operating at the KEKB e(+)e(-) storage ring, we have measured the mean multiplicity and momentum spectrum of neutral pions from the decays of the Y(4S) resonance. We measure a mean of 4.70 +/- 0.04 +/- 0.22 neutral pions per Y(4S) decay.

DOI： 10.1103/PhysRevD.64.072001

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Search for direct CP violation in B -> K pi decays 査読

K Abe, K Abe, R Abe, Adachi, I, BS Ahn, H Aihara, M Akatsu, Y Asano, T Aso, Aulchenko, V, T Aushev, AM Bakich, E Banas, S Behari, PK Behera, A Bondar, A Bozek, TE Browder, BCK Casey, P Chang, Y Chao, KF Chen, BG Cheon, R Chistov, SK Choi, Y Choi, LY Dong, J Dragic, A Drutskoy, S Eidelman, R Enomoto, F Fang, H Fujii, C Fukunaga, M Fukushima, A Garmash, A Gordon, K Gotow, R Guo, J Haba, H Hamasaki, K Hanagaki, F Handa, K Hara, T Hara, NC Hastings, H Hayashii, M Hazumi, EM Heenan, Higuchi, I, T Higuchi, H Hirano, T Hojo, T Hokuue, Y Hoshi, Hou, SR, WS Hou, SC Hsu, HC Huang, Y Igarashi, T Iijima, H Ikeda, K Inami, A Ishikawa, H Ishino, R Itoh, G Iwai, H Iwasaki, Y Iwasaki, DJ Jackson, P Jalocha, HK Jang, M Jones, JH Kang, JS Kang, P Kapusta, N Katayama, H Kawai, Y Kawakami, N Kawamura, T Kawasaki, H Kichimi, DW Kim, HJ Kim, HJ Kim, HW Kim, SK Kim, TH Kim, K Kinoshita, H Konishi, P Krokovny, R Kulasiri, S Kumar, E Kurihara, A Kuzmin, YJ Kwon, JS Lange, SH Lee, D Liventsev, RS Lu, D Marlow, T Matsubara, S Matsui, S Matsumoto, T Matsumoto, Y Mikami, K Miyabayashi, H Miyake, H Miyata, GR Moloney, T Mori, A Murakami, T Nagamine, Y Nagasaka, Y Nagashima, E Nakano, M Nakao, JW Nam, S Narita, Z Natkaniec, K Neichi, S Nishida, S Noguchi, T Nozaki, S Ogawa, T Ohshima, T Okabe, S Okuno, H Ozaki, P Pakhlov, H Palka, CS Park, CW Park, H Park, LS Peak, M Peters, LE Piilonen, E Prebys, N Root, M Rozanska, K Rybicki, J Ryuko, H Sagawa, Y Sakai, H Sakamoto, M Satapathy, A Satpathy, S Schrenk, S Semenov, K Senyo, ME Sevior, H Shibuya, B Shwartz, S Stanic, A Sugiyama, K Sumisawa, T Sumiyoshi, JI Suzuki, K Suzuki, S Suzuki, SY Suzuki, SK Swain, T Takahashi, F Takasaki, M Takita, K Tamai, N Tamura, J Tanaka, M Tanaka, Y Tanaka, GN Taylor, Y Teramoto, M Tomoto, T Tomura, SN Tovey, K Trabelsi, T Tsuboyama, T Tsukamoto, S Uehara, K Ueno, Y Unno, S Uno, Y Ushiroda, KE Varvell, CC Wang, CH Wang, JG Wang, MZ Wang, Y Watanabe, E Won, BD Yabsley, Y Yamada, M Yamaga, A Yamaguchi, H Yamamoto, Y Yamashita, M Yamauchi, S Yanaka, K Yoshida, Y Yusa, H Yuta, J Zhang, HW Zhao, Y Zheng, Zhilich, V, D Zontar

PHYSICAL REVIEW D 64 ( 7 ) 1 - 5 2001年10月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We search for direct CP violation in flavor specific B -->K pi decays by measuring the rate asymmetry between charge conjugate modes. The search is performed on a data sample of 11.1 x 10(6) B(B) over bar events recorded on the Y(4S) resonance by the Belle experiment at KEKB. We measure 90% confidence intervals in the partial rate asymmetry A(CP) of - 0.25<A(CP)(K(<plus/minus>) pi (+/-)) <0.37, - 0.40<A(CP)(K(+/-) pi (0))<0.36, and -0.53 <A(CP)(K(0)pi (+/-))<0.82. By combining the K(<plus/minus>) pi (+/-) and K(+/-) pi (0) final states, we conclude that -0.22 <A(CP)(K(<plus/minus>)(pi (+/-) +pi (0)))<0.25 at the 90% confidence level.

DOI： 10.1103/PhysRevD.64.071101

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Observation of Cabibbo suppressed B -> D(*)K- decays at Belle 査読

K. Abe, Belle Collaboration

PHYSICAL REVIEW LETTERS 87 ( 111801 ) 1 - 6 2001年8月

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevLett.87.101801

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その他リンク： http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevLett.87.111801/fulltext
Performance of the BELLE silicon vertex detector 査読

R Abe, H Aihara, G Alimonti, Y Asano, A Bakich, E Banas, A Bozek, T Browder, J Dragic, C Everton, C Fukunaga, A Gordon, H Guler, J Haba, K Hara, T Hara, N Hastings, M Hazumi, E Heenan, T Higuchi, T Hojo, H Ishino, G Iwai, P Jalocha, J Kaneko, P Kapusta, T Kawasaki, K Korotuschenko, JS Lange, Y Li, D Marlow, T Matsubara, H Hiyake, L Moffitt, G Moloney, S Mori, Y Nagashima, T Nakadaira, T Nakamura, Z Natkaniec, S Okuno, S Olsen, W Ostrowicz, H Palka, L Peak, M Rozanska, J Ryuko, M Sevior, K Shimada, K Sumisawa, S Stanic, R Stock, S Swain, H Tagomori, H Tajima, S Takahashi, F Takasaki, N Tamura, J Tanaka, M Tanaka, G Taylor, T Tomura, K Trabelsi, T Tsuboyama, Y Tsujita, G Varner, K Varvell, H Yamamoto, Y Watanabe, Y Yamada, M Yokoyama, H Zhao, D Zontar

IEEE TRANSACTIONS ON NUCLEAR SCIENCE 48 ( 4 ) 997 - 1001 2001年8月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC

Using 6.8 fb(-1) of data taken between October 1999 and July 2000, the performance of the silicon vertex detector (SVD) in the BELLE experiment is reviewed. The main purpose of the SVD is to make precise measurements of the B decay vertex position, which are essential for the observation of CP asymmetries. Excellent vertex resolution and a good detection efficiency are required for the SVD. Basic performance parameters such as signal pulse height, noise, strip yield, and intrinsic resolution are reported. The SVD performance parameters that are directly related to physics analysis such as track matching efficiency, impact parameter resolution, and vertex resolution are also shown.

DOI： 10.1109/23.958712

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Observation of large CP violation in the neutral B meson system 査読

K Abe, K Abe, R Abe, Adachi, I, BS Ahn, H Aihara, M Akatsu, G Alimonti, K Asai, M Asai, Y Asano, T Aso, Aulchenko, V, T Aushev, AM Bakich, E Banas, S Behari, PK Behara, D Beiline, A Bondar, A Bozek, TE Browder, BCK Casey, P Chang, Y Chao, KF Chen, BG Cheon, R Chistov, SK Choi, Y Choi, LY Dong, J Dragic, A Drutskoy, S Eidelman, Eiges, V, Y Enari, R Enomoto, CW Everton, F Fang, H Fujii, C Fukunaga, M Fukushima, N Gabyshev, A Garmash, TJ Gershon, A Gordon, K Gotow, H Guler, R Guo, J Haba, H Hamasaki, K Hanagaki, F Handa, K Hara, T Hara, NC Hastings, H Hayashii, M Hazumi, EM Heenan, Y Higasino, Higuchi, I, T Higuchi, T Hirai, H Hirano, T Hojo, T Hokuue, Y Hoshi, K Hoshina, Hou, SR, WS Hou, SC Hsu, HC Huang, Y Igarashi, T Iijima, H Ikeda, K Ikeda, K Inami, A Ishikawa, H Ishino, R Itoh, G Iwai, H Iwasaki, Y Iwasaki, DJ Jackson, P Jalocha, HK Jang, M Jones, R Kagan, H Kakuno, J Kaneko, JH Kang, JS Kang, P Kapusta, N Katayama, H Kawai, H Kawai, Y Kawakami, N Kawamura, T Kawasaki, H Kichimi, DW Kim, H Kim, HJ Kim, H Kim, SK Kim, TH Kim, K Kinoshita, S Kobayashi, S Koishi, H Konishi, K Korotushenko, P Krokovny, R Kulasiri, S Kumar, T Kuniya, E Kurihara, A Kuzmin, YJ Kwon, JS Lange, G Leder, MH Lee, SH Lee, C Leonidopoulos, YS Lin, D Liventsev, RS Lu, J MacNaughton, D Marlow, T Matsubara, S Matsui, S Matsumoto, T Matsumoto, Y Mikami, K Misono, K Miyabayashi, H Miyake, H Miyata, LC Moffitt, GR Moloney, GF Moorhead, S Mori, T Mori, A Murakami, T Nagamine, Y Nagasaka, Y Nagashima, T Nakadaira, T Nakamura, E Nakano, M Nakao, H Nakazawa, JW Nam, Z Natkaniec, K Neichi, S Nishida, O Nitoh, S Noguchi, T Nozaki, S Ogawa, T Ohshima, Y Ohshima, T Okagbe, T Okazaki, S Okuno, SL Olsen, H Ozaki, P Pakhlov, H Palka, CS Park, CW Park, H Park, LS Peak, M Peters, LE Piilonen, E Prebys, JL Rodriguez, N Root, M Rozanska, K Rybicki, J Ryuko, H Sagawa, Y Sakai, H Sakamoto, M Satapathy, A Satpathy, S Schrenk, S Semenov, K Senyo, Y Settai, ME Sevior, H Shibuya, B Shwartz, A Sidorov, S Stanic, A Sugi, A Sugiyama, K Sumisawa, T Sumiyoshi, JI Suzuki, K Suzuki, S Suzuki, SY Suzuki, SK Swain, H Tajima, T Takahashi, F Takasaki, M Takita, K Tamai, N Tamura, J Tanaka, M Tanaka, GN Taylor, Y Teramoto, M Tomoto, T Tomura, SN Tovey, K Trabelsi, T Tsuboyama, T Tsukamoto, S Uehara, K Ueno, M Unno, S Uno, Y Ushiroda, SE Vahsen, KE Varvell, CC Wang, CH Wang, JG Wang, MZ Wang, Y Watanabe, E Won, BD Yabsley, Y Yamada, M Yamaga, A Yamaguchi, H Yamamoto, T Yamanaka, Y Yamashita, M Yamauchi, S Yanaka, J Yashima, M Yokoyama, K Yoshida, Y Yusa, H Yuta, CC Zhang, J Zhang, HW Zhao, Y Zheng, Zhilich, V, D Zontar

PHYSICAL REVIEW LETTERS 87 ( 9 ) 1 - 7 2001年8月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We present a measurement of the standard model CP violation parameter sin2 phi (1) based on a 29.1 fb(-1) data sample collected at the Y(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. One neutral B meson is fully reconstructed as a J/psiK(S), psi (2S)K(S), X(c1)K(S), eta (c)K(S), J/psiK(L), or J/psiK*(0) decay and the flavor of the accompanying B meson is identified from its decay products. From the asymmetry in the distribution of the time intervals between the two B meson decay points, we determine sin2 phi (1) = 0.99 +/-0.14(stat) +/-0.06(syst). We conclude that we have observed CP violation in the neutral B meson system.

DOI： 10.1103/PhysRevLett.87.091802

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A measurement of the branching fraction for the inclusive B -> Xs gamma decays with the Belle detector 査読

K Abe, K Abe, Adachi, I, BS Ahn, H Aihara, M Akatsu, G Alimonti, K Aoki, K Asai, Y Asano, T Aso, Aulchenko, V, T Aushev, AM Bakich, E Banas, W Bartel, S Behari, PK Behera, D Beiline, A Bondar, A Bozek, TE Browder, BCK Casey, P Chang, Y Chao, BG Cheon, SK Choi, Y Choi, Y Doi, J Dragic, A Drutskoy, S Eidelman, Y Enari, R Enomoto, F Fang, H Fujii, C Fukunaga, M Fukushima, A Garmash, A Gordon, K Gotow, H Guler, R Guo, J Haba, H Hamasaki, K Hanagaki, F Handa, K Hara, T Hara, T Haruyama, NC Hastings, K Hayashi, H Hayashii, M Hazumi, EM Heenan, Y Higasino, Higuchi, I, T Higuchi, H Hirano, T Hojo, Y Hoshi, WS Hou, SC Hsu, HC Huang, S Ichizawa, Y Igarashi, T Iijima, H Ikeda, K Ikeda, K Inami, A Ishikawa, H Ishino, R Itoh, G Iwai, H Iwasaki, Y Iwasaki, DJ Jackson, P Jalocha, HK Jang, M Jones, R Kagan, H Kakuno, J Kaneko, JH Kang, JS Kang, P Kapusta, N Katayama, H Kawai, N Kawamura, T Kawasaki, H Kichimi, DW Kim, HJ Kim, HJ Kim, HW Kim, SK Kim, K Kinoshita, K Korotushenko, P Krokovny, R Kulasiri, S Kumar, T Kuniya, E Kurihara, A Kuzmin, YJ Kwon, JS Lange, MH Lee, SH Lee, HB Li, D Liventsev, RS Lu, A Manabe, T Matsubara, S Matsui, S Matsumoto, T Matsumoto, Y Mikami, K Misono, K Miyabayashi, H Miyake, H Miyata, LC Moffitt, GR Moloney, GF Moorhead, S Mori, A Murakami, T Nagamine, Y Nagasaka, Y Nagashima, T Nakadaira, E Nakano, M Nakao, JW Nam, S Narita, Z Natkaniec, K Neichi, S Nishida, O Nitoh, S Noguchi, T Nozaki, S Ogawa, T Ohshima, Y Ohshima, T Okabe, T Okazaki, S Okuno, SL Olsen, W Ostrowicz, H Ozaki, H Palka, CS Park, CW Park, H Park, LS Peak, J Ryuko, H Sagawa, Y Sakai, H Sakamoto, M Satapathy, A Satpathy, S Schrenk, S Semenov, K Senyo, ME Sevior, H Shibuya, B Shwartz, Sidorov, V, JB Singh, S Stanic, A Sugi, A Sugiyama, K Sumisawa, T Sumiyoshi, K Suzuki, S Suzuki, SY Suzuki, SK Swain, H Tajima, T Takahashi, F Takasaki, M Takita, K Tamai, N Tamura, J Tanaka, M Tanaka, Y Tanaka, GN Taylor, Y Teramoto, M Tomoto, T Tomura, SN Tovey, K Trabelsi, T Tsuboyama, Y Tsujita, T Tsukamoto, S Uehara, K Ueno, N Ujiie, Y Unno, S Uno, Y Ushiroda, Y Usov, SE Vahsen, G Varner, KE Varvell, CC Wang, CH Wang, MZ Wang, TJ Wang, Y Watanabe, E Won, BD Yabsley, Y Yamada, M Yamaga, A Yamaguchi, H Yamamoto, H Yamaoka, Y Yamaoka, Y Yamaskita, M Yamauchi, S Yanaka, M Yokoyama, K Yoshida, Y Yusa, H Yuta, CC Zhang, J Zhang, Y Zheng, Zhilich, V, D Zontar

PHYSICS LETTERS B 511 ( 2-4 ) 151 - 158 2001年7月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

We have measured the branching fraction of the inclusive radiative B meson decay B -->X(s)gamma to be Br(B --> X(s)gamma) = (3.36 +/- 0.53(stat) +/- 0.42(sys)(-0.54)(+0.50)(th)) x 10(-4). The result is based on a sample of 6.07 x 10(6) B (B) over bar events collected at the gamma (4S) resonance with the Belie detector at the KEKB asymmetric e(+)e(-) storage ring. (C) 2001 Elsevier Science B.V. All rights reserved.

DOI： 10.1016/S0370-2693(01)00626-8

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Radiation hardness of VA1 with submicron process technology 査読

M Yokoyama, H Aihara, M Hazumi, H Ishino, J Kaneko, Y Li, D Marlow, S Mikkelsen, E Nygard, H Tajima, J Talebi, G Varner, H Yamamoto

IEEE TRANSACTIONS ON NUCLEAR SCIENCE 48 ( 3 ) 440 - 443 2001年6月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC

We have studied the radiation hardness of the VA1, a Viking-architecture preamplifier VLSI chip. Large-scale integrated (LSI) samples are fabricated in 0.8 and 0.35 mum process technologies to improve the radiation hardness of the LSI for the Belle silicon vertex detector upgrade.We have observed significant improvement of the radiation hardness with 0.8-mum technology compared to 1.2-mum technology. Little degradation of noise and gain is observed up to a total dose of 20 Mrd for the VA1 fabricated in the 0.35-mum technology. We find that the radiation hardness improves with a scaling of better than t(OX)(-6) (t(OX): oxide thickness). Basic parameters of MOSFETs are also studied to understand the mechanism of radiation damage in the VA1.

DOI： 10.1109/23.940096

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Measurement of B-d(0)-(B)over-bar(d)(0) mixing rate from the time evolution of dilepton events at the Upsilon(4S) 査読

K Abe, K Abe, Adachi, I, BS Ahn, H Aihara, M Akatsu, G Alimonti, K Aoki, K Asai, M Asai, Y Asano, T Aso, Aulchenko, V, T Aushev, AM Bakich, E Banas, S Behari, PK Behera, D Beiline, A Bondar, A Bozek, TE Browder, BCK Casey, P Chang, Y Chao, BG Cheon, SK Choi, Y Choi, Y Doi, J Dragic, S Eidelman, Y Enari, R Enomoto, CW Everton, F Fang, H Fujii, Y Fujita, C Fukunaga, M Fukushima, A Garmash, A Gordon, K Gotow, H Guler, R Guo, J Haba, T Haji, H Hamasaki, K Hanagaki, F Handa, K Hara, T Hara, NC Hastings, K Hayashi, H Hayashii, M Hazumi, EM Heenan, Higuchi, I, T Higuchi, T Hirai, H Hirano, T Hojo, Y Hoshi, WS Hou, SC Hsu, HC Huang, YC Haung, S Ichizawa, Y Igarashi, T Iijima, H Ikeda, K Ikeda, K Inami, Y Inoue, A Ishikawa, H Ishino, R Itoh, G Iwai, H Iwasaki, Y Iwasaki, DJ Jackson, P Jalocha, HK Jang, M Jones, R Kagan, H Kakuno, J Kaneko, JH Kang, JS Kang, P Kapusta, K Kasami, N Katayama, H Kawai, M Kawai, N Kawamura, T Kawasaki, H Kichimi, DW Kim, H Kim, HJ Kim, H Kim, SK Kim, K Kinoshita, S Kobayashi, S Koike, S Koishi, H Konishi, K Korotushenko, P Krokovny, R Kulasiri, S Kumar, T Kuniya, E Kurihara, A Kuzmin, YJ Kwon, MH Lee, SH Lee, C Leonidopoulos, HB Li, RS Lu, Y Makida, A Manabe, D Marlow, T Matsubara, T Matsuda, S Matsui, S Matsumoto, T Matsumoto, K Miyabayashi, H Miyake, H Miyata, LC Moffitt, A Mohapatra, GR Moloney, GF Moorhead, S Mori, T Mori, A Murakami, T Nagamine, Y Nagasaka, Y Nagashima, T Nakadaira, E Nakano, M Nakao, H Nakazawa, JW Nam, S Narita, Z Natkaniec, K Neichi, S Nishida, O Nitoh, S Noguchi, T Nozaki, S Ogawa, T Ohshima, Y Ohshima, T Okabe, T Okazaki, S Okuno, SL Olsen, H Ozaki, P Pakhlov, H Palka, CS Park, CW Park, H Park, LS Peak, M Peters, LE Piilonen, E Prebys, J Raaf, JL Rodriguez, N Root, M Rozanska, K Rybicki, J Ryuko, H Sagawa, Y Sakai, H Sakamoto, H Sakaue, M Satapathy, N Sato, A Satpathy, S Schrenk, S Semenov, ME Sevior, H Shibuya, B Shwartz, A Sidorov, Sidorov, V, S Stanic, A Sugi, A Sugiyama, K Sumisawa, T Sumiyoshi, J Suzuki, K Suzuki, S Suzuki, SY Suzuki, SK Swain, H Tajima, T Takahashi, F Takasaki, M Takita, K Tamai, N Tamura, J Tanaka, M Tanaka, Y Tanaka, GN Taylor, Y Teramoto, M Tomoto, T Tomura, SN Tovey, K Trabelsi, T Tsuboyama, Y Tsujita, T Tsukamoto, T Tsukamoto, S Uehara, K Ueno, N Ujiie, Y Unno, S Uno, Y Ushiroda, Y Usov, SE Vahsen, G Varner, KE Varvell, CC Wang, CH Wang, MZ Wang, TJ Wang, Y Watanabe, E Won, BD Yabsley, Y Yamada, M Yamaga, A Yamaguchi, H Yamaguchi, H Yamaoka, Y Yamaoka, Y Yamashita, M Yamauchi, S Yanaka, M Yokoyama, K Yoshida, Y Yusa, H Yuta, CC Zhang, HW Zhao, Y Zheng, Zhilich, V, D Zontar

PHYSICAL REVIEW LETTERS 86 ( 15 ) 3228 - 3232 2001年4月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

We report a determination of the B-d(n)-N-n(d) mixing parameter Deltam(d) based on the time evolution of dilepton yields in Y (4S) decays. The measurement is based on a 5.9 fb(-1) data sample collected by the Belie detector at KEKB. The proper-time difference distributions for same-sign and opposite-sign dilepton events are simultaneously fitted to an expression containing Deltam(d) as a free parameter. Using both muons and electrons, we obtain Deltam(d) = 0.463 +/- 0.008 (stat) +/- 0.016 (syst) ps(-1). This is the first determination of Deltam(d) from time evolution measurements at the Y (4S). We also place limits on possible CPT violations.

DOI： 10.1103/PhysRevLett.86.3228

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Measurement of the CP violation parameter sin2 phi(1) in B-d(0) meson decays 査読

A Abashian, K Abe, K Abe, Adachi, I, BS Ahn, H Aihara, M Akatsu, G Alimonti, K Aoki, K Asai, M Asai, Y Asano, T Aso, Aulchenko, V, T Aushev, AM Bakich, E Banas, S Behari, PK Behera, D Beiline, A Bondar, A Bozek, TE Browder, BCK Casey, P Chang, Y Chao, BG Cheon, SK Choi, Y Choi, Y Doi, J Dragic, A Drutskoy, S Eidelman, Y Enari, R Enomoto, CW Everton, F Fang, H Fujii, K Fujimoto, Y Fujita, C Fukunaga, M Fukushima, A Garmash, A Gordon, K Gotow, H Guler, R Guo, J Haba, T Haji, H Hamasaki, K Hanagaki, E Handa, K Hara, T Hara, T Haruyama, NC Hastings, K Hayashi, H Hayashii, M Hazumi, EM Heenan, Y Higashi, Y Higashino, Higuchi, I, T Higuchi, T Hirai, H Hirano, M Hirose, T Hojo, Y Hoshi, K Hoshina, WS Hou, SC Hsu, HC Huang, YC Huang, S Ichizawa, Y Igarashi, T Iijima, H Ikeda, K Ikeda, K Inami, Y Inoue, A Ishikawa, H Ishino, R Itoh, G Iwai, M Iwai, M Iwamoto, H Iwasaki, Y Iwasaki, DJ Jackson, P Jalocha, HK Jang, M Jones, R Kagan, H Kakuno, J Kaneko, JH Kang, JS Kang, P Kapusta, K Kasami, N Katayama, H Kawai, H Kawai, M Kawai, N Kawamura, T Kawasaki, H Kichimi, DW Kim, H Kim, HJ Kim, H Kim, SK Kim, K Kinoshita, K Kobayashi, S Koike, S Koishi, Y Kondo, H Konishi, K Korotushenko, P Krokovny, R Kulasiri, S Kumar, T Kuniya, E Kurihara, A Kuzmin, YJ Kwon, MH Lee, SH Lee, C Leonidopoulos, HB Li, RS Lu, Y Makida, A Manabe, D Marlow, K Miyabayashi, H Miyake, H Miyata, LC Moffitt, A Mohapatra, G Moloney, GF Moorhead, N Moran, S Mori, T Mori, A Murakami, T Nagamine, Y Nagasaka, Y Nagashima, T Nakadaira, T Nakamura, E Nakano, M Nakao, H Nakazawa, JW Nam, S Narita, Z Natkaniec, K Neichi, S Nishida, O Nitoh, S Noguchi, T Nozaki, S Ogawa, T Ohshima, Y Ohshima, T Okabe, T Okazaki, S Okuno, SL Olsen, W Ostrowicz, H Ozaki, P Pakhlov, H Palka, CS Park, CW Park, H Park, LS Peak, M Peters, LE Piilonen, E Prebys, JL Rodriguez, N Root, H Rozanska, K Rybicki, J Ryuko, H Sagawa, S Saitoh, Y Sakai, H Sakamoto, H Sakaue, M Satapathy, N Sato, A Satpathy, S Schrenk, S Semenov, Y Settai, ME Sevior, H Shibuya, S Shwartz, A Sidorov, Sidorov, V, JB Singh, S Stanic, A Sugi, A Sugiyama, K Sumisawa, T Sumiyoshi, J Suzuki, JI Suzuki, K Suzuki, S Suzuki, SY Suzuki, SK Swain, H Tajima, T Takahashi, F Takasaki, M Takita, K Tamai, N Tamura, J Tanaka, M Tanaka, Y Tanaka, GN Taylor, Y Teramoto, M Tomoto, T Tomura, SN Tovey, K Trabelsi, T Tsuboyama, Y Tsujita, T Tsukamoto, T Tsukamoto, S Uehara, K Ueno, N Ujiie, Y Unno, S Uno, Y Ushiroda, Y Usov, SE Vahsen, G Varner, KE Varvell, CC Wang, CH Wang, MZ Wang, TJ Wang, Y Watanabe, E Won, BD Yabsley, Y Yamada, M Yamaga, A Yamaguchi, H Yamaguchi, H Yamamoto, T Yamanaka, H Yamaoka, Y Yamaoka, Y Yamashita, M Yamauchi, S Yanaka, M Yokoyama, K Yoshida, Y Yusa, H Yuta, CC Zhang, HW Zhao, J Zhang, Y Zheng, Zhilich, V, D Zontar

PHYSICAL REVIEW LETTERS 86 ( 12 ) 2509 - 2514 2001年3月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMERICAN PHYSICAL SOC

We present a measurement of the standard model CP violation parameter sin2 phi (1) (also known as sin2 beta) based on a 10.5 fb(-1) data sample collected at the Y (4S) resonance with the Belie detector at the KEKB asymmetric e(+)e(-) collider. One neutral B meson is reconstructed in the J/psi K (S), psi (2S)K (S), chi K-c1 (S), eta K-c (s), J/psi K (L), or J/psi pi (0) CP-eigenstate decay channel and the flavor of the accompanying B meson is identified from its charged particle decay products. From the asymmetry in the distribution of the time interval between the two B-meson decay paints, we determine sin2 phi (1) = 0.58(-0.34)(+0.32)(stat)(+0.09)(-0.10)(syst).

DOI： 10.1103/PhysRevLett.86.2509

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Solar B-8 and hep neutrino measurements from 1258 days of Super-Kamiokande data 査読

Fukuda, S., Fukuda, Y., Ishitsuka, M., Itow, Y., Kajita, T., Kameda, J., Kaneyuki, K., Kobayashi, K., Koshio, Y., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Okada, A., Sakurai, N., Shiozawa, M., Suzuki, Y., Takeuchi, H., Takeuchi, Y., Toshito, T., Totsuka, Y., Yamada, S., Desai, S., Earl, M., Kearns, E., Messier, M.D., Scholberg, K., Stone, J.L., Sulak, L.R., Walter, C.W., Goldhaber, M., Barszczak, T., Casper, D., Gajewski, W., Kropp, W.R., Mine, S., Liu, D.W., Price, L.R., Smy, M.B., Sobel, H.W., Vagins, M.R., Ganezer, K.S., Keig, W.E., Ellsworth, R.W., Tasaka, S., Kibayashi, A., Learned, J.G., Matsuno, S., Takemori, D., Hayato, Y., Ishii, T., Kobayashi, T., Nakamura, K., Obayashi, Y., Oyama, Y., Sakai, A., Sakuda, M., Kohama, M., Suzuki, A.T., Inagaki, T., Nakaya, T., Nishikawa, K., Haines, T.J., Blaufuss, E., Dazeley, S., Lee, K.B., Svoboda, R., Chen, M.L., Goodman, J.A., Guillian, G., Sullivan, G.W., Turcan, D., Habig, Alec, Hill, J., Jung, C.K., Martens, K., Malek, M., Mauger, C., McGrew, C., Sharkey, E., Viren, B., Yanagisawa, C., Mitsuda, C., Miyano, K., Saji, C., Shibata, T., Kajiyama, Y., Nagashima, Y., Nitta, K., Takita, M., Yoshida, M., Kim, H.I., Kim, S.B., Yoo, J., Okazawa, H., Ishizuka, T., Etoh, M., Gando, Y., Hasegawa, T., Inoue, K., Ishihara, K., Maruyama, T., Shirai, J., Suzuki, A., Koshiba, M., Hatakeyama, Y., Ichikawa, Y., Koike, M., Nishijima, K., Fujiyasu, H., Ishino, H., Morii, M., Watanabe, Y., Golebiewska, U., Kielczewska, D., Boyd, S.C., Stachyra, A.L., Wilkes, R.J., Young, K.K.

Phys.Rev.Lett. 86 ( 25 ) 5651 - 5655 2001年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevLett.86.5651

Web of Science

arXiv

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N-16 as a calibration source for Super-Kamiokande

Blaufuss, E., Guillian, G., Fukuda, Y., Fukuda, S., Ishitsuka, M., Itow, Y., Kajita, T., Kameda, J., Kaneyuki, K., Kobayashi, K., Kobayashi, Y., Koshio, Y., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Obayashi, Y., Okada, A., Okumura, K., Sakurai, N., Shiozawa, M., Suzuki, Y., Takeuchi, H., Takeuchi, Y., Toshito, T., Totsuka, Y., Yamada, S., Earl, M., Habig, Alec, Kearns, E., Messier, M.D., Scholberg, K., Stone, J.L., Sulak, L.R., Walter, C.W., Goldhaber, M., Barszczak, T., Casper, D., Gajewski, W., Kropp, W.R., Mine, S., Price, L.R., Smy, M., Sobel, H.W., Vagins, M.R., Ganezer, K.S., Keig, W.E., Ellsworth, R.W., Tasaka, S., Kibayashi, A., Learned, J.G., Matsuno, S., Takemori, D., Hayato, Y., Ishii, T., Kobayashi, T., Nakamura, K., Oyama, Y., Sakai, A., Sakuda, M., Sasaki, Osamu, Echigo, S., Kohama, M., Suzuki, A.T., Inagaki, T., Nishikawa, K., Haines, T.J., Kim, B.K., Sanford, R., Svoboda, R., Chen, M.L., Goodman, J.A., Sullivan, G.W., Hill, J., Jung, C.K., Martens, K., Malek, M., Mauger, C., McGrew, C., Sharkey, E., Viren, B., Yanagisawa, C., Kirisawa, M., Inaba, S., Mitsuda, C., Miyano, K., Okazawa, H., Saji, C., Takahashi, M., Takahata, M., Nagashima, Y., Nitta, K., Takita, M., Yoshida, M., Kim, S.B., Etoh, M., Gando, Y., Hasegawa, T., Inoue, K., Ishihara, K., Maruyama, T., Shirai, J., Suzuki, A., Koshiba, M., Hatakeyama, Y., Ichikawa, Y., Koike, M., Nishijima, K., Fujiyasu, H., Ishino, H., Morii, M., Watanabe, Y., Golebiewska, U., Kielczewska, D., Boyd, S.C., Stachyra, A.L., Wilkes, R.J., Young, K.K.

Nucl.Instrum.Meth.A 458 638 - 649 2001年

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掲載種別：研究論文（学術雑誌）

The decay of16N is used to cross check the absolute energy scale calibration for solar neutrinos established by the electron linear accelerator (LINAC). A deuterium-tritium neutron generator was employed to create16N via the (n,p) reaction on16O in the water of the detector. This technique is isotropic and has different systematic uncertainties than the LINAC. The results from this high-statistics data sample agree with the absolute energy scale of the LINAC to better than 1%. A natural source of16N from the capture of μ-on16O, which is collected as a background to the solar neutrino analysis, is also discussed.

DOI： 10.1016/S0168-9002(00)00900-1

Scopus

arXiv

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Constraints on neutrino oscillations using 1258 days of Super-Kamiokande solar neutrino data 査読

Fukuda, S., Fukuda, Y., Ishitsuka, M., Itow, Y., Kajita, T., Kameda, J., Kaneyuki, K., Kobayashi, K., Koshio, Y., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Okada, A., Sakurai, N., Shiozawa, M., Suzuki, Y., Takeuchi, H., Takeuchi, Y., Toshito, T., Totsuka, Y., Yamada, S., Desai, S., Earl, M., Kearns, E., Messier, M.D., Scholberg, K., Stone, J.L., Sulak, L.R., Walter, C.W., Goldhaber, M., Barszczak, T., Casper, D., Gajewski, W., Kropp, W.R., Mine, S., Liu, D., Price, L.R., Smy, M.B., Sobel, H.W., Vagins, M.R., Ganezer, K.S., Keig, W.E., Ellsworth, R.W., Tasaka, S., Kibayashi, A., Learned, J.G., Matsuno, S., Takemori, D., Hayato, Y., Ishii, T., Kobayashi, T., Nakamura, K., Obayashi, Y., Oyama, Y., Sakai, A., Sakuda, M., Kohama, M., Suzuki, A.T., Inagaki, T., Nakaya, T., Nishikawa, K., Haines, T.J., Blaufuss, E., Dazeley, S., Lee, K.B., Svoboda, R., Chen, M.L., Goodman, J.A., Guillian, G., Sullivan, G.W., Turcan, D., Habig, Alec, Hill, J., Jung, C.K., Martens, K., Malek, M., Mauger, C., McGrew, C., Sharkey, E., Viren, B., Yanagisawa, C., Mitsuda, C., Miyano, K., Saji, C., Shibata, T., Kajiyama, Y., Nagashima, Y., Nitta, K., Takita, M., Yoshida, M., Kim, H.I., Kim, S.B., Yoo, J., Okazawa, H., Ishizuka, T., Etoh, M., Gando, Y., Hasegawa, T., Inoue, K., Ishihara, K., Maruyama, T., Shirai, J., Suzuki, A., Koshiba, M., Hatakeyama, Y., Ichikawa, Y., Koike, M., Nishijima, K., Fujiyasu, H., Ishino, H., Morii, M., Watanabe, Y., Golebiewska, U., Kielczewska, D., Boyd, S.C., Stachyra, A.L., Wilkes, R.J., Young, K.K.

Phys.Rev.Lett. 86 ( 25 ) 5656 - 5660 2001年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevLett.86.5656

Web of Science

arXiv

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Detection of accelerator produced neutrinos at a distance of 250-km 査読

Ahn, S.H, An, S, Aoki, S, Berns, H.G, Bhang, H.C, Boyd, S, Casper, D, Chikamatsu, T, Choi, J.H, Echigo, S, Etoh, M, Fujii, K, Fukuda, S, Fukuda, Y, Gajewski, W, Golebiewska, U, Hara, T, Hasegawa, T, Hayato, Y, Hill, J, Hong, S.J, Ieiri, M, Inada, T, Inagaki, T, Ishida, T, Ishii, H, Ishii, T, Ishino, H, Ishitsuka, M, Itow, Y, Iwashita, T, Jang, H.I, Jang, J.S, Jeon, E.J, Jeong, E.M, Jung, C.K, Kadowaki, T, Kajita, T, Kameda, J, Kaneyuki, K, Kato, I, Kato, Y, Kearns, E, Kenmochi, S, Khang, B.H, Kibayashi, A, Kielczewska, D, Kim, B.J, Kim, C.O, Kim, H.I, Kim, J.H, Kim, J.Y, Kim, S.B, Kishi, S, Kitamura, M, Kobayashi, K, Kobayashi, T, Kobayashi, Y, Kohama, M, Koo, D.G, Koshio, Y, Kropp, W, Kume, G, Kusano, E, Learned, J.G, Lee, H.K, Lee, J.W, Lee, S.B, Lim, I.T, Lim, S.H, Maesaka, H, Martens, K, Maruyama, T, Matsuno, S, Mauger, C, McGrew, C, Minakawa, M, Mine, S, Miura, M, Miyamoto, S, Miyano, K, Moriyama, S, Mukai, S, Nakahata, M, Nakamura, K, Nakamura, M, Nakano, I, Nakaya, T, Nakayama, S, Nakayoshi, K, Nishijima, K, Nishikawa, K, Nishiyama, S, Noda, S, Noumi, H, Obayashi, Y, Oh, J.K, Okada, A, Onchi, M, Otaki, T, Oyama, Y, Pac, M.Y, Park, H, Park, S.H, Park, S.K, Sakai, A, Sakuda, M, Sakurai, N, Sasao, N, Sato, K, Scholberg, K, Seo, E, Sharkey, E, Shiino, K, Shima, A, Shiozawa, M, So, H, Sobel, H, Stachyra, A, Stone, J.L, Sulak, L.R, Suzuki, A, Suzuki, Y, Suzuki, Y, Takasaki, M, Takatsuki, M, Takenaka, K, Takeuchi, H, Takeuchi, Y, Tamura, N, Tanaka, K.H, Tanaka, Y, Tashiro, K, Tauchi, K, Toshito, T, Totsuka, Y, Tumakov, V, Umeda, T, Vagins, M, Walter, C.W, Wilkes, R.J, Yamada, S, Yamaguchi, T, Yamanoi, Y, Yanagisawa, C, Yokoyama, H, Yokoyama, H, Yoo, J, Yoshida, M, You, S.Y

Phys.Lett.B 511 ( 2-4 ) 178 - 184 2001年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1016/S0370-2693(01)00647-5

Web of Science

arXiv

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Tau Neutrinos Favored over Sterile Neutrinos in Atmospheric Muon Neutrino Oscillations

S. Fukuda, Y. Fukuda, M. Ishitsuka, Y. Itow, T. Kajita, J. Kameda, K. Kaneyuki, K. Kobayashi, Y. Koshio, M. Miura, S. Moriyama, M. Nakahata, S. Nakayama, Y. Obayashi, A. Okada, K. Okumura, N. Sakurai, M. Shiozawa, Y. Suzuki, H. Takeuchi, Y. Takeuchi, T. Toshito, Y. Totsuka, S. Yamada, M. Earl, A. Habig, E. Kearns, M. D. Messier, K. Scholberg, J. L. Stone, L. R. Sulak, C. W. Walter, M. Goldhaber, T. Barszczak, D. Casper, W. Gajewski, W. R. Kropp, S. Mine, L. R. Price, M. Smy, H. W. Sobel, M. R. Vagins, K. S. Ganezer, W. E. Keig, R. W. Ellsworth, S. Tasaka, A. Kibayashi, J. G. Learned, S. Matsuno, D. Takemori, Y. Hayato, T. Ishii, T. Kobayashi, K. Nakamura, Y. Oyama, A. Sakai, M. Sakuda, O. Sasaki, M. Kohama, A. T. Suzuki, T. Inagaki, K. Nishikawa, T. J. Haines, E. Blaufuss, B. K. Kim, R. Sanford, R. Svoboda, M. L. Chen, J. A. Goodman, G. Guillian, G. W. Sullivan, J. Hill, C. K. Jung, K. Martens, M. Malek, C. Mauger, C. McGrew, E. Sharkey, B. Viren, C. Yanagisawa, M. Kirisawa, S. Inaba, C. Mitsuda, K. Miyano, H. Okazawa, C. Saji, M. Takahashi, M. Takahata, Y. Nagashima, K. Nitta, M. Takita, M. Yoshida, S. B. Kim, T. Ishizuka, M. Etoh, Y. Gando, T. Hasegawa, K. Inoue, K. Ishihara, T. Maruyama, J. Shirai, A. Suzuki, M. Koshiba, Y. Hatakeyama, Y. Ichikawa, M. Koike, K. Nishijima, H. Fujiyasu, H. Ishino, M. Morii, Y. Watanabe, U. Golebiewska, D. Kielczewska, S. C. Boyd, A. L. Stachyra, R. J. Wilkes, K. K. Young

Physical Review Letters 85 ( 19 ) 3999 - 4003 2000年11月

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出版者・発行元：American Physical Society (APS)

DOI： 10.1103/physrevlett.85.3999

DOI： 10.1103/physrevd.77.052001_references_DOI_GAkhcbBRdwsggp8lbQzrnnHOcDC

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その他リンク： http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevLett.85.3999/fulltext
The BELLE silicon vertex detector 査読

G Alimonti, H Aihara, J Alexander, Y Asano, A Bakich, A Bozek, E Banas, T Browder, J Dragic, C Fukunaga, A Gordon, H Guler, C Everton, E Heenan, J Haba, M Hazumi, N Hastings, T Hara, T Hojo, T Higuchi, G Iwai, H Ishino, P Jalocha, K Korotuschenko, J Kaneko, P Kapusta, T Kawasaki, JS Lange, Y Li, D Marlow, G Moloney, L Moffitt, S Mori, T Matsubara, T Nakadaira, T Nakamura, Z Natkaniec, S Okuno, S Olsen, W Ostrowicz, H Palka, LS Peak, J Ryuko, M Rozanska, M Sevior, J Shimada, K Sumisawa, R Stock, S Stanic, S Swain, G Taylor, F Takasaki, H Tajima, K Trabelsi, N Tamura, J Tanaka, M Tanaka, S Takahashi, T Tomura, T Tsuboyama, Y Tsujita, G Varner, KE Varvell, Y Watanabe, H Yamamoto, Y Yamada, M Yokoyama, H Zhao, D Zontar

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 453 ( 1-2 ) 71 - 77 2000年10月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

A silicon vertex detector has been developed for the BELLE experiment at the KEK B-factory to be used to determine the relative displacements of B-meson decay vertices for CP violation measurements. The device has been successfully installed and operated with high-luminosity beam conditions. The average strip yield is larger than 96%, including the preamplifier electronics yield and the detector is currently working stably with a signal-to-noise ratio of 17-40. The measured impact parameter resolution agrees with expectations based on Monte Carlo simulations, and the measured D-0 lifetime is in good agreement with the particle data roup's average of other measurements. Several B --> J/psiK events produced at the Y(4S) resonance have been detected and separate decay vertices have been found. (C) 2000 Elsevier Science B.V. All rights reserved.

DOI： 10.1016/S0168-9002(00)00608-2

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Design, construction, and operation of SciFi tracking detector for K2K experiment 査読

A Suzuki, H Park, S Aoki, S Echigo, K Fujii, T Hara, T Iwashita, M Kitamura, M Kohama, G Kume, M Onchi, T Otaki, K Sato, M Takatsuki, K Takenaka, Y Tanaka, K Tashiro, T Inagaki, Kato, I, S Mukai, T Nakaya, K Nishikawa, N Sasao, A Shima, H Yokoyama, T Chikamatsu, Y Hayato, T Ishida, T Ishii, H Ishino, EJ Jeon, T Kobayashi, SB Lee, K Nakamura, Y Oyama, A Sakai, M Sakuda, Tumakov, V, S Fukuda, Y Fukuda, M Ishizuka, Y Itow, T Kajita, J Kameda, K Kaneyuki, K Kobayashi, Y Kobayashi, Y Koshio, M Miura, S Moriyama, M Nakahata, S Nakayama, Y Obayashi, A Okada, N Sakurai, M Shiozawa, Y Suzuki, H Takeuchi, Y Takeuchi, Y Totsuka, T Toshito, S Yamada, K Miyano, M Nakamura, N Tamura, Nakano, I, M Yoshida, T Kadowaki, S Kishi, H Yokoyama, T Maruyama, M Etoh, K Nishijima, HC Bhang, BH Khang, BJ Kim, HI Kim, JH Kim, SB Kim, H So, JH Yoo, JH Choi, HI Jang, JS Jang, JY Kim, IT Lim, MY Pac, E Kearns, K Scholberg, JL Stone, LR Sulak, CW Walter, D Casper, W Gajewski, W Kropp, S Mine, H Sobel, M Vagins, S Matsuno, J Hill, CK Jung, K Martens, C Mauger, C McGrew, E Sharkey, C Yanagisawa, H Berns, S Boyd, J Wilkes, D Kielczewska, U Golebiewska

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 453 ( 1-2 ) 165 - 176 2000年10月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

We describe the construction and performance of a scintillating fiber detector used in the near detector for the K2K (KEK to Kamioka, KEK E362) long baseline neutrino oscillation experiment. The detector uses 3.7 m long and 0.692 mm diameter scintillating fiber coupled to image-intensifier tubes (IIT), and a CCD camera readout system. Fiber sheet production and detector construction beg-an in 1997, and the detector was commissioned in March 1999. Results from the first K2K runs confirm good initial performance: position resolution is estimated to be about 0.8 mm, and track finding efficiency is 98 +/- 2% for long tracks (i.e., those which intersect more than 5 fiber planes). The hit efficiency was estimated to be 92 +/- 2% using cosmic-ray muons, after noise reduction at the offline stage. The possibility of using the detector for particle identification is also discussed. (C) 2000 Published by Elsevier Science B.V. All rights reserved.

DOI： 10.1016/S0168-9002(00)00624-0

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Development of front-end electronics for Belle SVD upgrades 査読

Aihara H, Hazumi M, Ishino H, Kaneko J, Li Y, Marlow D, Mikkelsen S, Nguyen D, Nygaard E, Tajima H, Talebi J, Varner G, Yamamoto H, Yokoyama M

IEEE Nuclear Science Symposium and Medical Imaging Conference 2 2000年

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Scopus

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その他リンク： http://orcid.org/0000-0003-2742-0251
Observation of the east - west anisotropy of the atmospheric neutrino flux 査読

Futagami, T., Fukuda, Y., Hayakawa, T., Ichihara, E., Inoue, K., Ishino, H., Itow, Y., Kajita, T., Kameda, J., Kasuga, S., Kobayashi, K., Kobayashi, Y., Koshio, Y., Miura, M., Nakahata, M., Nakayama, S., Obayashi, Y., Okada, A., Okumura, K., Sakurai, N., Shiozawa, M., Suzuki, Y., Takeuchi, H., Takeuchi, Y., Totsuka, Y., Yamada, S., Earl, M., Habig, Alec, Kearns, E., Messier, M.D., Scholberg, K., Stone, J.L., Sulak, L.R., Walter, C.W., Goldhaber, M., Barszczak, T., Casper, D., Gajewski, W., Kropp, W.R., Mine, S., Price, L.R., Smy, M., Sobel, H.W., Vagins, M.R., Ganezer, K.S., Keig, W.E., Ellsworth, R.W., Tasaka, S., Kibayashi, A., Learned, J.G., Matsuno, S., Stenger, V.J., Takemori, D., Ishii, T., Kanzaki, J., Kobayashi, T., Nakamura, K., Nishikawa, K., Oyama, Y., Sakai, A., Sakuda, M., Sasaki, Osamu, Echigo, S., Kohama, M., Suzuki, A.T., Haines, T.J., Blaufuss, E., Kim, B.K., Sanford, R., Svoboda, R., Chen, M.L., Goodman, J.A., Sullivan, G.W., Hill, J., Jung, C.K., Martens, K., Mauger, C., McGrew, C., Sharkey, E., Viren, B., Yanagisawa, C., Doki, W., Kirisawa, M., Inaba, S., Miyano, K., Okazawa, H., Saji, C., Takahashi, M., Takahata, M., Higuchi, K., Nagashima, Y., Takita, M., Yamaguchi, T., Yoshida, M., Kim, S.B., Etoh, M., Hasegawa, A., Hasegawa, T., Hatakeyama, S., Iwamoto, T., Koga, M., Maruyama, T., Ogawa, H., Shirai, J., Suzuki, A., Tsushima, F., Koshiba, M., Hatakeyama, Y., Koike, M., Nemoto, M., Nishijima, K., Fujiyasu, H., Hayato, Y., Kanaya, Y., Kaneyuki, K., Watanabe, Y., Kielczewska, D., George, J.S., Stachyra, A.L., Wai, L.L., Wilkes, R.J., Young, K.K.

Phys.Rev.Lett. 82 ( 26 ) 5194 - 5197 1999年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevLett.82.5194

Web of Science

arXiv

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Measurement of the flux and zenith angle distribution of upward through going muons by Super-Kamiokande 査読

Fukuda, Y., Hayakawa, T., Ichihara, E., Inoue, K., Ishihara, K., Ishino, H., Itow, Y., Kajita, T., Kameda, J., Kasuga, S., Kobayashi, K., Kobayashi, Y., Koshio, Y., Miura, M., Nakahata, M., Nakayama, S., Okada, A., Okumura, K., Sakurai, N., Shiozawa, M., Suzuki, Y., Takeuchi, Y., Totsuka, Y., Yamada, S., Earl, M., Habig, Alec, Kearns, E., Messier, M.D., Scholberg, K., Stone, J.L., Sulak, L.R., Walter, C.W., Goldhaber, M., Barszczak, T., Casper, D., Gajewski, W., Kropp, W.R., Price, L.R., Reines, F., Smy, M., Sobel, H.W., Vagins, M.R., Ganezer, K.S., Keig, W.E., Ellsworth, R.W., Tasaka, S., Flanagan, J.W., Kibayashi, A., Learned, J.G., Matsuno, S., Stenger, V.J., Takemori, D., Ishii, T., Kanzaki, J., Kobayashi, T., Mine, S., Nakamura, K., Nishikawa, K., Oyama, Y., Sakai, A., Sakuda, M., Sasaki, Osamu, Echigo, S., Kohama, M., Suzuki, A.T., Haines, T.J., Blaufuss, E., Kim, B.K., Sanford, R., Svoboda, R., Chen, M.L., Goodman, J.A., Sullivan, G.W., Hill, J., Jung, C.K., Martens, K., Mauger, C., McGrew, C., Sharkey, E., Viren, B., Yanagisawa, C., Doki, W., Miyano, K., Okazawa, H., Saji, C., Takahata, M., Nagashima, Y., Takita, M., Yamaguchi, T., Yoshida, M., Kim, S.B., Etoh, M., Fujita, K., Hasegawa, A., Hasegawa, T., Hatakeyama, S., Iwamoto, T., Koga, M., Maruyama, T., Ogawa, H., Shirai, J., Suzuki, A., Tsushima, F., Koshiba, M., Nemoto, M., Nishijima, K., Futagami, T., Hayato, Y., Kanaya, Y., Kaneyuki, K., Watanabe, Y., Kielczewska, D., Doyle, R.A., George, J.S., Stachyra, A.L., Wai, L.L., Wilkes, R.J., Young, K.K.

Phys.Rev.Lett. 82 ( 13 ) 2644 - 2648 1999年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevLett.82.2644

Web of Science

arXiv

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Measurement of the solar neutrino energy spectrum using neutrino electron scattering 査読

Fukuda, Y., Hayakawa, T., Ichihara, E., Inoue, K., Ishihara, K., Ishino, H., Itow, Y., Kajita, T., Kameda, J., Kasuga, S., Kobayashi, K., Kobayashi, Y., Koshio, Y., Miura, M., Nakahata, M., Nakayama, S., Okada, A., Okumura, K., Sakurai, N., Shiozawa, M., Suzuki, Y., Takeuchi, Y., Totsuka, Y., Yamada, S., Earl, M., Habig, Alec, Kearns, E., Messier, M.D., Scholberg, K., Stone, J.L., Sulak, L.R., Walter, C.W., Goldhaber, M., Barszczak, T., Casper, D., Gajewski, W., Halverson, P.G., Hsu, J., Kropp, W.R., Price, L.R., Reines, F., Smy, M., Sobel, H.W., Vagins, M.R., Ganezer, K.S., Keig, W.E., Ellsworth, R.W., Tasaka, S., Flanagan, J.W., Kibayashi, A., Learned, J.G., Matsuno, S., Stenger, V.J., Takemori, D., Ishii, T., Kanzaki, J., Kobayashi, T., Mine, S., Nakamura, K., Nishikawa, K., Oyama, Y., Sakai, A., Sakuda, M., Sasaki, Osamu, Echigo, S., Kohama, M., Suzuki, A.T., Haines, T.J., Blaufuss, E., Kim, B.K., Sanford, R., Svoboda, R., Chen, M.L., Conner, Z., Goodman, J.A., Sullivan, G.W., Hill, J., Jung, C.K., Martens, K., Mauger, C., McGrew, C., Sharkey, E., Viren, B., Yanagisawa, C., Doki, W., Miyano, K., Okazawa, H., Saji, C., Takahata, M., Nagashima, Y., Takita, M., Yamaguchi, T., Yoshida, M., Kim, S.B., Etoh, M., Fujita, K., Hasegawa, A., Hasegawa, T., Hatakeyama, S., Iwamoto, T., Koga, M., Maruyama, T., Ogawa, H., Shirai, J., Suzuki, A., Tsushima, F., Koshiba, M., Nemoto, M., Nishijima, K., Futagami, T., Hayato, Y., Kanaya, Y., Kaneyuki, K., Watanabe, Y., Kielczewska, D., Doyle, R.A., George, J.S., Stachyra, A.L., Wai, L.L., Wilkes, R.J., Young, K.K.

Phys.Rev.Lett. 82 ( 12 ) 2430 - 2434 1999年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevLett.82.2430

Web of Science

arXiv

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Constraints on neutrino oscillation parameters from the measurement of day night solar neutrino fluxes at Super-Kamiokande 査読

Fukuda, Y., Hayakawa, T., Ichihara, E., Inoue, K., Ishihara, K., Ishino, H., Itow, Y., Kajita, T., Kameda, J., Kasuga, S., Kobayashi, K., Kobayashi, Y., Koshio, Y., Miura, M., Nakahata, M., Nakayama, S., Okada, A., Okumura, K., Sakurai, N., Shiozawa, M., Suzuki, Y., Takeuchi, Y., Totsuka, Y., Yamada, S., Earl, M., Habig, Alec, Kearns, E., Messier, M.D., Scholberg, K., Stone, J.L., Sulak, L.R., Walter, C.W., Goldhaber, M., Barszczak, T., Casper, D., Gajewski, W., Halverson, P.G., Hsu, J., Kropp, W.R., Price, L.R., Reines, F., Smy, M., Sobel, H.W., Vagins, M.R., Ganezer, K.S., Keig, W.E., Ellsworth, R.W., Tasaka, S., Flanagan, J.W., Kibayashi, A., Learned, J.G., Matsuno, S., Stenger, V.J., Takemori, D., Ishii, T., Kanzaki, J., Kobayashi, T., Mine, S., Nakamura, K., Nishikawa, K., Oyama, Y., Sakai, A., Sakuda, M., Sasaki, Osamu, Echigo, S., Kohama, M., Suzuki, A.T., Haines, T.J., Blaufuss, E., Kim, B.K., Sanford, R., Svoboda, R., Chen, M.L., Conner, Z., Goodman, J.A., Sullivan, G.W., Hill, J., Jung, C.K., Martens, K., Mauger, C., McGrew, C., Sharkey, E., Viren, B., Yanagisawa, C., Doki, W., Miyano, K., Okazawa, H., Saji, C., Takahata, M., Nagashima, Y., Takita, M., Yamaguchi, T., Yoshida, M., Kim, S.B., Etoh, M., Fujita, K., Hasegawa, A., Hasegawa, T., Hatakeyama, S., Iwamoto, T., Koga, M., Maruyama, T., Ogawa, H., Shirai, J., Suzuki, A., Tsushima, F., Koshiba, M., Nemoto, M., Nishijima, K., Futagami, T., Hayato, Y., Kanaya, Y., Kaneyuki, K., Watanabe, Y., Kielczewska, D., Doyle, R.A., George, J.S., Stachyra, A.L., Wai, L.L., Wilkes, R.J., Young, K.K.

Phys.Rev.Lett. 82 ( 9 ) 1810 - 1814 1999年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevLett.82.1810

Web of Science

arXiv

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Measurement of radon concentrations at Super-Kamiokande 査読

Takeuchi, Y., Okumura, K., Kajita, T., Tasaka, S., Nemoto, M., Fukuda, Y., Okazawa, H., Hayakawa, T., Ishihara, K., Ishino, H., Itow, Y., Kameda, J., Kasuga, S., Kobayashi, K., Kobayashi, Y., Koshio, Y., Miura, M., Nakahata, M., Nakayama, S., Obayashi, Y., Okada, A., Sakurai, N., Shiozawa, M., Suzuki, Y., Takeuchi, H., Totsuka, Y., Yamada, S., Earl, M., Habig, Alec, Kearns, E., Messier, M.D., Scholberg, K., Stone, J.L., Sulak, L.R., Walter, C.W., Goldhaber, M., Barszczak, T., Casper, D., Gajewski, W., Kropp, W.R., Mine, S., Price, L.R., Smy, M., Sobel, H.W., Vagins, M.R., Ganezer, K.S., Keig, W.E., Ellsworth, R.W., Kibayashi, A., Learned, J.G., Matsuno, S., Stenger, V.J., Takemori, D., Ishii, T., Kanzaki, J., Kobayashi, T., Nakamura, K., Nishikawa, K., Oyama, Y., Sakai, A., Sakuda, M., Sasaki, Osamu, Echigo, S., Kohama, M., Suzuki, A.T., Haines, T.J., Blaufuss, E., Kim, B.K., Sanford, R., Svoboda, R., Chen, M.L., Goodman, J.A., Sullivan, G.W., Hill, J., Jung, C.K., Martens, K., Mauger, C., McGrew, C., Sharkey, E., Viren, B., Yanagisawa, C., Doki, W., Kirisawa, M., Inaba, S., Miyano, K., Saji, C., Takahashi, M., Takahata, M., Higuchi, K., Nagashima, Y., Takita, M., Yamaguchi, T., Yoshida, M., Kim, S.B., Etoh, M., Hasegawa, A., Hasegawa, T., Hatakeyama, S., Inoue, K., Iwamoto, T., Koga, M., Maruyama, T., Ogawa, H., Shirai, J., Suzuki, A., Tsushima, F., Koshiba, M., Hatakeyama, Y., Koike, M., Nishijima, K., Fujiyasu, H., Futagami, T., Hayato, Y., Kanaya, Y., Kaneyuki, K., Watanabe, Y., Kielczewska, D., George, J.S., Stachyra, A.L., Wai, L.L., Wilkes, R.J., Young, K.K.

Phys.Lett.B 452 ( 3-4 ) 418 - 424 1999年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1016/S0370-2693(99)00311-1

Web of Science

arXiv

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Calibration of Super-Kamiokande using an electron linac 査読

Nakahata, M., Fukuda, Y., Hayakawa, T., Ichihara, E., Inoue, K., Ishihara, K., Ishino, H., Itow, Y., Kajita, T., Kameda, J., Kasuga, S., Kobayashi, K., Kobayashi, Y., Koshio, Y., Martens, K., Miura, M., Nakayama, S., Okada, A., Okumura, K., Sakurai, N., Shiozawa, M., Suzuki, Y., Takeuchi, Y., Totsuka, Y., Yamada, S., Earl, M., Habig, Alec, Kearns, E., Messier, M.D., Scholberg, K., Stone, J.L., Sulak, L.R., Walter, C.W., Goldhaber, M., Barszczak, T., Casper, D., Gajewski, W., Halverson, P.G., Hsu, J., Kropp, W.R., Price, L.R., Reines, F., Smy, M., Sobel, H.W., Vagins, M.R., Ganezer, K.S., Keig, W.E., Ellsworth, R.W., Tasaka, S., Flanagan, J.W., Kibayashi, A., Learned, J.G., Matsuno, S., Stenger, V.J., Takemori, D., Ishii, T., Kanzaki, J., Kobayashi, T., Mine, S., Nakamura, K., Nishikawa, K., Oyama, Y., Sakai, A., Sakuda, M., Sasaki, Osamu, Echigo, S., Kohama, M., Suzuki, A.T., Haines, T.J., Blaufuss, E., Kim, B.K., Sanford, R., Svoboda, R., Chen, M.L., Conner, Z., Goodman, J.A., Sullivan, G.W., Hill, J., Jung, C.K., Mauger, C., McGrew, C., Sharkey, E., Viren, B., Yanagisawa, C., Doki, W., Miyano, K., Okazawa, H., Saji, C., Takahata, M., Nagashima, Y., Takita, M., Yamaguchi, T., Yoshida, M., Kim, S.B., Etoh, M., Fujita, K., Hasegawa, A., Hasegawa, T., Hatakeyama, S., Iwamoto, T., Koga, M., Maruyama, T., Ogawa, H., Shirai, J., Suzuki, A., Tsushima, F., Koshiba, M., Nemoto, M., Nishijima, K., Futagami, T., Hayato, Y., Kanaya, Y., Kaneyuki, K., Watanabe, Y., Kielczewska, D., Doyle, R.A., George, J.S., Stachyra, A.L., Wai, L.L., Wilkes, R.J., Young, K.K., Kobayashi, H.

Nucl.Instrum.Meth.A 421 ( 1-2 ) 113 - 129 1999年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1016/S0168-9002(98)01200-5

Web of Science

arXiv

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Search for proton decay through p ---> anti-neutrino K+ in a large water Cherenkov detector 査読

Hayato, Y., Earl, M., Fukuda, Y., Hayakawa, T., Inoue, K., Ishihara, K., Ishino, H., Itow, Y., Kajita, T., Kameda, J., Kasuga, S., Kobayashi, K., Kobayashi, Y., Koshio, Y., Miura, M., Nakahata, M., Nakayama, S., Obayashi, Y., Okada, A., Okumura, K., Sakurai, N., Shiozawa, M., Suzuki, Y., Takeuchi, H., Takeuchi, Y., Totsuka, Y., Yamada, S., Habig, Alec, Kearns, E., Messier, M.D., Scholberg, K., Stone, J.L., Sulak, L.R., Walter, C.W., Goldhaber, M., Barszczak, T., Casper, D., Gajewski, W., Kropp, W.R., Mine, S., Price, L.R., Smy, M., Sobel, H.W., Vagins, M.R., Ganezer, K.S., Keig, W.E., Ellsworth, R.W., Tasaka, S., Kibayashi, A., Learned, J.G., Matsuno, S., Stenger, V.J., Takemori, D., Ishii, T., Kanzaki, J., Kobayashi, T., Nakamura, K., Nishikawa, K., Oyama, Y., Sakai, A., Sakuda, M., Sasaki, Osamu, Echigo, S., Kohama, M., Suzuki, A.T., Haines, T.J., Blaufuss, E., Kim, B.K., Sanford, R., Svoboda, R., Chen, M.L., Goodman, J.A., Sullivan, G.W., Hill, J., Jung, C.K., Martens, K., Mauger, C., McGrew, C., Sharkey, E., Viren, B., Yanagisawa, C., Doki, W., Kirisawa, M., Inaba, S., Miyano, K., Okazawa, H., Saji, C., Takahashi, M., Takahata, M., Higuchi, K., Nagashima, Y., Takita, M., Yamaguchi, T., Yoshida, M., Kim, S.B., Etoh, M., Hasegawa, A., Hasegawa, T., Hatakeyama, S., Iwamoto, T., Koga, M., Maruyama, T., Ogawa, H., Shirai, J., Suzuki, A., Tsushima, F., Koshiba, M., Hatakeyama, Y., Koike, M., Nemoto, M., Nishijima, K., Fujiyasu, H., Futagami, T., Kanaya, Y., Kaneyuki, K., Watanabe, Y., Kielczewska, D., George, J.S., Stachyra, A.L., Wai, L.L., Wilkes, R.J., Young, K.K.

Phys.Rev.Lett. 83 ( 8 ) 1529 - 1533 1999年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevLett.83.1529

Web of Science

arXiv

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Neutrino induced upward stopping muons in Super-Kamiokande 査読

Fukuda, Y., Ishihara, K., Itow, Y., Kajita, T., Kameda, J., Kasuga, S., Kobayashi, K., Kobayashi, Y., Koshio, Y., Miura, M., Nakahata, M., Nakayama, S., Obayashi, Y., Okada, A., Okumura, K., Sakurai, N., Shiozawa, M., Suzuki, Y., Takeuchi, H., Takeuchi, Y., Totsuka, Y., Yamada, S., Earl, M., Habig, Alec, Kearns, E., Messier, M.D., Scholberg, K., Stone, J.L., Sulak, L.R., Walter, C.W., Goldhaber, M., Barszczak, T., Casper, D., Gajewski, W., Kropp, W.R., Mine, S., Price, L.R., Smy, M., Sobel, H.W., Vagins, M.R., Ganezer, K.S., Keig, W.E., Ellsworth, R.W., Tasaka, S., Kibayashi, A., Learned, J.G., Matsuno, S., Stenger, V.J., Takemori, D., Ishii, T., Ishino, H., Kobayashi, T., Nakamura, K., Oyama, Y., Sakai, A., Sakuda, M., Sasaki, Osamu, Echigo, S., Kohama, M., Suzuki, A.T., Inagaki, T., Nishikawa, K., Haines, T.J., Blaufuss, E., Kim, B.K., Sanford, R., Svoboda, R., Chen, M.L., Goodman, J.A., Sullivan, G.W., Hill, J., Jung, C.K., Martens, K., Mauger, C., McGrew, C., Sharkey, E., Viren, B., Yanagisawa, C., Doki, W., Kirisawa, M., Inaba, S., Miyano, K., Okazawa, H., Saji, C., Takahashi, M., Takahata, M., Higuchi, K., Nagashima, Y., Takita, M., Yamaguchi, T., Yoshida, M., Kim, S.B., Etoh, M., Hasegawa, A., Hasegawa, T., Hatakeyama, S., Inoue, K., Iwamoto, T., Koga, M., Maruyama, T., Ogawa, H., Shirai, J., Suzuki, A., Tsushima, F., Koshiba, M., Hatakeyama, Y., Koike, M., Nemoto, M., Nishijima, K., Fujiyasu, H., Futagami, T., Hayato, Y., Kanaya, Y., Kaneyuki, K., Watanabe, Y., Kielczewska, D., George, J.S., Stachyra, A.L., Wilkes, R.J., Young, K.K.

Phys.Lett.B 467 ( 3-4 ) 185 - 193 1999年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1016/S0370-2693(99)01188-0

Web of Science

arXiv

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Measurements of the solar neutrino flux from super-Kamiokande's first 300 days (vol 81, pg 1158, 1998) 査読

Fukuda Y, Hayakawa T, Ichihara E, Inoue K, Ishihara K, Ishino H, Itow Y, Kajita T, Kameda J, Kasuga S, Kobayashi K, Kobayashi Y, Koshio Y, Martens K, Miura M, Nakahata M, Nakayama S, Okada A, Oketa M, Okumura K, Ota M, Sakurai N, Shiozawa M, Suzuki Y, Takeuchi Y, Totsuka Y, Yamada S, Earl M, Habig A, Hong JT, Kearns E, Kim SB, Masuzawa M, Messier MD, Scholberg K, Stone JL, Sulak LR, Walter CW, Goldhaber M, Barszczak T, Gajewski W, Halverson PG, Hsu J, Kropp WR, Price LR, Reines F, Sobel HW, Vagins MR, Ganezer KS, Keig WE, Ellsworth RW, Tasaka S, Flanagan JW, Kibayashi A, Learned JG, Matsuno S, Stenger V, Takemori D, Ishii T, Kanzaki J, Kobayashi T, Nakamura K, Nishikawa K, Oyama Y, Sakai A, Sakuda M, Sasaki O, Echigo S, Kohama M, Suzuki AT, Haines TJ, Blaufuss E, Sanford R, Svoboda R, Chen ML, Conner Z, Goodman JA, Sullivan GW, Mori M, Hill J, Jung CK, Mauger C, McGrew C, Sharkey E, Viren B, Yanagisawa C, Doki W, Ishizuka T, Kitaguchi Y, Koga H, Miyano K, Okazawa H, Saji C, Takahata M, Kusano A, Nagashima Y, Takita M, Yamaguchi T, Yoshida M, Etoh M, Fujita K, Hasegawa A, Hasegawa T, Hatakeyama S, Iwamoto T, Kinebuchi T, Koga M, Maruyama T, Ogawa H, Suzuki A, Tsushima F, Koshiba M, Nemoto M, Nishijima K, Futagami T, Hayato Y, Kanaya Y, Kaneyuki K, Watanabe Y, Kielczewska D, Doyle R, George J, Stachyra A, Wai L, Wilkes J, Young K

PHYSICAL REVIEW LETTERS 81 ( 19 ) 4279 1998年11月

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DOI： 10.1103/PhysRevLett.81.4279

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Measurement of the flux and zenith-angle distribution of upward through-going muons in Kamiokande II+III 査読

S Hatakeyama, T Hara, Y Fukuda, T Hayakawa, K Inoue, K Ishihara, H Ishino, S Joukou, T Kajita, S Kasuga, Y Koshio, T Kumita, K Matsumoto, M Nakahata, K Nakamura, K Okumura, A Sakai, M Shiozawa, J Suzuki, Y Suzuki, T Tomoeda, Y Totsuka, KS Hirata, K Kihara, Y Oyama, M Koshiba, K Nishijima, T Horiuchi, K Fujita, M Koga, T Maruyama, A Suzuki, M Mori, T Suda, AT Suzuki, T Ishizuka, K Miyano, H Okazawa, Y Nagashima, M Takita, T Yamaguchi, Y Hayato, K Kaneyuki, T Suzuki, Y Takeuchi, T Tanimori, S Tasaka, E Ichihara, S Miyamoto, K Nishikawa

PHYSICAL REVIEW LETTERS 81 ( 10 ) 2016 - 2019 1998年9月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMERICAN PHYSICAL SOC

The flux of upward through-going muons of minimum (mean) threshold energy >1.6 (3.0) GeV is measured, based on a total of 372 events observed by the Kamiokande II + III detector during 2456 detector live days. The observed muon flux was Phi(obs) = [1.94 +/- 0.10(stat.)(-0.06)(+0.07)sys.)] x 10(-13) cm(-2)s(-1) sr(-1), which is compared to an expected value of Phi(theo) = [2.46 +/- 0.54(theo.)] x 10(-13) cm(-2)s(-1) sr(-1). The observation is in agreement with the prediction within the errors. The zenith-angle dependence of the observed upward through-going muons supports the previous indication of neutrino oscillations made by Kamiokande using sub- and multi-GeV atmospheric neutrino events.

DOI： 10.1103/PhysRevLett.81.2016

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Study of the atmospheric neutrino flux in the multi-GeV energy range 査読

Fukuda, Y., Hayakawa, T., Ichihara, E., Inoue, K., Ishihara, K., Ishino, H., Itow, Y., Kajita, T., Kameda, J., Kasuga, S., Kobayashi, K., Kobayashi, Y., Koshio, Y., Martens, K., Miura, M., Nakahata, M., Nakayama, S., Okada, A., Oketa, M., Okumura, K., Ota, M., Sakurai, N., Shiozawa, M., Suzuki, Y., Takeuchi, Y., Totsuka, Y., Yamada, S., Earl, M., Habig, Alec, Kearns, E., Kim, S.B., Messier, M.D., Scholberg, K., Stone, J.L., Sulak, L.R., Walter, C.W., Goldhaber, M., Barszczak, T., Gajewski, W., Halverson, P.G., Hsu, J., Kropp, W.R., Price, L.R., Reines, F., Sobel, H.W., Vagins, M.R., Ganezer, K.S., Keig, W.E., Ellsworth, R.W., Tasaka, S., Flanagan, J.W., Kibayashi, A., Learned, J.G., Matsuno, S., Stenger, V., Takemori, D., Ishii, T., Kanzaki, J., Kobayashi, T., Nakamura, K., Nishikawa, K., Oyama, Y., Sakai, A., Sakuda, M., Sasaki, Osamu, Echigo, S., Kohama, M., Suzuki, A.T., Haines, T.J., Blaufuss, E., Sanford, R., Svoboda, R., Chen, M.L., Conner, Z., Goodman, J.A., Sullivan, G.W., Mori, M., Hill, J., Jung, C.K., Mauger, C., McGrew, C., Sharkey, E., Viren, B., Yanagisawa, C., Doki, W., Ishizuka, T., Kitaguchi, Y., Koga, H., Miyano, K., Okazawa, H., Saji, C., Takahata, M., Kusano, A., Nagashima, Y., Takita, M., Yamaguchi, T., Yoshida, M., Etoh, M., Fujita, K., Hasegawa, A., Hasegawa, T., Hatakeyama, S., Iwamoto, T., Kinebuchi, T., Koga, M., Maruyama, T., Ogawa, H., Suzuki, A., Tsushima, F., Koshiba, M., Nemoto, M., Nishijima, K., Futagami, T., Hayato, Y., Kanaya, Y., Kaneyuki, K., Watanabe, Y., Kielczewska, D., Doyle, R., George, J., Stachyra, A., Wai, L., Wilkes, J., Young, K.

Phys.Lett.B 436 ( 1-2 ) 33 - 41 1998年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1016/S0370-2693(98)00876-4

Web of Science

arXiv

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その他リンク： https://science.energy.gov/hep/highlights/2015/hep-2015-11-a/
Measurements of the solar neutrino flux from Super-Kamiokande's first 300 days 査読

Fukuda, Y., Hayakawa, T., Ichihara, E., Inoue, K., Ishihara, K., Ishino, H., Itow, Y., Kajita, T., Kameda, J., Kasuga, S., Kobayashi, K., Kobayashi, Y., Koshio, Y., Martens, K., Miura, M., Nakahata, M., Nakayama, S., Okada, A., Oketa, M., Okumura, K., Ota, M., Sakurai, N., Shiozawa, M., Suzuki, Y., Takeuchi, Y., Totsuka, Y., Yamada, S., Earl, M., Habig, Alec, Hong, J.T., Kearns, E., Kim, S.B., Masuzawa, M., Messier, M.D., Scholberg, K., Stone, J.L., Sulak, L.R., Walter, C.W., Goldhaber, M., Barszczak, T., Gajewski, W., Halverson, P.G., Hsu, J., Kropp, W.R., Price, L.R., Reines, F., Sobel, H.W., Vagins, M.R., Ganezer, K.S., Keig, W.E., Ellsworth, R.W., Tasaka, S., Flanagan, J.W., Kibayashi, A., Learned, J.G., Matsuno, S., Stenger, V., Takemori, D., Ishii, T., Kanzaki, J., Kobayashi, T., Nakamura, K., Nishikawa, K., Oyama, Y., Sakai, A., Sakuda, M., Sasaki, Osamu, Echigo, S., Kohama, M., Suzuki, A.T., Haines, T.J., Blaufuss, E., Sanford, R., Svoboda, R., Chen, M.L., Conner, Z., Goodman, J.A., Sullivan, G.W., Mori, M., Hill, J., Jung, C.K., Mauger, C., McGrew, C., Sharkey, E., Viren, B., Yanagisawa, C., Doki, W., Ishizuka, T., Kitaguchi, Y., Koga, H., Miyano, K., Okazawa, H., Saji, C., Takahata, M., Kusano, A., Nagashima, Y., Takita, M., Yamaguchi, T., Yoshida, M., Etoh, M., Fujita, K., Hasegawa, A., Hasegawa, T., Hatakeyama, S., Iwamoto, T., Kinebuchi, T., Koga, M., Maruyama, T., Ogawa, H., Suzuki, A., Tsushima, F., Koshiba, M., Nemoto, M., Nishijima, K., Futagami, T., Hayato, Y., Kanaya, Y., Kaneyuki, K., Watanabe, Y., Kielczewska, D., Doyle, R., George, J., Stachyra, A., Wai, L., Wilkes, J., Young, K.

Phys.Rev.Lett. 81 ( 6 ) 1158 - 1162 1998年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevLett.81.1158

Web of Science

arXiv

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Search for proton decay via p ---> e+ pi0 in a large water Cherenkov detector 査読

Shiozawa, M., Viren, B., Fukuda, Y., Hayakawa, T., Ichihara, E., Inoue, K., Ishihara, K., Ishino, H., Itow, Y., Kajita, T., Kameda, J., Kasuga, S., Kobayashi, K., Kobayashi, Y., Koshio, Y., Miura, M., Nakahata, M., Nakayama, S., Okada, A., Oketa, M., Okumura, K., Ota, M., Sakurai, N., Suzuki, Y., Takeuchi, Y., Totsuka, Y., Yamada, S., Earl, M., Habig, Alec, Kearns, E., Messier, M.D., Scholberg, K., Stone, J.L., Sulak, L.R., Walter, C.W., Goldhaber, M., Barszczak, T., Gajewski, W., Halverson, P.G., Hsu, J., Kropp, W.R., Price, L.R., Reines, F., Sobel, H.W., Vagins, M.R., Ganezer, K.S., Keig, W.E., Ellsworth, R.W., Tasaka, S., Flanagan, J.W., Kibayashi, A., Learned, J.G., Matsuno, S., Stenger, V., Takemori, D., Ishii, T., Kanzaki, J., Kobayashi, T., Nakamura, K., Nishikawa, K., Oyama, Y., Sakai, A., Sakuda, M., Sasaki, Osamu, Echigo, S., Kohama, M., Suzuki, A.T., Haines, T.J., Blaufuss, E., Sanford, R., Svoboda, R., Chen, M.L., Conner, Z., Goodman, J.A., Sullivan, G.W., Mori, M., Hill, J., Jung, C.K., Martens, K., Mauger, C., McGrew, C., Sharkey, E., Yanagisawa, C., Doki, W., Ishizuka, T., Kitaguchi, Y., Koga, H., Miyano, K., Okazawa, H., Saji, C., Takahata, M., Kusano, A., Nagashima, Y., Takita, M., Yamaguchi, T., Yoshida, M., Kim, S.B., Etoh, M., Fujita, K., Hasegawa, A., Hasegawa, T., Hatakeyama, S., Iwamoto, T., Kinebuchi, T., Koga, M., Maruyama, T., Ogawa, H., Suzuki, A., Tsushima, F., Koshiba, M., Nemoto, M., Nishijima, K., Futagami, T., Hayato, Y., Kanaya, Y., Kaneyuki, K., Watanabe, Y., Kielczewska, D., Doyle, R., George, J., Stachyra, A., Wai, L., Wilkes, J., Young, K.

Phys.Rev.Lett. 81 ( 16 ) 3319 - 3323 1998年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevLett.81.3319

Web of Science

arXiv

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Evidence for oscillation of atmospheric neutrinos 査読

Fukuda, Y., Hayakawa, T., Ichihara, E., Inoue, K., Ishihara, K., Ishino, H., Itow, Y., Kajita, T., Kameda, J., Kasuga, S., Kobayashi, K., Kobayashi, Y., Koshio, Y., Miura, M., Nakahata, M., Nakayama, S., Okada, A., Okumura, K., Sakurai, N., Shiozawa, M., Suzuki, Y., Takeuchi, Y., Totsuka, Y., Yamada, S., Earl, M., Habig, Alec, Kearns, E., Messier, M.D., Scholberg, K., Stone, J.L., Sulak, L.R., Walter, C.W., Goldhaber, M., Barszczak, T., Casper, D., Gajewski, W., Halverson, P.G., Hsu, J., Kropp, W.R., Price, L.R., Reines, F., Smy, M., Sobel, H.W., Vagins, M.R., Ganezer, K.S., Keig, W.E., Ellsworth, R.W., Tasaka, S., Flanagan, J.W., Kibayashi, A., Learned, J.G., Matsuno, S., Stenger, V.J., Takemori, D., Ishii, T., Kanzaki, J., Kobayashi, T., Mine, S., Nakamura, K., Nishikawa, K., Oyama, Y., Sakai, A., Sakuda, M., Sasaki, Osamu, Echigo, S., Kohama, M., Suzuki, A.T., Haines, T.J., Blaufuss, E., Kim, B.K., Sanford, R., Svoboda, R., Chen, M.L., Conner, Z., Goodman, J.A., Sullivan, G.W., Hill, J., Jung, C.K., Martens, K., Mauger, C., McGrew, C., Sharkey, E., Viren, B., Yanagisawa, C., Doki, W., Miyano, K., Okazawa, H., Saji, C., Takahata, M., Nagashima, Y., Takita, M., Yamaguchi, T., Yoshida, M., Kim, S.B., Etoh, M., Fujita, K., Hasegawa, A., Hasegawa, T., Hatakeyama, S., Iwamoto, T., Koga, M., Maruyama, T., Ogawa, H., Shirai, J., Suzuki, A., Tsushima, F., Koshiba, M., Nemoto, M., Nishijima, K., Futagami, T., Hayato, Y., Kanaya, Y., Kaneyuki, K., Watanabe, Y., Kielczewska, D., Doyle, R.A., George, J.S., Stachyra, A.L., Wai, L.L., Wilkes, R.J., Young, K.K.

Phys.Rev.Lett. 81 ( 8 ) 1562 - 1567 1998年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1103/PhysRevLett.81.1562

Web of Science

arXiv

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その他リンク： https://science.energy.gov/hep/highlights/2015/hep-2015-11-a/
Measurement of a small atmospheric muon-neutrino / electron-neutrino ratio 査読

Fukuda, Y., Hayakawa, T., Ichihara, E., Inoue, K., Ishihara, K., Ishino, H., Itow, Y., Kajita, T., Kameda, J., Kasuga, S., Kobayashi, K., Kobayashi, Y., Koshio, Y., Marterns, K., Miura, M., Nakahata, M., Nakayama, S., Okada, A., Oketa, M., Okumura, K., Ota, M., Sakurai, N., Shiozawa, M., Suzuki, Y., Takeuchi, Y., Totsuka, Y., Yamada, S., Earl, M., Habig, Alec, Hong, J.T., Kearns, E., Kim, S.B., Masuzawa, M., Messier, M.D., Scholberg, K., Stone, J.L., Sulak, L.R., Walter, C.W., Goldhaber, M., Barszczak, T., Gajewski, W., Halverson, P.G., Hsu, J., Kropp, W.R., Price, L.R., Reines, F., Sobel, H.W., Vagins, M.R., Ganezer, K.S., Keig, W.E., Ellsworth, R.W., Tasaka, S., Flanagan, J.W., Kibayashi, A., Learned, J.G., Matsuno, S., Stenger, V., Takemori, D., Ishii, T., Kanzaki, J., Kobayashi, T., Nakamura, K., Nishikawa, K., Oyama, Y., Sakai, A., Sakuda, M., Sasaki, Osamu, Echigo, S., Kohama, M., Suzuki, A.T., Haines, T.J., Blaufuss, E., Sanford, R., Svoboda, R., Chen, M.L., Conner, Z., Goodman, J.A., Sullivan, G.W., Mori, M., Goebel, F., Hill, J., Jung, C.K., Mauger, C., McGrew, C., Sharkey, E., Viren, B., Yanagisawa, C., Doki, W., Ishizuka, T., Kitaguchi, Y., Koga, H., Miyano, K., Okazawa, H., Saji, C., Takahata, M., Kusano, A., Nagashima, Y., Takita, M., Yamaguchi, T., Yoshida, M., Etoh, M., Fujita, K., Hasegawa, A., Hasegawa, T., Hatakeyama, S., Iwamoto, T., Kinebuchi, T., Koga, M., Maruyama, T., Ogawa, H., Saito, M., Suzuki, A., Tsushima, F., Koshiba, M., Nemoto, M., Nishijima, K., Futagami, T., Hayato, Y., Kanaya, Y., Kaneyuki, K., Watanabe, Y., Kielczewska, D., Doyle, R., George, J., Stachyra, A., Wai, L., Wilkes, J., Young, K.

Phys.Lett.B 433 ( 1-2 ) 9 - 18 1998年

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記述言語：英語掲載種別：研究論文（学術雑誌）

DOI： 10.1016/S0370-2693(98)00476-6

Web of Science

arXiv

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Large-scale anisotropy of the cosmic-ray muon flux in Kamiokande 査読

K Munakata, T Kiuchi, S Yasue, C Kato, S Mori, KS Hirata, K Kihara, Y Oyama, M Mori, K Fujita, S Hatakeyama, M Koga, T Maruyama, A Suzuki, T Ishizuka, K Miyano, H Okazawa, Y Fukuda, T Hayakawa, K Inoue, K Ishihara, H Ishino, S Joukou, T Kajita, S Kasuga, Y Koshio, T Kumita, K Matsumoto, M Nakahata, K Nakamura, K Okumura, A Sakai, M Shiozawa, J Suzuki, Y Suzuki, T Tomoeda, Y Totsuka, T Horiuchi, K Nishijima, M Koshiba, T Suda, AT Suzuki, T Hara, Y Nagashima, M Takita, T Yamaguchi, Y Hayato, K Kaneyuki, T Suzuki, Y Takeuchi, T Tanimori, S Tasaka, E Ichihara, S Miyamoto, K Nishikawa

PHYSICAL REVIEW D 56 ( 1 ) 23 - 26 1997年7月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMERICAN PHYSICAL SOC

The large-scale anisotropy of cosmic-ray primaries in the celestial coordinate was studied using cosmic-ray muons recorded in a large water Cherenkov detector, Kamiokande. The right-ascension distribution of the muon arrival directions deviated from an isotropic distribution with a 2.8 standard deviation, and agreed well with the first harmonics with an amplitude of (5.6 +/- 1.9) x 10(-4) and a phase of 8.0 degrees +/- 19.1 degrees. This is the deepest underground observation of the large-scale anisotropy of cosmic rays, and agrees with observations with other underground experiments and extensive air-shower array experiments.

DOI： 10.1103/PhysRevD.56.23

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Study of neutron background in the atmospheric neutrino sample in Kamiokande 査読

Y Fukuda, T Hayakawa, K Inoue, K Ishihara, H Ishino, S Joukou, T Kajita, S Kasuga, Y Koshio, T Kumita, K Matsumoto, M Nakahata, K Nakamura, K Okumura, A Sakai, M Shiozawa, J Suzuki, Y Suzuki, T Tomoeda, Y Totsuka, KS Hirata, K Kihara, Y Oyama, M Koshiba, T Horiuchi, K Nishijima, K Fujita, S Hatakeyama, M Koga, T Maruyama, A Suzuki, M Mori, T Suda, AT Suzuki, T Ishizuka, K Miyano, H Okazawa, T Hara, Y Nagashima, M Takita, T Yamaguchi, Y Hayato, K Kaneyuki, T Suzuki, Y Takeuchi, T Tanimori, S Tasaka, E Ichihara, S Miyamoto, K Nishikawa

PHYSICS LETTERS B 388 ( 2 ) 397 - 401 1996年11月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

Neutron background in the atmospheric neutrino sample was studied based on the vertex position distribution of the fully contained pi(0) events. No evidence for the background contamination was observed. The neutron contamination in the sub-GeV e-like sample was less than 1.2% at 90% C.L.

DOI： 10.1016/S0370-2693(96)01264-6

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Solar neutrino data covering solar cycle 22 査読

Y Fukuda, T Hayakawa, K Inoue, K Ishihara, H Ishino, S Joukou, T Kajita, S Kasuga, Y Koshio, T Kumita, K Matsumoto, M Nakahata, K Nakamura, K Okumura, A Sakai, M Shiozawa, J Suzuki, Y Suzuki, T Tomoeda, Y Totsuka, KS Hirata, K Kihara, Y Oyama, M Koshiba, K Nishijima, T Horiuchi, K Fujita, S Hatakeyama, M Koga, T Maruyama, A Suzuki, M Mori, T Kajimura, T Suda, AT Suzuki, T Ishizuka, K Miyano, H Okazawa, T Hara, Y Nagashima, M Takita, T Yamaguchi, Y Hayato, K Kaneyuki, T Suzuki, Y Takeuchi, T Tanimori, S Tasaka, E Ichihara, S Miyamoto, K Nishikawa

PHYSICAL REVIEW LETTERS 77 ( 9 ) 1683 - 1686 1996年8月

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記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER PHYSICAL SOC

Results from 1036 days of solar neutrino data accumulated in the upgraded Kamiokande detector (Kamiokande III) are presented. The B-8 solar neutrino flux observed in Kamiokande III is 2.82(-0.24)(+0.25)(stat) +/- 0.27(syst) x 10(6) cm(-2) s(-1); the combined flux from Kamiokande II and III (2079 days in total) is 2.80 +/- 0.19 (stat) +/- 0.33 (syst) x 10(6) cm(-2) s(-1), which is 49% to 64% of the standard solar models. These combined data from January 1987 to February 1995, covering an entire period of solar cycle 22, enabled us to study a correlation between the neutrino flux and the solar activity in detail: no strong correlation of the solar neutrino flux with the sunspot numbers was found within experimental errors. The result on a search for the daytime and nighttime flux difference is also reported.

DOI： 10.1103/PhysRevLett.77.1683

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CMB偏光観測衛星LiteBIRD概念設計 II

関本裕太郎, 堂谷忠靖, 篠崎慶亮, 高倉隼人, 辻本匡弘, 長谷部孝, 満田和久, 永田竜, 羽澄昌史, 南雄人, 宇都宮真, 片山伸彦, 桜井雄基, 菅井肇, 高倉理, 松村知岳, 石野宏和, 魚住聖, 鹿島伸悟, 小松英一郎, 今田大皓

日本天文学会年会講演予稿集 2019 168 2019年2月

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記述言語：日本語

J-GLOBAL

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超短パルスレーザーを用いたLiteBIRD波長板用広帯域モスアイ反射防止構造の小径試料の作製と光学的評価

高久諒太, 松村知岳, 櫻井治之, 小西邦昭, 今田大皓, 桜井雄基, 片山伸彦, 満田和久, 山崎典子, 小松国幹, 石野宏和, 湯本潤司, 五神真

日本物理学会講演概要集(CD-ROM) 74 ( 1 ) 2019年

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J-GLOBAL

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CMB偏光観測衛星LiteBIRDミッション定義フェーズ III

関本裕太郎, 堂谷忠靖, 篠崎慶亮, 高倉隼人, 辻本匡弘, 長谷部孝, 満田和久, 永田竜, 羽澄昌史, 南雄人, 片山伸彦, 桜井雄基, 菅井肇, 高倉理, 松村知岳, 石野宏和, 魚住聖, 鹿島伸悟, 小松英一郎, 今田大皓

日本天文学会年会講演予稿集 2019 2019年

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J-GLOBAL

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Dinucleon and Nucleon Decay to Two-Body Final States with no Hadrons in Super-Kamiokande

Super-Kamiokande Collaboration, S. Sussman, K. Abe, C. Bronner, Y. Hayato, M. Ikeda, K. Iyogi, J. Kameda, Y. Kato, Y. Kishimoto, Ll. Marti, M. Miura, S. Moriyama, T. Mochizuki, M. Nakahata, Y. Nakajima, Y. Nakano, S. Nakayama, T. Okada, K. Okamoto, A. Orii, G. Pronost, H. Sekiya, M. Shiozawa, Y. Sonoda, A. Takeda, A. Takenaka, H. Tanaka, T. Yano, R. Akutsu, T. Kajita, Y. Nishimura, K. Okumura, R. Wang, J. Xia, L. Labarga, P. Fernandez, F. d. M. Blaszczyk, C. Kachulis, E. Kearns, J. L. Raaf, J. L. Stone, S. Berkman, J. Bian, N. J. Griskevich, W. R. Kropp, S. Locke, S. Mine, P. Weatherly, M. B. Smy, H. W. Sobel, V. Takhistov, K. S. Ganezer, J. Hill, J. Y. Kim, I. T. Lim, R. G. Park, B. Bodur, K. Scholberg, C. W. Walter, O. Drapier, M. Gonin, J. Imber, Th. A. Mueller, P. Paganini, T. Ishizuka, T. Nakamura, J. S. Jang, K. Choi, J. G. Learned, S. Matsuno, R. P. Litchfield, A. A. Sztuc, Y. Uchida, M. O. Wascko, N. F. Calabria, M. G. Catanesi, R. A. Intonti, E. Radicioni, G. De Rosa, A. Ali, G. Collazuol, F. Iacob, L. Ludovici, S. Cao, M. Friend, T. Hasegawa, T. Ishida, T. Kobayashi, T. Nakadaira, K. Nakamura, Y. Oyama, K. Sakashita, T. Sekiguchi, T. Tsukamoto, KE. Abe, M. Hasegawa, Y. Isobe, H. Miyabe, T. Sugimoto, A. T. Suzuki, Y. Takeuchi, Y. Ashida, T. Hayashino, S. Hirota, M. Jiang, T. Kikawa, M. Mori, KE. Nakamura, T. Nakaya, R. A. Wendell, L. H. V. Anthony, N. McCauley, A. Pritchard, K. M. Tsui, Y. Fukuda, Y. Itow, M. Murrase, P. Mijakowski, K. Frankiewicz, C. K. Jung, X. Li, J. L. Palomino, G. Santucci, C. Vilela, M. J. Wilking, C. Yanagisawa, D. Fukuda, K. Hagiwara, H. Ishino, S. Ito, Y. Koshio, M. Sakuda, Y. Takahira, C. Xu, Y. Kuno, C. Simpson, D. Wark, F. Di Lodovico, B. Richards, S. Molina Sedgwick, R. Tacik, S. B. Kim, M. Thiesse, L. Thompson, H. Okazawa, Y. Choi, K. Nishijima, M. Koshiba, M. Yokoyama, A. Goldsack, K. Martens, M. Murdoch, B. Quilain, Y. Suzuki, M. R. Vagins, M. Kuze, Y. Okajima, T. Yoshida, M. Ishitsuka, J. F. Martin, C. M. Nantais, H. A. Tanaka, T. Towstego, M. Hartz, A. Konaka, P. de Perio, S. Chen, L. Wan, A. Minamino

2018年11月

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掲載種別：機関テクニカルレポート，技術報告書，プレプリント等

Using 0.37 megaton$\cdot$years of exposure from the Super-Kamiokande<br />
detector, we search for 10 dinucleon and nucleon decay modes that have a<br />
two-body final state with no hadrons. These baryon and lepton number violating<br />
modes have the potential to probe theories of unification and baryogenesis. For<br />
five of these modes the searches are novel, and for the other five modes we<br />
improve the limits by more than one order of magnitude. No significant evidence<br />
for dinucleon or nucleon decay is observed and we set lower limits on the<br />
partial lifetime of oxygen nuclei and on the nucleon partial lifetime that are<br />
above $4\times 10^{33}$ years for oxygen via the dinucleon decay modes and up<br />
to about $4 \times 10^{34}$ years for nucleons via the single nucleon decay<br />
modes.

arXiv

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CMB偏光観測衛星LiteBIRD極低温広視野望遠鏡の概念設計

関本裕太郎, 堂谷忠靖, 羽澄昌史, 石野宏和, 宇都宮真, 鹿島伸悟, 片山伸彦, 桜井雄基, 篠崎慶亮, 菅井肇, 高倉理, 辻本匡弘, 冨田洋, 永田竜, 長谷部孝, 松村知岳, 満田和久, 南雄人

日本物理学会講演概要集(CD-ROM) 73 ( 2 ) ROMBUNNO.16pS37‐1 2018年9月

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記述言語：日本語

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Concept design of the LiteBIRD satellite for CMB B-mode polarization 査読

Sekimoto, Y., Ade, P., Arnold, K., Aumont, J., Austermann, J., Baccigalupi, C., Banday, A., Banerji, R., Basak, S., Beckman, S., Bersanelli, M., Borrill, J., Boulanger, F., Brown, M. L., Bucher, M., Calabrese, E., Casas, F. J., Challinor, A., Chinone, Y., Columbro, F., Cukierman, A., Curtis, D., de Bernardis, P., de Petris, M., Dobbs, M., Dotani, T., Duband, L., Duval, Jm., Ducout, A., Ebisawa, K., Elleot, T., Eriksen, H., Errard, J., Flauger, R., Franceschet, C., Fuskeland, U., Ganga, K., Gao, J. R., Ghigna, T., Grain, J., Gruppuso, A., Halverson, N., Hargrave, P., Hasebe, T., Hasegawa, M., Hattori, M., Hazumi, M., Henrot-Versille, S., Hill, C., Hirota, Y., Hivon, E., Hoang, D. T., Hubmayr, J., Ichiki, K., Imada, H., Ishino, H., Jaehnig, G., Kanai, H., Kashima, S., Kataoka, Y., Katayama, N., Kawasaki, T., Keskitalo, R., Kibayashi, A., Kikuchi, T., Kimura, K., Kisner, T., Kobayashi, Y., Kogiso, N., Kohri, K., Komatsu, E., Komatsu, K., Konishi, K., Krachmalnicoff, N., Kuo, C. L., Kurinsky, N., Kushino, A., Lamagna, L., Lee, A. T., Linder, E., Maffei, B., Maki, M., Mangilli, A., Martinez-Gonzalez, E., Masi, S., Matsumura, T., Mennella, A., Minami, Y., Mistuda, K., Molinari, D., Montier, L., Morgante, G., Mot, B., Murata, Y., Murphy, A., Nagai, M., Nagata, R., Nakamura, S., Namikawa, T., Natoli, P., Nishibori, T., Nishino, H., Noviello, F., O'Sullivan, C., Ochi, H., Ogawa, H., Ogawa, H., Ohsaki, H., Ohta, I., Okada, N., Patanchon, G., Piacentini, F., Pisano, G., Polenta, G., Poletti, D., Puglisi, G., Raum, C., Realini, S., Remazeilles, M., Sakurai, H., Sakurai, Y., Savini, G., Sherwin, B., Shinozaki, K., Shiraishi, M., Signorelli, G., Smecher, G., Stompor, R., Sugai, H., Sugiyama, S., Suzuki, A., Suzuki, J., Takaku, R., Takakura, H., Takakura, S., Taylor, E., Terao, Y., Thompson, K. L., Thorne, B., Tomasi, M., Tomida, H., Trappe, N., Tristram, M., Tsuji, M., Tsujimoto, M., Uozumi, S., Utsunomiya, S., Vittorio, N., Watanabe, N., Wehus, I., Westbrook, B., Winter, B., Yamamoto, R., Yamasaki, N. Y., Yanagisawa, M., Yoshida, T., Yumoto, J., Zannoni, M., Zonca, A.

Proceedings of SPIE - The International Society for Optical Engineering 10698 2018年

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DOI： 10.1117/12.2313432

Web of Science

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Design and development of a polarization modulator unit based on a continuous rotating half-wave plate for LiteBIRD 査読

Yuki Sakurai, Tomotake Matsumura, Nobuhiko Katayama, Hiroaki Imada, Kunimoto Komatsu, Hiroaki Kanai, Ryota Takaku, Shinya Shugiyama, Tommaso Ghigna, Teruhito Iida, Hajime Sugai, Hiroyuki Ohsaki, Yutaka Terao, Toshiki Shimomura, Kuniaki Konishi, Haruyuki Sakurai, Junji Yumoto, Muneyoshi Maki, Junichi Suzuki, Hirokazu Ishino, Shogo Nakamura, Akito Kusaka, Charles Hill, Masashi Hazumi, Hirokazu Kataza, Shin Utsunomiya, Ryo Yamamoto, Makoto Tashiro, Yukikatsu Terada

MILLIMETER, SUBMILLIMETER, AND FAR-INFRARED DETECTORS AND INSTRUMENTATION FOR ASTRONOMY IX 10708 2018年

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記述言語：英語出版者・発行元：SPIE-INT SOC OPTICAL ENGINEERING

We present our design and development of a polarization modulator unit (PMU) for LiteBIRD space mission. LiteBIRD is a next generation cosmic microwave background (CMB) polarization satellite to measure the primordial B-mode. The science goal of LiteBIRD is to measure the tensor-to-scalar ratio with the sensitivity of delta r < 10(-3) The baseline design of LiteBIRD is to employ the PMU based on a continuous rotating half-wave plate (HWP) at a telescope aperture with a diameter of 400 mm. It is an essential for LiteBIRD to achieve the science goal because it significantly reduces detector noise and systematic uncertainties. The LiteBIRD PMU consists of a multi-layered sapphire as a broadband achromatic HWP and a mechanism to continuously rotate it at 88 rpm. The whole system is maintained at below 10K to minimize the thermal emission from the HWP. In this paper, we discuss the current development status of the broadband achromatic HWP and the cryogenic rotation mechanism.

DOI： 10.1117/12.2312391

Web of Science

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Thermal design utilizing radiative cooling for the payload module of LiteBIRD 査読

Takashi Hasebe, Shingo Kashima, Satoru Uozumi, Hirokazu Ishino, Shin Utsunomiya, Hirohumi Noda, Kazuhisa Mitsuda, Yutaro Sekimoto, Tadayasu Dotani, Tomotake Matsumura, Hajime Sugai, Masahiro Tsujimoto, Hiroaki Imada, Masashi Hazumi

SPACE TELESCOPES AND INSTRUMENTATION 2018: OPTICAL, INFRARED, AND MILLIMETER WAVE 10698 2018年

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記述言語：英語出版者・発行元：SPIE-INT SOC OPTICAL ENGINEERING

The conceptual thermal design of the payload module (PLM) of LiteBIRD utilizing radiative cooling is studied. The thermal environment and structure design of the PLM strongly depend on the precession angle alpha of the spacecraft. In this study, the geometrical models of the PLM that consist of the sunshield, three layers of V-grooves, and 5 K shield were designed in the cases of alpha = 45 degrees; 30 degrees, and 5 degrees. The mission instruments of LiteBIRD are cooled down below 5 K. Therefore, heat transfers down to the 5 K cryogenic part were estimated in each case of alpha. The radiative heat transfers were calculated by using geometrical models of the PLM. The conductive heat transfers and the active cooling with cryocoolers were considered. We also studied the case that the inner surface of the V-groove is coated by a high-emissivity material.

DOI： 10.1117/12.2313034

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Trade-off studies on LiteBIRD reflectors

Hajime Sugai, Tomotake Matsumura, Junichi Suzuki, Muneyoshi Maki, Mitsugu Hosumi, Masashi Hazumi, Nobuhiko Katayama, Shin Utsunomiya, Shingo Kashima, Yuki Sakurai, Hiroaki Imada, Hirokazu Ishino, Takenori Fujii

MATERIAL TECHNOLOGIES AND APPLICATIONS TO OPTICS, STRUCTURES, COMPONENTS, AND SUB-SYSTEMS III 10372 2017年

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記述言語：英語出版者・発行元：SPIE-INT SOC OPTICAL ENGINEERING

The LiteBIRD satellite aims at detecting a signature imprinted on the cosmic microwave background (CMB) by the primordial gravitational wave predicted in inflation, which is an exponentially expanding era before the hot big bang. The extraction of such weak spiral polarization patterns requires the precise subtraction of our Galaxy's foreground emission such as the synchrotron and the dust emission. In order to separate them from the CMB by using their spectral shape differences, LiteBIRD covers a wide range of observing frequencies. The main telescope, Low Frequency Telescope (LFT), covers the CMB peak frequencies as well as the synchrotron emission. Based on the required sizes of optical elements in the LFT, an order of one meter, the telescope will consist of reflectors rather than lenses since the latter is limited in size availabilities of the corresponding materials. The image quality analysis provides the requirements of reflector surface shape errors within 30um rms. The requirement on surface roughness of 2um rms is determined from the reflectance requirement. Based on these requirements, we have carried out tradeoff studies on materials used for reflectors and their support structures. One possibility is to athermalize with aluminum, with the expected thermal contract of 0.4% from room temperature to 4-10 K. Another possibility is CFRP with cyanate resin, which is lighter and has negligibly small thermal contraction. For the reflector surface shape measurements including in low temperature, photogrammetry is a strong candidate with suitable accuracy and dynamic range of measurements.

DOI： 10.1117/12.2273765

Web of Science

Scopus

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宇宙マイクロ波背景放射Bモード偏光観測衛星LiteBIRDの偏光変調器の開発概要

片山伸彦, 松村知岳, 桜井雄基, 菅井肇, 飯田輝人, 大崎博之, 寺尾悠, 下村俊貴, 小林洋平, 小西邦昭, 櫻井治之, 湯本潤司, 五神真, 今田大皓, 山本亮, 宇都宮真, 片宏一, 羽澄昌史, 石野宏和, 小松国幹, 中村正吾, 高久諒太, 金井啓晃

日本天文学会年会講演予稿集 2017 2017年

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J-GLOBAL

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超伝導検出器KID用高速多重同時読み出しシステム (超伝導エレクトロニクス)

山田要介, 石野宏和, 樹林敦子, 喜田洋介, 小松国幹, 羽澄昌史, 佐藤伸明, 神代暁, 山森弘毅, 平山文紀, 酒井和弘

電子情報通信学会技術研究報告 = IEICE technical report : 信学技報 116 ( 269 ) 19 - 23 2016年10月

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記述言語：日本語出版者・発行元：電子情報通信学会

CiNii Article

CiNii Books

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液体ヘリウムを用いた軽い暗黒物質探索用超伝導検出器(LEKID)の開発(2) (超伝導エレクトロニクス)

喜田洋介, 石野宏和, 樹林敦子, 山田要介, 小松国幹, 秀平直人, 羽澄昌史, 佐藤伸明, 山森弘毅, 平山文紀, 神代暁

電子情報通信学会技術研究報告 = IEICE technical report : 信学技報 116 ( 269 ) 13 - 17 2016年10月

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記述言語：日本語出版者・発行元：電子情報通信学会

CiNii Article

CiNii Books

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LiteBIRD, Lite satellite for the study of B-mode polarization and Inflation from cosmic microwave background Radiation Detection 査読

H. Ishino, Y. Akiba, K. Arnold, D. Barron, J. Borrill, R. Chendra, Y. Chinone, S. Cho, A. Cukierman, T. de Haan, M. Dobbs, A. Dominjon, T. Dotani, T. Elleflot, J. Errard, T. Fujino, H. Fuke, T. Funaki, N. Goeckner-Wald, N. Halverson, P. Harvey, T. Hasebe, M. Hasegawa, K. Hattori, M. Hattori, M. Hazumi, N. Hidehira, C. Hill, G. Hilton, W. Holzapfel, Y. Hori, J. Hubmayr, K. Ichiki, H. Imada, J. Inatani, M. Inoue, Y. Inoue, F. Trie, K. Irwin, H. Ishitsuka, O. Jeong, H. Kanai, K. Karatsu, S. Kashima, N. Katayama, I. Kawano, T. Kawasaki, B. Keating, S. Kernasovskiy, R. Keskitalo, A. Kibayashi, Y. Kida, N. Kimura, K. Kimura, T. Kisner, K. Kohri, E. Komatsu, K. Komatsu, C. -L. Kuo, S. Kuromiya, A. Kusaka, A. Lee, D. Li, E. Linder, M. Maki, H. Matsuhara, T. Matsumura, S. Matsuoka, S. Matsuura, S. Mima, Y. Minami, K. Mitsuda, M. Nagai, T. Nagasaki, R. Nagata, M. Nakajima, S. Nakamura, T. Namikawa, M. Naruse, T. Nishibori, K. Nishijo, H. Nishino, A. Noda, T. Noguchi, H. Ogawa, W. Ogburn, S. Oguri, I. Ohta, N. Okada, A. Okamoto, T. Okamura, C. Otani, G. Pisano, G. Rebeiz, P. Richards, S. Sakai, Y. Sakurai, Y. Sato, N. Sato, Y. Segawa, S. Sekiguchi, Y. Sekimoto, M. Sekine, U. Seljak, B. Sherwin, T. Shimizu, K. Shinozaki, S. Shu, R. Stompor, H. Sugai, H. Sugita, J. Suzuki, T. Suzuki, A. Suzuki, O. Tajima, S. Takada, S. Takakura, K. Takano, S. Takatori, Y. Takei, D. Tanabe, T. Tomaru, N. Tomita, P. Turin, S. Uozumi, S. Utsunomiya, Y. Uzawa, T. Wada, H. Watanabe, B. Westbrook, N. Whitehorn, Y. Yamada, R. Yamamoto, N. Yamasaki, T. Yamashita, T. Yoshida, M. Yoshida, K. Yotsumoto

SPACE TELESCOPES AND INSTRUMENTATION 2016: OPTICAL, INFRARED, AND MILLIMETER WAVE 9904 2016年

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記述言語：英語出版者・発行元：SPIE-INT SOC OPTICAL ENGINEERING

LiteBIRD is a next generation satellite aiming for the detection of the Cosmic Microwave Background (CMB) B-mode polarization imprinted by the primordial gravitational waves generated in the era of the inflationary universe. The science goal of LiteBIRD is to measure the tensor-to-scaler ratio r with a precision of delta r < 10(-3), offering us a crucial test of the major large-single-field slow-roll inflation models. LiteBIRD is planned to conduct an all sky survey at the sun-earth second Lagrange point (L2) with an angular resolution of about 0.5 degrees to cover the multipole moment range of 2 <= l <= 200. We use focal plane detector arrays consisting of 2622 superconducting detectors to measure the frequency range from 40 to 400 GHz with the sensitivity of 2.5 mu K.arcmin. We report an overview and the status of the project, including the ongoing studies.

DOI： 10.1117/12.2231995

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CMB偏光観測衛星LiteBIRDにおける系統誤差の研究 V

小栗秀悟, 木村誠宏, 佐藤伸明, 鈴木敏一, 田島治, 茅根裕司, 都丸隆行, 永田竜, 羽澄昌史, 長谷川雅也, 服部香里, 森井秀樹, 山口博史, 吉田光宏, 秋葉祥希, 石塚光, 井上優貴, 瀬川優子, 渡辺広記, 高倉理, 宇都宮真, 河野功, 坂井真一郎, 佐藤洋一, 篠崎慶亮, 杉田寛之, 竹井洋, 西城邦俊, 西堀俊幸, 野田篤司, 福家英之, 松原英雄, 松村知岳, 満田和久, 山崎典子, 吉田哲也, 四元和彦, 和田武彦, 石野宏和, 樹林敦子

日本天文学会年会講演予稿集 2015 275 2015年2月

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記述言語：日本語

J-GLOBAL

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Physics potential of a long-baseline neutrino oscillation experiment using a J-PARC neutrino beam and Hyper-Kamiokande

K. Abe, K. Abe, H. Aihara, H. Aihara, C. Andreopoulos, I. Anghel, A. Ariga, T. Ariga, R. Asfandiyarov, M. Askins, J. J. Back, P. Ballett, M. Barbi, G. J. Barker, G. Barr, F. Bay, P. Beltrame, V. Berardi, M. Bergevin, S. Berkman, T. Berry, S. Bhadra, F. D.M. Blaszczyk, A. Blondel, S. Bolognesi, S. B. Boyd, A. Bravar, C. Bronner, F. S. Cafagna, G. Carminati, S. L. Cartwright, M. G. Catanesi, K. Choi, J. H. Choi, G. Collazuol, G. Cowan, L. Cremonesi, G. Davies, G. De Rosa, C. Densham, J. Detwiler, D. Dewhurst, F. Di Lodovico, S. Di Luise, O. Drapier, S. Emery, A. Ereditato, P. Fernández, T. Feusels, A. Finch, M. Fitton, M. Friend, M. Friend, Y. Fujii, Y. Fujii, Y. Fukuda, D. Fukuda, V. Galymov, K. Ganezer, M. Gonin, P. Gumplinger, D. R. Hadley, L. Haegel, A. Haesler, Y. Haga, B. Hartfiel, M. Hartz, M. Hartz, Y. Hayato, Y. Hayato, M. Hierholzer, J. Hill, A. Himmel, S. Hirota, S. Horiuchi, K. Huang, A. K. Ichikawa, T. Iijima, T. Iijima, M. Ikeda, J. Imber, K. Inoue, K. Inoue, J. Insler, R. A. Intonti, T. Irvine, T. Ishida, T. Ishida, H. Ishino, M. Ishitsuka, Y. Itow, Y. Itow, A. Izmaylov, B. Jamieson, H. I. Jang, M. Jiang, K. K. Joo, C. K. Jung, C. K. Jung, A. Kaboth

Progress of Theoretical and Experimental Physics 2015 ( 5 ) 2015年1月

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記述言語：英語出版者・発行元：Oxford University Press

© The Author(s) 2015. Hyper-Kamiokande will be a next-generation underground water Cherenkov detector with a total (fiducial) mass of 0.99 (0.56) million metric tons, approximately 20 (25) times larger than that of Super-Kamiokande. One of the main goals of Hyper-Kamiokande is the study of CP asymmetry in the lepton sector using accelerator neutrino and anti-neutrino beams. In this paper, the physics potential of a long-baseline neutrino experiment using the Hyper- Kamiokande detector and a neutrino beam from the J-PARC proton synchrotron is presented. The analysis uses the framework and systematic uncertainties derived from the ongoing T2K experiment. With a total exposure of 7.5MW ×107s integrated proton beam power (corresponding to 1.56 × 1022protons on target with a 30 GeV proton beam) to a 2.5° off-axis neutrino beam, it is expected that the leptonic CP phase δCPcan be determined to better than 19 degrees for all possible values of δCP, and CP violation can be established with a statistical significance of more than 3 σ (5 σ) for 76% (58%) of the δCPparameter space. Using both νeappearance and νμ disappearance data, the expected 1 σ uncertainty of sin2Θ23is 0.015(0.006) for sin2Θ23= 0.5(0.45).

DOI： 10.1093/ptep/ptv061

Scopus

CiNii Article

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Development of Lumped Element Kinetic Inductance Detectors for phonon and photon detections 査読

Atsuko Kibayashi, Hirokazu Ishino, Yosuke Yamada, Akinori Okamoto, Yosuke Kida, Masashi Hazumi, Nobuaki Sato, Hiroki Watanabe

2015 IEEE INTERNATIONAL INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE (I2MTC) 1042 - 1045 2015年

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記述言語：英語出版者・発行元：IEEE

We present recent developments of our phonon and photon detections using Lumped Element Kinetic Inductance Detectors (LEKIDs). Photons or phonons incident on superconducting material break Copper-pairs and change its kinetic inductance. If the superconductor is in a form of a resonator, the resonant frequency shifts depending on the deposited energy of the incident phonon or photon. We have been developing arrays of such detectors with different frequencies, and multiplex readouts in the frequency domain. We have optimized positions of resonators minimizing cross-talks between the neighboring resonators using simulation, and were able to detect phonons created in the substrate by irradiating alpha particles. We have also successfully counted photons incident on LEKIDs by a laser. We discuss possible future applications using LEKIDs. as well.

Web of Science

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LiteBIRD計画の現状

羽澄昌史, 小栗秀悟, 木村誠宏, 佐藤伸明, 鈴木敏一, 田島治, 茅根裕司, 都丸隆行, 永田竜, 長谷川雅也, 服部香里, 森井秀樹, 山口博史, 吉田光宏, 秋葉祥希, 石塚光, 井上優貴, 瀬川優子, 渡辺広記, 高倉理, 宇都宮真, 河野功, 坂井真一郎, 佐藤洋一, 篠崎慶亮, 杉田寛之, 竹井洋, 西城邦俊, 西堀俊幸, 野田篤司, 福家英之, 松原英雄, 松村知岳, 満田和久, 山崎典子, 吉田哲也, 四元和彦, 和田武彦, 石野宏和, 樹林敦子

日本天文学会年会講演予稿集 2015 2015年

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J-GLOBAL

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フォノン・フォトン検出用Kinetic Inductance Detectors (超伝導エレクトロニクス)

石野宏和, 樹林敦子, 山田要介, 岡本晃範, 喜田洋介, 羽澄昌史, 佐藤伸明, 神代暁, 山森弘毅

電子情報通信学会技術研究報告 = IEICE technical report : 信学技報 114 ( 247 ) 43 - 47 2014年10月

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記述言語：日本語出版者・発行元：一般社団法人電子情報通信学会

Kinetic Inductance Detectors(KID)は、外部からのエネルギーの付与により破壊されるクーパー対密度の変化を力学的インダクタンスの変化として検出する超伝導検出器である。予め超伝導物質の薄膜で、LC共振回路を組む事により、周波数領域読み出しにより多重化が可能となり、大規模な超伝導検出器を構成することが容易である。本公演では、基板からのフォノンや可視光フォトンの検出に特化したKIDとその読み出しシステムの開発状況と、軽い暗黒物質や大立体角X線検出器への応用について報告する。

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Search for Trilepton Nucleon Decay via $p \rightarrow e^+ νν$ and $p \rightarrow μ^+ νν$ in the Super-Kamiokande Experiment

V. Takhistov, K. Abe, Y. Haga, Y. Hayato, M. Ikeda, K. Iyogi, J. Kameda, Y. Kishimoto, M. Miura, S. Moriyama, M. Nakahata, Y. Nakano, S. Nakayama, H. Sekiya, M. Shiozawa, Y. Suzuki, A. Takeda, H. Tanaka, T. Tomura, K. Ueno, R. A. Wendell, T. Yokozawa, T. Irvine, T. Kajita, I. Kametani, K. Kaneyuki, K. P. Lee, T. McLachlan, Y. Nishimura, E. Richard, K. Okumura, L. Labarga, P. Fernandez, S. Berkman, H. A. Tanaka, S. Tobayama, J. Gustafson, E. Kearns, J. L. Raaf, J. L. Stone, L. R. Sulak, M. Goldhaber, G. Carminati, W. R. Kropp, S. Mine, P. Weatherly, A. Renshaw, M. B. Smy, H. W. Sobel, K. S. Ganezer, B. L. Hartfiel, J. Hill, W. E. Keig, N. Hong, J. Y. Kim, I. T. Lim, T. Akiri, A. Himmel, K. Scholberg, C. W. Walter, T. Wongjirad, T. Ishizuka, S. Tasaka, J. S. Jang, J. G. Learned, S. Matsuno, S. N. Smith, T. Hasegawa, T. Ishida, T. Ishii, T. Kobayashi, T. Nakadaira, K. Nakamura, Y. Oyama, K. Sakashita, T. Sekiguchi, T. Tsukamoto, A. T. Suzuki, Y. Takeuchi, C. Bronner, S. Hirota, K. Huang, K. Ieki, T. Kikawa, A. Minamino, A. Murakami, T. Nakaya, K. Suzuki, S. Takahashi, K. Tateishi, Y. Fukuda, K. Choi, Y. Itow, G. Mitsuka, P. Mijakowski, J. Hignight, J. Imber, C. K. Jung, C. Yanagisawa, H. Ishino, A. Kibayashi, Y. Koshio, T. Mori, M. Sakuda, R. Yamaguchi, T. Yano, Y. Kuno, R. Tacik, S. B. Kim, H. Okazawa, Y. Choi, K. Nishijima, M. Koshiba, Y. Suda, Y. Totsuka, M. Yokoyama, K. Martens, Ll. Marti, M. R. Vagins, J. F. Martin, P. de Perio, A. Konaka, M. J. Wilking, S. Chen, Y. Zhang, K. Connolly, R. J. Wilkes

Phys. Rev. Lett. 113, 101801 (2014) 113 ( 10 ) 101801 - 101801 2014年9月

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掲載種別：機関テクニカルレポート，技術報告書，プレプリント等

The trilepton nucleon decay modes $p \rightarrow e^+ \nu \nu$ and $p<br />
\rightarrow \mu^+ \nu \nu$ violate $|\Delta (B - L)|$ by two units. Using data<br />
from a 273.4 kiloton year exposure of Super-Kamiokande a search for these<br />
decays yields a fit consistent with no signal. Accordingly, lower limits on the<br />
partial lifetimes of $\tau_{p \rightarrow e^+ \nu \nu} > 1.7 \times 10^{32}$<br />
years and $\tau_{p \rightarrow \mu^+ \nu \nu} > 2.2 \times 10^{32}$ years at a<br />
$90 \% $ confidence level are obtained. These limits can constrain Grand<br />
Unified Theories which allow for such processes.

DOI： 10.1103/PhysRevLett.113.101801

arXiv

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18aSC-11 LiteBIRDのための偏光マップ作成ソフトウェアの開発(18aSC 宇宙線・宇宙物理領域,素粒子実験領域合同宇宙背景放射(POLARBEAR,GroundBIRD,LiteBIRD),宇宙線・宇宙物理領域)

水上邦義, 片山伸彦, 松村知岳, 石野宏和, 羽澄昌史, 中村正吾, LiteBIRD WG.

日本物理学会講演概要集 69 ( 2 ) 30 - 30 2014年8月

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記述言語：日本語出版者・発行元：一般社団法人日本物理学会

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科学衛星を用いた宇宙背景放射偏光精密測定計画LiteBIRDの概要

石野宏和, 樹林敦子, 小栗秀悟, 木村誠宏, 佐藤伸明, 鈴木敏一, 田島治, 茅根裕司, 都丸隆行, 永田竜, 羽澄昌史, 長谷川雅也, 服部香里, 堀泰人, 森井秀樹, 山口博史, 吉田光宏, 秋葉祥希, 石塚光, 井上優貴, 渡辺広記, 高倉理, 松村知岳, 河野功, 坂井真一郎, 佐藤洋一, 篠崎慶亮, 杉田寛之, 竹井洋, 西堀俊幸, 野田篤司, 福家英之, 松原英雄, 満田和久, 山崎典子, 吉田哲也, 四元和彦, 和田武彦, 永井誠, 高田卓

日本天文学会年会講演予稿集 2014 294 2014年8月

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記述言語：日本語

J-GLOBAL

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CMB偏光観測衛星LiteBIRDにおける系統誤差の研究 IV

小栗秀悟, 木村誠宏, 佐藤伸明, 鈴木敏一, 田島治, 茅根裕司, 都丸隆行, 永田竜, 羽澄昌史, 長谷川雅也, 服部香里, 松村知岳, 森井秀樹, 山口博史, 吉田光宏, 秋葉祥希, 石塚光, 井上優貴, 渡辺広記, 高倉理, 河野功, 坂井真一郎, 佐藤洋一, 篠崎慶亮, 杉田寛之, 竹井洋, 西堀俊幸, 野田篤司, 福家英之, 満田和久, 山崎典子, 吉田哲也, 四元和彦, 和田武彦, 永井誠, 高田卓, 石野宏和, 樹林敦子, 岐部佳朗, GHRIBI Adan

日本天文学会年会講演予稿集 2014 291 2014年2月

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記述言語：日本語

J-GLOBAL

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LiteBIRD: Mission overview and design tradeoffs 査読

T. Matsumura, Y. Akiba, J. Borrill, Y. Chinone, M. Dobbs, H. Fuke, M. Hasegawa, K. Hattori, M. Hattori, M. Hazumi, W. Holzapfel, Y. Hori, J. Inatani, M. Inoue, Y. Inoue, K. Ishidoshiro, H. Ishino, H. Ishitsuka, K. Karatsu, S. Kashima, N. Katayama, I. Kawano, A. Kibayashi, Y. Kibe, K. Kimura, N. Kimura, E. Komatsu, M. Kozu, K. Koga, A. Lee, H. Matsuhara, S. Mima, K. Mitsuda, K. Mizukami, H. Morii, T. Morishima, M. Nagai, R. Nagata, S. Nakamura, M. Naruse, T. Namikawa, K. Natsume, T. Nishibori, K. Nishijo, H. Nishino, A. Noda, T. Noguchi, H. Ogawa, S. Oguri, I. S. Ohta, N. Okada, C. Otani, P. Richards, S. Sakai, N. Sato, Y. Sato, Y. Segawa, Y. Sekimoto, K. Shinozaki, H. Sugita, A. Suzuki, T. Suzuki, O. Tajima, S. Takada, S. Takakura, Y. Takei, T. Tomaru, Y. Uzawa, T. Wada, H. Watanabe, Y. Yamada, H. Yamaguchi, N. Yamasaki, M. Yoshida, T. Yoshida, K. Yotsumoto

SPACE TELESCOPES AND INSTRUMENTATION 2014: OPTICAL, INFRARED, AND MILLIMETER WAVE 9143 2014年

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記述言語：英語出版者・発行元：SPIE-INT SOC OPTICAL ENGINEERING

We present the mission design of LiteBIRD, a next generation satellite for the study of B-mode polarization and inflation from cosmic microwave background radiation (CMB) detection. The science goal of LiteBIRD is to measure the CMB polarization with the sensitivity of delta r = 0.001, and this allows testing the major single-field slow-roll inflation models experimentally. The LiteBIRD instrumental design is purely driven to achieve this goal. At the earlier stage of the mission design, several key instrumental specifications, e.g. observing band, optical system, scan strategy, and orbit, need to be de fined in order to process the rest of the detailed design. We have gone through the feasibility studies for these items in order to understand the tradeoffs between the requirements from the science goal and the compatibilities with a satellite bus system. We describe the overview of LiteBIRD and discuss the tradeoffs among the choices of scientific instrumental specifications and strategies. The first round of feasibility studies will be completed by the end of year 2014 to be ready for the mission definition review and the target launch date is in early 2020s.

DOI： 10.1117/12.2055794

Web of Science

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MKIDと宇宙・素粒子実験への応用 (超伝導エレクトロニクス)

石野宏和, 羽澄昌史, 樹林敦子, 岐部佳朗, 美馬覚, 佐藤伸明, 吉田光宏, 渡辺宏記

電子情報通信学会技術研究報告 = IEICE technical report : 信学技報 113 ( 232 ) 17 - 20 2013年10月

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記述言語：日本語出版者・発行元：一般社団法人電子情報通信学会

Microwave Kinetic Inductance Detector (MKID)は、超伝導検出器の一種である。外部からのエネルギー付与によりクーパー対が解離されたとき、超伝導物質の力学的インダクタンスが変化する。MKIDは、超伝導薄膜でLC共振回路を組むことにより、このインダクタンスの変化を検出する検出器である。共振回路を用いることにより、周波数領域読み出しが可能となり、多重化が容易になる。本公演では、MKIDの検出原理の基本を紹介し、宇宙・素粒子実験への応用に向けたMKIDの開発現状を報告する。

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超伝導検出器Lumped Element Kinetic Inductance Detector(LEKID)の研究

岡本晃範, 石野宏和, 樹林敦子, 岐部佳朗, 山田要介, 羽澄昌史, 吉田光宏, 佐藤伸明, 都丸隆行, 渡辺広記, 有吉誠一郎, 大谷知行, 美馬覚, 野口卓

日本物理学会講演概要集 68 ( 2 ) 108 2013年8月

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記述言語：日本語

J-GLOBAL

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21aSR-15 超伝導検出器Lumped Element Kinetic Inductance Detector(LEKID)の研究(宇宙背景輻射(CMB),素粒子実験領域合同,宇宙線・宇宙物理領域,宇宙線・宇宙物理領域)

岡本晃範, 石野宏和, 樹林敦子, 岐部佳朗, 山田要介, 羽澄昌史, 吉田光宏, 佐藤伸明, 都丸隆行, 渡辺広記, 有吉誠一郎, 大谷知行, 美馬覚, 野口卓

日本物理学会講演概要集 68 ( 2 ) 108 - 108 2013年8月

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記述言語：日本語出版者・発行元：一般社団法人日本物理学会

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CMB偏光観測衛星LiteBIRDにおける系統誤差の研究 III

小栗秀悟, 木村公洋, 木村誠宏, 佐藤伸明, 鈴木敏一, 田島治, 茅根裕司, 都丸隆行, 永田竜, 羽澄昌史, 長谷川雅也, 服部香里, 松村知岳, 森井秀樹, 吉田光宏, 秋葉祥希, 石塚光, 井上優貴, 清水景絵, 渡辺広記, 高倉理, 河野功, 坂井真一郎, 佐藤洋一, 篠崎慶亮, 杉田寛之, 竹井洋, 西堀俊幸, 野田篤司, 福家英之, 松原英雄, 満田和久, 山崎典子, 吉田哲也, 四元和彦, 和田武彦, 石野宏和, 樹林敦子, 岐部佳朗, 高田卓

日本天文学会年会講演予稿集 2013 306 2013年8月

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記述言語：日本語

J-GLOBAL

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インフレーションを検証するCMB偏光観測小型科学衛星LiteBIRD

小栗秀悟, 木村誠宏, 佐藤伸明, 鈴木敏一, 田島治, 茅根裕司, 都丸隆行, 永田竜, 羽澄昌史, 長谷川雅也, 服部香里, 松村知岳, 森井秀樹, 吉田光宏, 秋葉祥希, 石塚光, 井上優貴, 清水景絵, 渡辺広記, 河野功, 坂井真一郎, 佐藤洋一, 篠崎慶亮, 杉田寛之, 竹井洋, 西堀俊幸, 野田篤司, 福家英之, 松原英雄, 満田和久, 山崎典子, 吉田哲也, 四元和彦, 高田卓, 永井誠, 石野宏和, 樹林敦子, 岐部佳朗, GHRIBI Adnan, HOLZAPFEL William

日本天文学会年会講演予稿集 2013 264 2013年2月

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記述言語：日本語

J-GLOBAL

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超伝導検出器の開発

石野宏和, 羽澄昌史, 美馬覚, 吉田光宏

高エネルギーニュース 32 ( 1 ) 24 - 33 2013年

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記述言語：日本語掲載種別：記事・総説・解説・論説等（その他）

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CMB偏光観測衛星LiteBIRDにおける系統誤差の研究 II

小栗秀悟, 木村誠宏, 佐藤伸明, 鈴木敏一, 田島治, 茅根裕司, 都丸隆行, 永田竜, 羽澄昌史, 長谷川雅也, 服部香里, 松村知岳, 森井秀樹, 吉田光宏, 秋葉祥希, 石塚光, 井上優貴, 清水景絵, 渡辺広記, 河野功, 坂井真一郎, 佐藤洋一, 篠崎慶亮, 杉田寛之, 竹井洋, 西堀俊幸, 野田篤司, 福家英之, 松原英雄, 満田和久, 山崎典子, 吉田哲也, 四元和彦, 高田卓, 永井誠, 石野宏和, 樹林敦子, 岐部佳朗, GHRIBI Adnan, HOLZAPFEL William

日本天文学会年会講演予稿集 2013 2013年

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J-GLOBAL

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C-2-76 高QのTwo-port Absorption Resonatorの設計と解析(C-2.マイクロ波B(マイクロ波・ミリ波受動デバイス),一般セッション)

石飛徳昌, 山田要介, 石野宏和, 和田光司

電子情報通信学会総合大会講演論文集 2012 ( 1 ) 117 - 117 2012年3月

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記述言語：日本語出版者・発行元：一般社団法人電子情報通信学会

CiNii Article

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Development of Superconducting Detectors for Measurements of Cosmic Microwave Background 査読

K. Hattori, M. Hazumi, H. Ishino, M. Kawai, A. Kibayashi, N. Kimura, S. Mima, T. Noguchi, T. Okamura, N. Sato, O. Tajima, T. Tomaru, H. Watanabe, M. Yoshida

PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON TECHNOLOGY AND INSTRUMENTATION IN PARTICLE PHYSICS (TIPP 2011) 37 1406 - 1412 2012年

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記述言語：英語出版者・発行元：ELSEVIER SCIENCE BV

We present our recent development of superconducting detectors for measurements of cosmic microwave background. We have fabricated antenna-coupled superconducting tunnel junctions (STJs). Two different types of STJs have been fabricated: the parallel-connected twin junction and the microstrip. Both types of STJs made of Nb and Al have successfully detected 80GHz millimeter wave radiation with photon-assisted tunneling. We have also developed microwave kinetic inductance detectors (MKIDs). The MKIDs offer us high multiplexing factors with a single readout line using the frequency-domain readout. We have developed abosrption-type and transmission-type MKIDs whose resonators are formed with either coplanar waveguides (CPW) or microstrips. The quality factor of the CPW MKID made of Nb is measured to be about 105. The microstrip MKID is being developed for the multichroic measurements. (C) 2012 Published by Elsevier B.V. Selection and/or peer review under responsibility of the organizing committee for TIPP 11.

DOI： 10.1016/j.phpro.2012.02.478

Web of Science

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LiteBIRD: A small satellite for the studies of B-mode polarization and inflation from cosmic background radiation detection 査読

M. Hazumi, J. Borrill, Y. Chinone, M. A. Dobbs, H. Fuke, A. Ghribi, M. Hasegawa, K. Hattori, M. Hattori, W. L. Holzapfel, Y. Inoue, K. Ishidoshiro, H. Ishino, K. Karatsu, N. Katayama, I. Kawano, A. Kibayashi, Y. Kibe, N. Kimura, K. Koga, E. Komatsu, A. T. Lee, H. Matsuhara, T. Matsumura, S. Mima, K. Mitsuda, H. Morii, S. Murayama, M. Nagai, R. Nagata, S. Nakamura, K. Natsume, H. Nishino, A. Noda, T. Noguchi, I. Ohta, C. Otani, P. L. Richards, S. Sakai, N. Sato, Y. Sato, Y. Sekimoto, A. Shimizu, K. Shinozaki, H. Sugita, A. Suzuki, T. Suzuki, O. Tajima, S. Takada, Y. Takagi, Y. Takei, T. Tomaru, Y. Uzawa, H. Watanabe, N. Yamasaki, M. Yoshida, T. Yoshida, K. Yotsumoto

SPACE TELESCOPES AND INSTRUMENTATION 2012: OPTICAL, INFRARED, AND MILLIMETER WAVE 8442 2012年

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記述言語：英語出版者・発行元：SPIE-INT SOC OPTICAL ENGINEERING

LiteBIRD [Lite (Light) satellite for the studies of B-mode polarization and Inflation from cosmic background Radiation Detection] is a small satellite to map the polarization of the cosmic microwave background (CMB) radiation over the full sky at large angular scales with unprecedented precision. Cosmological inflation, which is the leading hypothesis to resolve the problems in the Big Bang theory, predicts that primordial gravitational waves were created during the inflationary era. Measurements of polarization of the CMB radiation are known as the best probe to detect the primordial gravitational waves. The LiteBIRD working group is authorized by the Japanese Steering Committee for Space Science (SCSS) and is supported by JAXA. It has more than 50 members from Japan, USA and Canada. The scientific objective of LiteBIRD is to test all the representative inflation models that satisfy single-field slow-roll conditions and lie in the large-field regime. To this end, the requirement on the precision of the tensor-to-scalar ratio, r, at LiteBIRD is equal to or less than 0.001. Our baseline design adopts an array of multi-chroic superconducting polarimeters that are read out with high multiplexing factors in the frequency domain for a compact focal plane. The required sensitivity of 1.8 mu Karcmin is achieved with 2000 TES bolometers at 100mK. The cryogenic system is based on the Stirling/JT technology developed for SPICA, and the continuous ADR system shares the design with future X-ray satellites.

DOI： 10.1117/12.926743

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CMB偏光観測衛星LiteBIRD

竹井洋, 福家英之, 松原英雄, 満田和久, 山崎典子, 吉田哲也, 佐藤洋一, 篠崎慶亮, 杉田寛之, 河野功, 野田篤司, 四光和彦, 石野宏和, 樹林敦子, 岐部佳朗, 三澤尚典, 美馬覚, GHRIBI Adnan, HOLZAPFEL William, JOHNSON Bradley, LEE Adrian, NISHINO Haruki, RICHARDS Paul, SUZUKI Aritoki, BORRILL Julian, 大田泉, 吉田光宏, 石徹白晃治, 片山伸彦, 佐藤伸明, 田島治, 茅根裕司, 永井誠, 永田竜, 羽澄昌史, 長谷川雅也, 服部香里, 松村知岳, 森井秀樹, 木村誠宏

日本天文学会年会講演予稿集 2012 2012年

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CMB偏光観測衛星LiteBIRDにおける系統誤差の研究

竹井洋, 福家英之, 松原英雄, 満田和久, 山崎典子, 吉田哲也, 坂井真一郎, 佐藤洋一, 篠崎慶亮, 杉田寛之, 四元和彦, 河野功, 野田篤司, 石野宏和, 樹林敦子, 岐部佳朗, 三澤尚典, 美馬覚, GHRIBI Adnan, HOLZAPFEL William, JOHNSON Bradley, LEE Adrian, NISHINO Haruki, RICHARDS Paul, SUZUKI Aritoki, BORRILL Julian, 大田泉, 吉田光宏, 石徹白晃治, 片山伸彦, 佐藤伸明, 田島治, 茅根裕司, 永井誠, 永田竜, 羽澄昌史, 長谷川雅也, 服部香里, 松村知岳, 森井秀樹

日本天文学会年会講演予稿集 2012 2012年

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インフレーションを検証するCMB偏光観測小型科学衛星LiteBIRD

竹井洋, 福家英之, 松原英雄, 満田和久, 山崎典子, 吉田哲也, 佐藤洋一, 篠崎慶亮, 杉田寛之, 河野功, 野田篤司, 四元和彦, 石野宏和, 樹林敦子, 岐部佳朗, 三澤尚典, 美馬覚, GHRIBI Adnan, HOLZAPFEL William, JOHNSON Bradley, LEE Adrian, NISHINO Haruki, RICHARDS Paul, SUZUKI Aritoki, BORRILL Julian, 大田泉, 吉田光宏, 石徹白晃治, 片山伸彦, 佐藤伸明, 田島治, 茅根裕司, 永井誠, 永田竜, 羽澄昌史, 長谷川雅也, 服部香里, 松村知岳, 森井秀樹, 木村誠宏

日本天文学会年会講演予稿集 2012 2012年

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アンテナ結合アルミ超伝導トンネル接合素子(Al‐STJ)を用いたCMB偏光検出器の開発

美馬覚, 石野宏和, 樹林敦子, 羽澄昌史, 住澤一高, 樋口岳雄, 吉田光宏, 田島治, 渡辺広記, 佐藤広海, 大谷知行, 有吉誠一郎

低温工学・超電導学会講演概要集 81st 203 2009年11月

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記述言語：日本語

CiNii Article

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Radiation Resistance of SOI Pixel Devices Fabricated with OKI 0.15 mu m FD-SOI Technology 査読

K. Hara, M. Kochiyama, A. Mochizuki, T. Sega, Y. Arai, K. Fukuda, H. Hayashi, M. Hirose, J. Ida, H. Ikeda, Y. Ikegami, Y. Ikemoto, H. Ishino, Y. Kawai, T. Kohriki, H. Komatsubara, H. Miyake, T. Miyoshi, M. Ohno, M. Okihara, S. Terada, T. Tsuboyama, Y. Unno

2008 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE (2008 NSS/MIC), VOLS 1-9 644 - + 2009年

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記述言語：英語出版者・発行元：IEEE

Silicon-on-insulator (SOI) technology is being investigated for monolithic pixel device fabrication. The SOI wafers by UNIBOND allow the silicon resistivity to be optimized separately for the electronics and detector parts. We have fabricated pixel detectors using fully depleted SOI (FD-SOI) technology provided by OKI Semiconductor Co. Ltd. The first pixel devices consisting of 32 x 32 pixels each with 20 mu m square were irradiated with Co-60 gamma's up to 0.60 MGy and with 70-MeV protons up to 1.3 x 10(16) 1-MeV n(eq)/cm(2). The performance characterization was made on the electronics part and as a general detector from the response to RESET signals and to laser. The electronics operation was affected by radiation-induced charge accumulation in the oxide layers. Detailed evaluation using transistor test structures was separately carried out with covering a wider range of radiation level (0.12 kGy to 5.1 MGy) with Co-60 gamma's.

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Evidence for B0→χc1π0 at Belle

R. Kumar, J. B. Singh, I. Adachi, H. Aihara, K. Arinstein, T. Aushev, T. Aziz, A. M. Bakich, V. Balagura, A. Bay, V. Bhardwaj, U. Bitenc, A. Bozek, M. Bračko, T. E. Browder, A. Chen, B. G. Cheon, R. Chistov, I. S. Cho, Y. Choi, J. Dalseno, M. Dash, A. Drutskoy, W. Dungel, S. Eidelman, N. Gabyshev, P. Goldenzweig, B. Golob, H. Ha, J. Haba, K. Hayasaka, H. Hayashii, M. Hazumi, Y. Horii, Y. Hoshi, W. S. Hou, Y. B. Hsiung, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, D. H. Kah, J. H. Kang, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, S. K. Kim, Y. I. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Križan, P. Krokovny, A. Kuzmin, Y. J. Kwon, S. H. Kyeong, J. S. Lange, J. S. Lee, M. J. Lee, A. Limosani, S. W. Lin, D. Liventsev, R. Louvot, F. Mandl, A. Matyja, S. McOnie, T. Medvedeva, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, T. Mori, I. Nakamura, E. Nakano, H. Nakazawa, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, H. Ozaki, P. Pakhlov, G. Pakhlova, C. W. Park, H. Park, H. K. Park, R. Pestotnik, L. E. Piilonen, H. Sahoo, Y. Sakai, O. Schneider, A. Sekiya, K. Senyo, M. Shapkin, J. G. Shiu

Physical Review D - Particles, Fields, Gravitation and Cosmology 78 ( 9 ) 2008年11月

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We present a measurement of the branching fraction for the Cabibbo- and color-suppressed B0→χc1π0 decay based on a data sample of 657×106BB̄ events collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We observe a signal of 40±9 events with a significance of 4.7σ including systematic uncertainties. The measured branching fraction is B(B0→χc1π0)=(1. 12±0.25(stat)±0.12(syst.))×10-5. © 2008 The American Physical Society.

DOI： 10.1103/PhysRevD.78.091104

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Study of the suppressed B meson decay B-→DK-, D→K+π-

Y. Horii, K. Trabelsi, H. Yamamoto, I. Adachi, H. Aihara, K. Arinstein, V. Aulchenko, V. Balagura, E. Barberio, I. Bedny, K. Belous, V. Bhardwaj, U. Bitenc, S. Blyth, A. Bozek, M. Bračko, T. E. Browder, Y. Chao, A. Chen, W. T. Chen, B. G. Cheon, R. Chistov, I. S. Cho, S. K. Choi, Y. Choi, J. Dalseno, M. Dash, S. Eidelman, N. Gabyshev, H. Ha, J. Haba, T. Hara, K. Hayasaka, M. Hazumi, D. Heffernan, Y. Hoshi, W. S. Hou, H. J. Hyun, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwabuchi, M. Iwasaki, Y. Iwasaki, D. H. Kah, H. Kaji, J. H. Kang, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, S. K. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Križan, P. Krokovny, C. C. Kuo, Y. Kuroki, A. Kuzmin, Y. J. Kwon, J. S. Lee, M. J. Lee, S. E. Lee, T. Lesiak, J. Li, S. W. Lin, C. Liu, D. Liventsev, F. Mandl, S. McOnie, T. Medvedeva, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, G. R. Moloney, T. Nagamine, Y. Nagasaka, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, H. Ozaki, G. Pakhlova, C. W. Park, H. Park, H. K. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, H. Sahoo

Physical Review D - Particles, Fields, Gravitation and Cosmology 78 2008年10月

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We report a study of the suppressed B meson decay B-→DK- followed by D→K+π-, where D indicates a D0 or D̄0 state. The two decay paths interfere and provide information on the CP-violating angle 3. We use a data sample containing 657×106 BB̄ pairs recorded at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- storage ring. We do not find significant evidence for the mode B-→DK-, D→K+π-, and set an upper limit of rB<0.19, where rB is the magnitude of the ratio of amplitudes |A(B-→D̄0K-)/A(B-→D0K-)|. The decay B-→Dπ-, D→K+π- is also analyzed as a reference, for which we observe a signal with 6.6σ significance, and measure the charge asymmetry ADπ to be -0.02-0.16+0.15(stat)±0.04(syst). In addition, the ratio B(B-→D0K-)/B(B-→D0π-) is measured to be [6.77±0.23(stat) ±0.30(syst)]×10-2. © 2008 The American Physical Society.

DOI： 10.1103/PhysRevD.78.071901

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Observation of two resonancelike structures: Observation of two resonancelike structures in the Ic1 mass distribution in exclusive BA0K-I+Ic1

R. Mizuk, R. Chistov, I. Adachi, H. Aihara, K. Arinstein, V. Aulchenko, T. Aushev, A. M. Bakich, V. Balagura, E. Barberio, A. Bay, V. Bhardwaj, U. Bitenc, A. Bondar, A. Bozek, M. Bračko, J. Brodzicka, T. E. Browder, M. C. Chang, P. Chang, A. Chen, K. F. Chen, B. G. Cheon, C. C. Chiang, I. S. Cho, S. K. Choi, Y. Choi, J. Dalseno, M. Danilov, A. Drutskoy, S. Eidelman, D. Epifanov, P. Goldenzweig, B. Golob, H. Ha, J. Haba, K. Hayasaka, H. Hayashii, M. Hazumi, Y. Hoshi, W. S. Hou, Y. B. Hsiung, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, D. H. Kah, H. Kaji, J. H. Kang, T. Kawasaki, H. Kichimi, H. J. Kim, H. O. Kim, Y. I. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. KriŽan, P. Krokovny, R. Kumar, A. Kuzmin, Y. J. Kwon, S. H. Kyeong, J. S. Lange, J. S. Lee, M. J. Lee, S. W. Lin, C. Liu, Y. Liu, D. Liventsev, F. Mandl, S. McOnie, K. Miyabayashi, H. Miyata, Y. Miyazaki, E. Nakano, M. Nakao, H. Nakazawa, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Palka, C. W. Park, H. Park, H. K. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, A. Poluektov, H. Sahoo

Physical Review D - Particles, Fields, Gravitation and Cosmology 78 2008年10月

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© 2008 The American Physical Society. We report the first observation of two resonancelike structures in the π+χc1 invariant mass distribution near 4.1GeV/c2 in exclusive B¯0→K-π+χc1 decays. From a Dalitz plot analysis in which the π+χc1 mass structures are represented by Breit-Wigner resonance amplitudes, we determine masses and widths of: M1=(4051±14-41+20)MeV/c2, Γ1=(82-17-22+21+47)MeV, M2=(4248-29-35+44+180)MeV/c2, and Γ2=(177-39-61+54+316)MeV; and product branching fractions of B(B¯0→K-Z1,2+)×B(Z1,2+→π+χc1)=(3.0-0.8-1.6+1.5+3.7)×10-5 and (4.0-0.9-0.5+2.3+19.7)×10-5, respectively. Here the first uncertainty is statistical, the second is systematic. The significance of each of the π+χc1 structures exceeds 5σ, including the systematic uncertainty from various fit models. This analysis is based on 657×106 BB¯ events collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider.

DOI： 10.1103/PhysRevD.78.072004

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Measurement of the moments of the photon energy spectrum in B→Xsγ decays and determination of |Vcb| and mb at Belle

C. Schwanda, P. Urquijo, E. Barberio, A. Limosani, I. Adachi, H. Aihara, K. Arinstein, T. Aushev, S. Bahinipati, A. M. Bakich, V. Balagura, I. Bedny, K. Belous, U. Bitenc, A. Bondar, A. Bozek, M. Bračko, M. C. Chang, A. Chen, W. T. Chen, B. G. Cheon, R. Chistov, I. S. Cho, Y. Choi, J. Dalseno, M. Dash, A. Drutskoy, S. Eidelman, B. Golob, H. Ha, J. Haba, T. Hara, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, Y. Hoshi, W. S. Hou, H. J. Hyun, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, D. H. Kah, J. H. Kang, P. Kapusta, N. Katayama, H. Kichimi, H. J. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, Y. Kozakai, P. Križan, P. Krokovny, R. Kumar, C. C. Kuo, Y. Kuroki, A. Kuzmin, Y. J. Kwon, J. S. Lee, M. J. Lee, S. E. Lee, T. Lesiak, J. Li, C. Liu, D. Liventsev, F. Mandl, A. Matyja, S. McOnie, T. Medvedeva, W. Mitaroff, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, G. R. Moloney, E. Nakano, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, S. Noguchi, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, P. Pakhlov, G. Pakhlova, H. Palka, C. W. Park, H. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, H. Sahoo, Y. Sakai, O. Schneider

Physical Review D - Particles, Fields, Gravitation and Cosmology 78 2008年8月

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Using the previous Belle measurement of the inclusive photon energy in B→Xsγ decays, we determine the first and second moments of this spectrum for minimum photon energies in the B meson rest frame ranging from 1.8 to 2.3 GeV. Combining these measurements with recent Belle data on the lepton energy and hadronic mass moments in B→Xcℓν decays, we perform fits to theoretical expressions derived in the 1S and kinetic mass schemes and extract the magnitude of the Cabibbo-Kobayashi-Maskawa matrix element Vcb, the b-quark mass, and other nonperturbative parameters. In the 1S scheme analysis we find |Vcb|=(41.56±0.68(fit)±0.08(τB))×10-3 and mb1S=(4.723±0.055)GeV. In the kinetic scheme, we obtain |Vcb|=(41.58±0.69(fit)±0.08(τB)±0.58(th))×10-3 and mbkin=(4.543±0.075)GeV. © 2008 The American Physical Society.

DOI： 10.1103/PhysRevD.78.032016

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R&D of a pixel sensor based on 0.15 mu m fully depleted SOI technology

Toru Tsuboyama, Yasuo Arai, Koichi Fukuda, Kazuhiko Hara, Hirokazu Hayashi, Masashi Hazumi, Jiro Ida, Hirokazu Ikeda, Yoichi Ikegami, Hirokazu Ishino, Takeo Kawasaki, Takashi Kohriki, Hirotaka Komatsubara, Elena Martin, Hideki Miyake, Ai Mochizuki, Morifumi Ohno, Yuuji Saegusa, Hiro Tajima, Osamu Tajima, Tomiaki Takahashi, Susumu Terada, Yoshinobu Unno, Yutaka Ushiroda, Gary Varner

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 582 ( 3 ) 861 - 865 2007年12月

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記述言語：英語出版者・発行元：ELSEVIER SCIENCE BV

Development of a monolithic pixel detector based on Sol (silicon on insulator) technology was started at KEK in 2005. The substrate of the Sol wafer is used as a radiation sensor. At end of 2005, we submitted several test-structure group (TEG) chips for the 150 run, fully depleted CMOS process. The TEG designs and preliminary results are presented. (c) 2007 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.nima.2007.07.111

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Deep sub-micron FD-SOI for front-end application

H. Ikeda, Y. Arai, K. Hara, H. Hayakawa, K. Hirose, Y. Ikegami, H. Ishino, Y. Kasaba, T. Kawasaki, T. Kohriki, E. Martin, H. Miyake, A. Mochizuki, H. Tajima, O. Tajima, T. Takahashi, T. Takashima, S. Terada, H. Tomita, T. Tsuboyama, Y. Unno, H. Ushiroda, G. Varner

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 579 ( 2 ) 701 - 705 2007年9月

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記述言語：英語出版者・発行元：ELSEVIER SCIENCE BV

In order to confirm benefits of a deep sub-micron FD-SOI and to identify possible issues concerning front-end circuits with the FD-SOI, we have submitted a small design to Oki Electric Industry Co., Ltd. via the multi-chip project service of VDEC, the University of Tokyo. The initial test results and future plans for development are presented. (c) 2007 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.nima.2007.05.280

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Silicon vertex detector for the KEK super B factory

T. Tsuboyama, H. Aihara, T. Arakawa, Y. Asano, T. Aso, A. Bakich, M. Barbero, T. Browder, M. C. Chang, Y. Chao, K. F. Chen, S. Chidzik, A. Chouvikov, Y. K. Choi, A. Das, J. Dalseno, S. Fratina, M. Friedl, Y. Fujiyama, J. Haba, K. Hara, T. Hara, B. Harropl, K. Hayashi, M. Hazumi, D. Heffernan, T. Higuchi, T. Hirakawa, C. Irmler, H. Ishino, N. K. Joshi, S. Kajiwara, H. Kakuno, T. Kameshima, A. Kibayashl, Y. J. Kim, S. Koike, S. Korpar, P. Krizan, H. Kurashiro, A. Kusaka, D. Marlow, H. Miyake, G. R. Moloney, Y. Nakahama, Z. Natkaniec, S. Okuno, S. Ono, W. Ostrowicz, H. Ozaki, L. Peak, M. Pernicka, M. Rosen, M. Rozanska, N. Sato, S. Schmid, J. Schumann, S. Stanic, H. Steminger, K. Sumisawa, O. Tajima, T. Takahashi, N. Tamura, M. Tanaka, N. Tani, G. N. Taylor, K. Trabelsi, K. Uchida, K. Ueno, Y. Ushiroda, G. Varner, K. Varvell, Y. S. Velikzhanin, C. C. Wang, M. Z. Wang, M. Watanabe, Y. Watanabe, H. Yarnamoto, Y. Yamashita, T. Ziegler

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 572 ( 1 ) 321 - 324 2007年3月

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記述言語：英語出版者・発行元：ELSEVIER SCIENCE BV

In order to extend the physics reach of the present B factories, a letter of intent for a Super B factory, with a luminosity of 4 x 10(35) cm(-2) s(-1), was submitted in 2004. The paper summarizes recent progress in the design and technological solutions for the silicon vertex detector to be operated at the expected high data rate and background condition of a Super B factory. (c) 2006 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.nima.2006.10.308

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φ２を測る

石野宏和, 日下暁人

高エネルギーニュース 25 ( 4 ) 190 - 197 2007年

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記述言語：日本語掲載種別：記事・総説・解説・論説等（その他）

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29pWK-2 B中間子のフレーバー物理(29pWK 素粒子実験領域,素粒子論領域合同シンポジウム:2010年代のフレーバー物理,素粒子実験領域)

石野宏和

日本物理学会講演概要集 61 ( 1 ) 23 - 23 2006年3月

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記述言語：日本語出版者・発行元：一般社団法人日本物理学会

CiNii Article

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25aZB-3 Belle実験におけるB^0->π+π-崩壊を用いたCPの破れの測定(加速器・電磁石・ビームモニター,素粒子論)

石野宏和

日本物理学会講演概要集 60 ( 1 ) 23 - 23 2005年3月

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記述言語：日本語出版者・発行元：一般社団法人日本物理学会

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29pZA-8 Belle実験における新型シリコンバーテックス検出器のデータ収集システムの構築とその性能(DAQ・エレクトロニクス)(素粒子実験)

石野宏和

日本物理学会講演概要集 59 ( 1 ) 23 - 23 2004年3月

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記述言語：日本語出版者・発行元：一般社団法人日本物理学会

CiNii Article

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27pZA-10 Belle実験の最新の結果(レプトンフレーバ他・CDF-Belleの最新結果)(素粒子実験)

石野宏和

日本物理学会講演概要集 59 ( 1 ) 16 - 16 2004年3月

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記述言語：日本語出版者・発行元：一般社団法人日本物理学会

CiNii Article

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25aXH-8 Measurement of the Solar neutrino energy spectrum at Super-Kamiokande

石野宏和

日本物理学会講演概要集 55 ( 2 ) 20 - 20 2000年9月

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記述言語：日本語出版者・発行元：一般社団法人日本物理学会

CiNii Article

CiNii Books

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MEASUREMENT OF A SMALL ATMOSPHERIC MUON-NEUTRINO / ELECTRON-NEUTRINO RATIO 査読

Y. Fukuda, T. Hayakawa, E. Ichihara, K. Inoue, K. Ishihara, H. Ishino, Y. Itow, T. Kajita, J. Kameda, S. Kasuga, K. Kobayashi, Y. Kobayashi, Y. Koshio, K. Marterns, M. Miura, M. Nakahata, S. Nakayama, A. Okada, M. Oketa, K. Okumura, M. Ota, N. Sakurai, M. Shiozawa, Y. Suzuki, Y. Takeuchi, Y. Totsuka, S. Yamada, Tokyo U, ICRR M. Earl, Alec Habig, J.T. Hong, E. Kearns, S.B. Kim, M. Masuzawa, M.D. Messier, K. Scholberg, J.L. Stone, L.R. Sulak, C.W. Walter Boston, U, M. Goldhaber, Brookhaven T. Barszczak, W. Gajewski, P.G. Halverson, J. Hsu, W.R. Kropp, L.R. Price, F. Reines, H.W. Sobel, M.R. Vagins UC, Irvine K.S. Ganezer, W.E. Keig, Cal State, Dominguez Hills, R.W. Ellsworth George Mason, U, S. Tasaka Gifu, U, J.W. Flanagan, A. Kibayashi, J.G. Learned, S. Matsuno, V. Stenger, D. Takemori, Hawaii U, Inst. Astron, Honolulu T. Ishii, J. Kanzaki, T. Kobayashi, K. Nakamura, K. Nishikawa, Y. Oyama, A. Sakai, M. Sakuda, O. Sasaki KEK, Tsukuba S. E

Physics Letter B ( 433 ) 9-18 1998年

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記述言語：英語掲載種別：速報，短報，研究ノート等（学術雑誌）

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▼全件表示

講演・口頭発表等

超伝導検出器と微細加工技術を組み合わせた新型電子ニュートリノ検出器の開発招待

石野宏和

ニュートリノで拓く素粒子と宇宙研究会 2022年11月1日

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開催年月日： 2022年11月1日 - 2022年11月3日

記述言語：英語会議種別：口頭発表（招待・特別）

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超伝導技術と微細構造形成技術の合体による新しいニュートリノ物理学の展開招待

石野宏和

新学術領域「ニュートリノで拓く素粒子と宇宙」公募研究セミナー 2021年11月16日

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開催年月日： 2021年11月16日

記述言語：日本語会議種別：口頭発表（招待・特別）

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Development of an electron neutrino detector system using superconducting detectors and the surface microstructure forming technique

Hirokazu Ishino

19th International Workshop on Low Temperature Detectors 2021年7月29日

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開催年月日： 2021年7月19日 - 2021年7月29日

記述言語：英語会議種別：ポスター発表

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新学術領域「ニュートリノで拓く素粒子と宇宙」研究会

石野宏和

New Development of Neutrino Research Using Superconducting Technology 2020年12月22日

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開催年月日： 2020年12月21日 - 2020年12月22日

記述言語：日本語会議種別：ポスター発表

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LiteBIRD systematics 招待

Hirokazu ishino

CMB systematics and calibration focus workshop 2020年12月1日

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開催年月日： 2020年11月30日 - 2020年12月3日

記述言語：英語会議種別：口頭発表（招待・特別）

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超伝導技術とインジウム標的を組み合わせ電子ニュートリノ検出を目指す検出器開発

石野宏和

電子情報通信学会超伝導エレクトロニクス研究会（SCE） 2020年10月25日

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開催年月日： 2020年10月25日 - 2020年10月26日

記述言語：日本語会議種別：口頭発表（一般）

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宇宙の熱いビックバンの前を探るミリ波偏光全天観測衛星 LiteBIRD 招待

石野宏和

日本物理学会第77回年次大会 PTEPフレンドシップミーティング 2022年3月18日

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記述言語：日本語会議種別：口頭発表（招待・特別）

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CMB偏光観測衛星LiteBIRDと超伝導技術招待

石野宏和

量子エレクトロニクス研究会 2019年11月8日

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記述言語：日本語会議種別：口頭発表（招待・特別）

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LiteBIRD and development of superconducting detectors 招待

石野宏和

Fundamental Physics with Future CMB probes 2019年10月30日

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記述言語：英語会議種別：口頭発表（招待・特別）

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ニュートリノ物理研究を目指した超伝導検出器とニュートリノ標的の開発の概要

石野宏和

日本物理学会 2019年秋季大会 2019年9月17日

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記述言語：日本語会議種別：口頭発表（一般）

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液体ヘリウムを用いた暗黒物質の探索招待

石野宏和

TPC座談会 2019年3月22日

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記述言語：日本語会議種別：口頭発表（招待・特別）

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ミリ波の垂直入射に対する反射率測定

石野宏和

日本物理学会第74回年次大会 2019年3月16日

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記述言語：日本語会議種別：口頭発表（一般）

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CMBのレビュー招待

石野宏和

日本学術会議公開シンポジウム 2019年2月19日

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記述言語：日本語会議種別：シンポジウム・ワークショップパネル（指名）

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LiteBIRD:科学衛星を用いた宇宙マイクロ波背景放射偏光精密測定実験

石野宏和

応用物理・物理系学会中国四国支部合同学術講演会 2018年8月4日

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記述言語：日本語会議種別：口頭発表（一般）

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LiteBIRDの系統誤差の研究

石野宏和

日本物理学会第73回年次大会 2018年3月24日

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記述言語：日本語会議種別：口頭発表（一般）

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液体ヘリウムを用いた暗黒物質探索招待

石野宏和

日本物理学会第73回年次大会 2018年3月23日

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記述言語：日本語会議種別：シンポジウム・ワークショップパネル（指名）

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LiteBIRD systematics study 招待

石野宏和

B-MODE FROM SPACE WORKSHOP 2017年12月4日

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記述言語：英語会議種別：口頭発表（招待・特別）

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極低温SOI可視光センサーとCMB観測用光学系評価への応用

石野宏和

第8回SOIPIX研究会 2017年6月24日

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記述言語：日本語会議種別：口頭発表（一般）

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液体ヘリウムを用いた暗黒物質探索招待

石野宏和

CRCタウンミーティング 2017年6月24日

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記述言語：日本語会議種別：シンポジウム・ワークショップパネル（指名）

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宇宙背景放射偏光測定科学衛星実験で使用する部材の放射線耐性の研究

石野宏和

放医研成果報告会 2017年4月22日

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記述言語：日本語会議種別：口頭発表（一般）

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ＣＭＢ・解析パイプライン・系統誤差招待

石野宏和

天文学におけるデータ科学的方法 2017年4月22日

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記述言語：日本語会議種別：シンポジウム・ワークショップパネル（指名）

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LiteBIRD 招待

石野宏和

Why does the Universe accelerate? 2017年3月8日

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記述言語：英語会議種別：シンポジウム・ワークショップパネル（指名）

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LiteBIRD: Lite satellite for the study of B-mode polarization and Inflation from cosmic microwave background radiation detection 招待

石野宏和

Cosmic Polarimetry from Micro to Macro Scales 2017年2月17日

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記述言語：英語会議種別：シンポジウム・ワークショップパネル（指名）

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軽いDM探索のための液ヘリウムTPC

石野宏和

アクティブ媒質TPC開発座談会 2017年

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記述言語：日本語会議種別：口頭発表（招待・特別）

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Development of Superconducting Detectors for Dark Matter Searches using Liquid Helium

石野宏和

29th International Symposium on Superconductivity 2016年12月14日

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記述言語：英語会議種別：口頭発表（一般）

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極低温可視光センサーの開発

石野宏和

第7回SOI新学術領域研究会 2016年11月21日

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記述言語：日本語会議種別：口頭発表（一般）

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Development of Kinetic Inductance Detectors to search for dark matter

石野宏和

The 3rd International Workshop on Superconducting Sensors and Detectors 2016年11月12日

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記述言語：英語会議種別：口頭発表（一般）

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科学衛星LiteBIRDで探る原始重力

石野宏和

中四国合同学術講演会 2016年7月31日

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記述言語：日本語会議種別：口頭発表（一般）

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SOI技術を用いた極低温可視光センサーの開発

石野宏和

SOI新学術領域第６回研究会 2016年6月28日

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記述言語：日本語会議種別：口頭発表（一般）

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宇宙マイクロ波偏光：LiteBIRD 招待

石野宏和

高宇連第15 回研究会 2016年3月23日

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記述言語：日本語会議種別：シンポジウム・ワークショップパネル（指名）

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LiteBIRDにおけるシミュレーションを用いた系統誤差の評価

石野宏和

日本物理学会 2016年3月22日

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記述言語：日本語会議種別：口頭発表（一般）

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LiteBIRD simulation 招待

石野宏和

B mode from Space 2015年12月15日

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記述言語：英語会議種別：シンポジウム・ワークショップパネル（指名）

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SOIKID と超伝導検出器

石野宏和

新学術領域「量子イメージング」研究会 2015年12月1日

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記述言語：日本語会議種別：口頭発表（一般）

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LiteBIRD, Lite satellite for the study of B-mode polarization and In ation from cosmic microwave background Radiation Detection

石野宏和

12th Conference in the Symposium on Cosmology and Particle Astrophysics 2015年10月14日

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記述言語：英語会議種別：口頭発表（一般）

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LiteBIRD における解析プログラムの開発と1/f ノイズ・宇宙線グリッチによる影響

石野宏和

日本物理学会 2015年9月25日

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記述言語：日本語会議種別：口頭発表（一般）

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Study on the Lumped Element Kinetic Inductance Detector for Photon Detection

石野宏和

15th International Superconductive Electronics Conference 2015年6月8日

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記述言語：英語会議種別：ポスター発表

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SOIKID: SOI pixel detector combined with superconducting detector KID

石野宏和

International Workshop on SOI Pixel Detector (SOIPIX2015) 2015年6月2日

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記述言語：英語会議種別：口頭発表（一般）

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宇宙背景放射偏光測定科学衛星実験で使用する部材の放射線耐性の研究

石野宏和

平成26 年度HIMAC 共同利用研究成果発表会 2015年4月20日

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記述言語：日本語会議種別：口頭発表（一般）

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LiteBIRD におけるシミュレーションを用いた系統誤差の評価

石野宏和

日本物理学会 2015年3月24日

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記述言語：日本語会議種別：口頭発表（一般）

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SOIピクセルと超伝導検出器を合体したSOIKIDの開発

石野宏和

新学術領域「量子イメージング」研究会 2014年11月26日

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記述言語：日本語会議種別：口頭発表（一般）

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フォノン・フォトン検出用KID

石野宏和

超伝導エレクトロニクス研究会 2014年10月16日

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記述言語：日本語会議種別：口頭発表（一般）

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LiteBIRDにおける宇宙線と1/fノイズによる系統誤差の研究

石野宏和

日本物理学会 2014年秋季大会 2014年9月20日

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記述言語：日本語会議種別：口頭発表（一般）

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軽い暗黒物質探索を目指した超伝導光検出器と液体ヘリウムを用いたTPCの開発の概要

石野宏和

日本物理学会 2014年秋季大会 2014年9月20日

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記述言語：日本語会議種別：口頭発表（一般）

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Development of Microwave Kinetic Inductance Detectors for phonon and photon detections

石野宏和

TIPP2014 2014年6月5日

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記述言語：英語会議種別：口頭発表（一般）

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究極のエネルギー分解能を持つ大面積Ｘ線検出器の開発

石野宏和

SOI新学術領域第二回研究会 2014年5月9日

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記述言語：日本語会議種別：口頭発表（一般）

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検出効率を改善した超伝導フォノン検出器の開発

石野宏和

日本物理学会第69回年次大会 2014年3月28日

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記述言語：日本語会議種別：口頭発表（一般）

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MKIDと宇宙・素粒子実験への応用招待

石野宏和

電子情報通信学会超伝導エレクトロニクス研究会 2013年10月2日

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記述言語：日本語会議種別：口頭発表（招待・特別）

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スーパーカミオカンデにおける超新星爆発ニュートリノモニターの開発

石野宏和

日本物理学会秋季大会 2013年9月21日

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記述言語：日本語会議種別：口頭発表（一般）

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Latest Results from Super-Kamiokande 招待

石野宏和

The 12th Asia Pacific Physics Conference of AAPPS 2013年7月15日

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記述言語：英語会議種別：シンポジウム・ワークショップパネル（指名）

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Development of Microwave Kinetic Inductance Detectors for a detection of phonons in a substrate

石野宏和

Low Temperature Detectors 15 2013年6月25日

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記述言語：英語会議種別：ポスター発表

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超伝導フォノン検出器の開発４

石野宏和

日本物理学会 2013年3月27日

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記述言語：日本語会議種別：口頭発表（一般）

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超新星爆発ニュートリノ招待

石野宏和

新学術領域重力波A05班研究会 2013年1月8日

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記述言語：日本語会議種別：シンポジウム・ワークショップパネル（指名）

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LiteBIRDの通信系

石野宏和

宇宙科学技術連合講演会 2012年11月21日

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記述言語：日本語会議種別：口頭発表（一般）

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フォノン検出器の開発３

石野宏和

日本物理学会 2012年9月13日

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記述言語：日本語会議種別：口頭発表（一般）

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Supernova neutrino monitor at Super-Kamiokande

石野宏和

Neutrino2012 2012年6月5日

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記述言語：英語会議種別：ポスター発表

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超伝導フォノン検出器の開発2

石野宏和

日本物理学会秋季大会 2011年9月18日

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記述言語：日本語会議種別：口頭発表（一般）

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Developments of Aluminum Superconducting Tunnel Junction (STJ) detectors for millimeter wave and particle detections.

石野宏和

TIPP2011 2011年6月10日

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記述言語：英語会議種別：ポスター発表

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スーパーカミオカンデと超新星爆発ニュートリノ招待

石野宏和

超新星研究会2011 2011年3月1日

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記述言語：日本語会議種別：口頭発表（招待・特別）

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Super-Kamiokande Gadolinium R&D project：実証施設建設の現状

石野宏和

日本物理学会第65回年次大会 2010年9月13日

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記述言語：日本語会議種別：口頭発表（一般）

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スーパーカミオカンデ実験招待

石野宏和

東京大学宇宙線研究所共同利用研究発表会 2009年12月19日

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記述言語：日本語会議種別：シンポジウム・ワークショップパネル（指名）

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Gadolinium Study for Super-Kamiokande

石野宏和

31st International Cosmic Ray Conference 2009年7月14日

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記述言語：英語会議種別：口頭発表（一般）

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Development of an Antenna-coupled Al Superconducting Tunnel Junction for a detection of cosmic microwave background B-mode polarization

石野宏和

The 1st International conference on Technology and Instrumentation in Particle Physics 2009年3月14日

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記述言語：英語会議種別：口頭発表（一般）

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スーパーＢファクトリー実験での物理招待

石野宏和

研究会「Super KEKB が拓く物理」 2007年11月12日

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記述言語：日本語会議種別：口頭発表（招待・特別）

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Belle実験の新しい結果招待

石野宏和

ＫＥＫセミナー 2007年8月21日

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記述言語：日本語会議種別：口頭発表（招待・特別）

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Measurement of phi2 and phi3 招待

石野宏和

Lake Louise Winter Institute 2007 2007年2月21日

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記述言語：英語会議種別：口頭発表（招待・特別）

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SOI技術を用いたpixel検出器の開発（放射線検出による実験評価）

日本物理学会第６３回年次会 2007年

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高輝度Bファクトリー実験におけるB0→π0π0崩壊でのCPの破れ測定の研究

日本物理学会2007年度春季大会 2007年

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Belleシリコン検出器におけるπ0→γγを用いたphoton-conversionの研究

日本物理学会2007年度春季大会 2007年

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SOI技術を用いたpixel検出器の開発(1)（レーザー・放射線源を使用した実験評価）

本物理学会第62回年次大会 2007年

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B中間子のa1pi崩壊の分岐比の測定

日本物理学会2007年春季大会 2007年

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Silicon-On-Insulator Monolithic Pixel検出器の開発

日本物学会2007年度春季大会 2007年

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Silicon On Insulator(SOI)検出器におけるエレクトロニクスの放射線耐性の研究

日本物理学会2007年度春季大会 2007年

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シリコン検出器の放射線損傷の研究

日本物理学会2007年度春季大会 2007年

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New Measurements using Photon Conversion in a B Factory

日本物理学会2007年度春季大会 2007年

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SOI技術を用いたmonolithic pixel検出器の開発（γ線照射実験）

日本物理学会第６３回年次大会 2007年

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SOI技術を用いたmonolithic pixel検出器の開発(3)（陽子線照射実験）

日本物理学会第62回年次大会 2007年

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Belle実験におけるphoton-conversionの研究

日本物理学会第62回年次大会 2007年

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Summary of phi2 measurements at Super KEKB 招待

石野宏和

Workshop for B factories and New Measurements II 2006年12月18日

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記述言語：英語会議種別：口頭発表（招待・特別）

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WG4 experiment summary talk 招待

石野宏和

CKM 2006 Workshop On the Unitarity Triangle 2006年12月16日

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記述言語：英語会議種別：シンポジウム・ワークショップパネル（指名）

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Development of SOI pixel sensor

石野宏和

12th Workshop on Electronics for LHC and Future Experiments 2006年9月27日

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記述言語：英語会議種別：口頭発表（一般）

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New Measurement for phi2 招待

石野宏和

The International Workshop on B Factories and New Measurements 2006年9月13日

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記述言語：英語会議種別：口頭発表（招待・特別）

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phi2 and related measurements with Belle

石野宏和

XXXIII International Conference on High Energy Physics 2006年8月1日

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記述言語：英語会議種別：口頭発表（一般）

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Ｂ中間子のフレーバー物理招待

石野宏和

日本物理学会 2006年3月28日

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記述言語：日本語会議種別：シンポジウム・ワークショップパネル（指名）

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高ルミノシティー時におけるBelleシリコンバーテックス検出器の性能評価

日本物理学会第61回年次大会 2006年

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Belle実験でのシリコンバーッテクス検出器のアップグレードに伴う新型DSSDの開発研究

日本物理学会第61回年次回 2006年

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ＳＯＩ技術によるPixel検出器の開発

日本物理学会第61回年次回 2006年

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シリコン検出器の放射線耐性の研究

日本物理学会第61回年次回 2006年

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Improved Measurement on the CP-violating parameters in B0 -> pi+pi- decays at Belle

石野宏和

Joint Meeting on Pacific Region Particle Physics Communities 2006年

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記述言語：英語会議種別：口頭発表（一般）

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CP Violation in B0 -> pi+pi- 招待

石野宏和

CKM2005 Workshop on the unitarity triangle 2005年3月16日

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記述言語：英語会議種別：口頭発表（招待・特別）

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New Results from Belle 招待

石野宏和

2005 Aspen Winter Conference on Particle Physics 2005年1月17日

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記述言語：英語会議種別：口頭発表（招待・特別）

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Time Dependent CP Violation in B Decays 招待

石野宏和

8th International Workshop on Meson Production, Properties and Interaction 2004年6月6日

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記述言語：英語会議種別：口頭発表（招待・特別）

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Belle実験の最新の結果招待

石野宏和

日本物理学会 2004年3月29日

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記述言語：日本語会議種別：口頭発表（招待・特別）

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The data acquisition system of the Belle silicon vertex detector (SVD) upgrade

石野宏和

The 2003 IEEE Nuclear Science Symposium 2003年10月21日

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記述言語：英語会議種別：口頭発表（一般）

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The Belle Silicon Vertex Detector 招待

石野宏和

The 12th International Workshop on Vertex Detectors 2003年9月15日

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記述言語：英語会議種別：口頭発表（招待・特別）

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Vcb and Vub measurement 招待

石野宏和

XXXVII the Recontres de Moriond QCD and Hadronic interactions 2002年3月20日

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記述言語：英語会議種別：口頭発表（招待・特別）

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Belle実験のこれまでの結果と今後の展望招待

石野宏和

基研2001年度研究会「新世紀の素粒子像」 2001年7月

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記述言語：日本語会議種別：口頭発表（招待・特別）

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Measurement of the Solar neutrino energy spectrum at Super-Kamiokande 招待

石野宏和

日本物理学会 2000年9月

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記述言語：日本語会議種別：口頭発表（招待・特別）

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受賞

日本学術振興会平成26年度特別研究員等審査専門委員（書面担当）表彰

2015年

石野宏和

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高エネルギー物理学奨励賞

2000年9月

石野宏和

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共同研究・競争的資金等の研究

超伝導技術と微細構造形成技術の合体による新しいニュートリノ物理学の展開

研究課題/領域番号：21H00077 2021年04月 - 2023年03月

日本学術振興会科学研究費助成事業新学術領域研究(研究領域提案型) 新学術領域研究(研究領域提案型)

石野宏和

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配分額：7280000円（直接経費：5600000円、間接経費：1680000円）

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超伝導技術を利用したニュートリノ研究の新展開

2019年04月 - 2021年03月

科学研究費

石野宏和

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担当区分：研究代表者資金種別：競争的資金

配分額：6760000円（直接経費：5200000円、間接経費：1560000円）

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インフレーション探索に向けた半波長板変調式超電導転移端偏光計望遠鏡の開発

研究課題/領域番号：18KK0083 2018年10月 - 2023年03月

日本学術振興会科学研究費助成事業国際共同研究加速基金(国際共同研究強化(B))

松村知岳, 高倉理, 片山伸彦, 櫻井雄基, 石野宏和

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配分額：17810000円（直接経費：13700000円、間接経費：4110000円）

宇宙マイクロ波背景放射の偏光観測はインフレーション由来の原始重力波が生み出すB モード偏光パターンに対して感度を持つ。現在、地上、気球、そして衛星による観測計画が進行中であり、その発見に向けて世界的に熾烈な競争が行われている。本提案では、観測機器の鍵となる偏光変調器と焦点面超電導遷移端検出器を組み合わせた性能評価試験を行うことで、インフレーション仮説の検証実験の実現性を示す。コロナ禍による渡航を伴う研究ができないため、オンラインにて海外との共同研究者と議論を積み重ねることにより共同研究を進めている。
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具体的な成果は以下の通りである。CMB偏光観測のための偏光変調器の開発の一環として、モスアイ微細加工による広帯域反射防止膜の大面積化実証を行った。具体的には直径300mmの赤外アルミナフィルターを作成し、その両面にモスアイ微細構造をレーザーにて作成した。ミリ波特性として75から105 GHz帯域にて98%以上の透過率を実証した。この赤外アルミナフィルターは天文観測を目的とした米国グリーンバンク望遠鏡に搭載するMUSTANG2レシーバーに搭載することを想定し作成し、世界で初めてレーザーを用いたモスアイ微細加工反射防止機能ミリ波光学素子を低温ミリ波レシーバーに搭載し天文観測をおこなった例となった。この成果は米国ミネソタ大、東京大学の共同研究にて開発を行い、開発を主体的に進めた大学院生が主著者（Takaku et al.）としてOptics Expressに投稿した。また、この成果はプレスリリースとして公開された。また、米国バークレー校およびバークレー国立研究所と協力して100mK環境での超電導遷移端検出器と直流読み出しSQUIDを組み合わせた試験環境を構築した。

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宇宙マイクロ波背景放射LiteBIRD衛星搭載デジタル信号処理器評価システム開発

研究課題/領域番号：18K03715 2018年04月 - 2022年03月

日本学術振興会科学研究費助成事業基盤研究(C)

辻本匡弘, 石野宏和

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配分額：4420000円（直接経費：3400000円、間接経費：1020000円）

宇宙背景放射 (CMB) 偏光の大角度の回転方向異方性には、インフレーション理論が予測する原始重力波の密度分布が刻印されている。これを測定するのが LiteBIRD 衛星計画である。本研究では、同計画で必要となる軌道上信号処理のアルゴリズムを開発した。特に問題となる宇宙線信号の物理モデルを構築して擬似データを作成した。アルゴリズムの妥当性をその擬似データと市販ボードを用いた概念実証機で検証した。

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CMB偏光超精密観測に用いる非駆動型偏光変調器の開発

2017年04月 - 2019年03月

科学研究費

石野宏和

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担当区分：研究代表者資金種別：競争的資金

配分額：16250000円（直接経費：12500000円、間接経費：3750000円）

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SOI技術を用いた極低温可視光カメラと極低温光学系の開発

2016年04月 - 2018年03月

科学研究費

石野宏和

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担当区分：研究代表者資金種別：競争的資金

配分額：14430000円（直接経費：11100000円、間接経費：3330000円）

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宇宙マイクロ波背景放射の広天域観測で探る加速宇宙と大規模構造

研究課題/領域番号：15H05891 2015年06月 - 2020年03月

日本学術振興会科学研究費助成事業新学術領域研究(研究領域提案型)

羽澄昌史, 片山伸彦, 長谷川雅也, 関本裕太郎, 満田和久, 石野宏和

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配分額：419770000円（直接経費：322900000円、間接経費：96870000円）

本研究は宇宙マイクロ波背景放射を広域に渡り精密観測し、加速宇宙の本質を実験物理学の立場から探求することを目的とし、二つのプロジェクトを推進した。Simons Array（サイモンズ・アレイ）プロジェクトでは、新しい受信機をチリに移設し、観測を行い、高精度観測の礎を築くことに成功した。もう一つは日本主導の次世代衛星計画LiteBIRD（ライトバード）であり、概念検討と基礎開発を完了した。さらに、本領域の他の計画研究班との共創により、LiteBIRDが宇宙誕生の謎にまつわる新しい発見をもたらした場合の科学的インパクトを明らかにした。

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超伝導光検出器を用いた液体ヘリウムTPCの開発と軽い暗黒物質の探索

2014年04月 - 2019年03月

科学研究費

石野宏和

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担当区分：研究代表者資金種別：競争的資金

配分額：16770000円（直接経費：12900000円、間接経費：3870000円）

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究極のエネルギー分解能を持つ大面積X線検出器の開発

2014年04月 - 2016年03月

科学研究費

石野宏和

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担当区分：研究代表者資金種別：競争的資金

配分額：14300000円（直接経費：11000000円、間接経費：3300000円）

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超伝導検出器とSOIピクセル検出器を合体させた新規暗黒物質探索用検出器の開発

2014年04月 - 2016年03月

科学研究費

石野宏和

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担当区分：研究代表者資金種別：競争的資金

配分額：3770000円（直接経費：2900000円、間接経費：870000円）

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中性子同時計測を用いた超新星ニュートリノ観測

研究課題/領域番号：26000003 2014年 - 2019年

日本学術振興会科学研究費助成事業特別推進研究

中畑雅行, 小汐由介, 岸本康宏, ヴァギンズマーク, 池田一得, 中島康博, 竹内康雄, 作田誠, 石野宏和, マルチマグロジュイス, スミーミハエル, ラバルガルイス

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配分額：589420000円（直接経費：453400000円、間接経費：136020000円）

本研究では、スーパーカミオカンデ(SK)にガドリニウム(Gd)を導入して中性子を同時計測することにより、宇宙の初期から起きてきた超新星爆発によって蓄積されたニュートリノ(超新星背景ニュートリノ)の世界初観測を目指す。そのために、2018年度にSKタンクを改修してタンクの水漏れを止めるとともに、Gd溶解装置及びGdを含んだ水を循環・純化する装置を製作・設置した。また、放射性不純物の少ないGd_2(SO_4)_3の製造もおこなった。これらにより、2020年春より0.01%の濃度でGdを導入し、50%の中性子捕獲効率で観測を開始することができるようになった。

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超伝導技術を利用した実時間太陽ニュートリノ観測装置の開発

2012年04月 - 2014年03月

科学研究費

石野宏和

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担当区分：研究代表者資金種別：競争的資金

配分額：3770000円（直接経費：2900000円、間接経費：870000円）

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レニウムと超伝導検出器を用いたニュートリノ絶対質量の測定

研究課題/領域番号：22684009 2010年04月 - 2013年03月

日本学術振興会科学研究費若手研究(A)

石野宏和

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担当区分：研究代表者資金種別：競争的資金

配分額：25610000円（直接経費：19700000円、間接経費：5910000円）

ニュートリノは素粒子の一種でその性質は未だ謎で、その絶対質量さえ測定されていない。本研究では超伝導検出器を用いてニュートリノの質量を測定する野心的な研究を行うことを目的とする。超伝導検出器として超伝導結合素子と力学的インダクタンス検出器の開発を行った。前者は実機で測定したところ検出効率が予想より悪いことが分かった。一方で後者は、高い効率でフォノン信号を検出したが、精密なエネルギー測定にはより深い検出器の解釈が必要であることがわかった。

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超伝導技術を利用したトリチウム崩壊ニュートリノ質量測定用新式検出器の開発

研究課題/領域番号：22654028 2010年04月 - 2012年03月

日本学術振興会科学研究費挑戦的萌芽研究

石野宏和

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担当区分：研究代表者資金種別：競争的資金

配分額：3160000円（直接経費：2800000円、間接経費：360000円）

トリチウム崩壊におけるベータ線と反跳原子核のエネルギーを精度良く測定するために、超伝導検出器であるMKID(Microwave Kinetic Inductance Detector)の開発を行った。当初、大きな立体角を持つマイクロストリップ型のMKIDの開発を行ったが、本研究に必要な性能を満たす検出器を作製できなかった。詳細な研究の結果、絶縁層(SiO_2, Al_2O_3等)の誘電損失が原因であることがわかった。そこで、CPW(Coplanar waveguide)型で作製したところ、性能の良いMKIDの作製に成功し、可視光の照射による反応を確認した。

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初期宇宙探査のための超高感度アレイデバイスの研究開発

研究課題/領域番号：21111003 2009年07月 - 2014年03月

日本学術振興会科学研究費助成事業新学術領域研究(研究領域提案型)

大谷知行, 関本裕太郎, 石野宏和, 田島治, 岡村崇弘, 樋口岳雄, 都丸隆行, 美馬覚, 有吉誠一郎, 野口卓, 鵜沢佳徳, 唐津謙一, 吉田光宏, 服部香里, 岐部佳朗, 古川昇, 成瀬雅人

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配分額：539500000円（直接経費：415000000円、間接経費：124500000円）

CMB、CIRB観測用1,000画素クラス超伝導アレイ検出器開発を目指し、STJ検出器開発から開始したが、並行してMKIDs検出器を国内で初めて開発し、より良い感度とアレイ読み出しに成功した。そこでMKIDs検出器開発を進め、600素子アレイ(歩留まり95%)、720素子Siレンズ、無反射コート、4000 ch信号読み出しシステムを新規開発した。そして、電気的な雑音等価電力6e-18 W/√Hz、偏光に対する実測の雑音等価温度190 μK√sec(世界最高値)を達成した。また、CIRB用512素子アレイ、汎用FPGAを用いた読み出しシステム、GroundBIRD実験の開発を進めた。

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超新星背景ニュートリノの探索

研究課題/領域番号：21224004 2009年05月 - 2014年03月

日本学術振興会科学研究費助成事業基盤研究(S)

中畑雅行, 作田誠, 石野宏和, ヴァギンズマーク, 竹内康雄, 小汐由介, 竹田敦, 関谷洋之

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配分額：207870000円（直接経費：159900000円、間接経費：47970000円）

本研究の目的は、宇宙の初めから起きてきた超新星爆発からのニュートリノ(Supernova Relic Neutrino(SRN))を捉えるための開発研究である。SRNを捉えるにはスーパーカミオカンデ(SK)にガドリニウムを溶解させて反ニュートリノが反応した際に放出される陽電子と中性子を同時計測する必要がある。本研究ではＳＫを模擬したテストタンクを建設し、ガドリニウムを溶解し、水の透過率の測定、ガドリニウムを保持したまま水を純化させる方法の開発、放射性不純物の測定とその除去方法の開発をおこなった。

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bクォークからdクォークへの崩壊過程における新物理の探索

研究課題/領域番号：20039003 2008年04月 - 2010年03月

日本学術振興会科学研究費特定領域研究

石野宏和

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担当区分：研究代表者資金種別：競争的資金

配分額：2000000円（直接経費：2000000円）

Bファクトリー実験において、bクォークからdクォークへの遷移における新物理の探索を行うことがこの研究のである。研究代表者は、Bファクトリー実験(Belle実験)において、CPの破れの解析グループの元リーダーの一人として、CPの破れの測定から標準模型を超える物理の探索を行ってきた。アクティビティーとしては主に二つあり、一つはbクォークがsクォークへ遷移するときのCPの破れと、bクォークがuクォークへ遷移するときの分岐比及びCPの破れの測定である。両者は、本研究課題であるbからdクォークへの遷移の解析において、解析方法・物理的意義としての基盤を与える。前者の解析では、BO→KOpiOの解析の推進を行っていて、2010年に論文出版の運びとなった。後者については、B中間子がa1piという粒子に崩壊する過程において、海外の研究者(J.Dalseno, Max-Planck-Institute)と連絡を取り合いながら、進めていた。特に、a1粒子の解析方法についての取り扱いなどについて意見交換を行っていた。また、奈良女子大学准教授宮林謙吉氏を岡山大学にお招きし、Bファクトリー実験の現状と将来についての講演をして頂き、解析グループの現状や今後の指針などについて、意見交換を行った。また、国内・海外の研究者らと協力して、次期Bファクトリー実験(Belle II)で期待される物理についての論文(arXive:1002.5012)の一部の執筆を行った。特に、本研究課題と密接に関連するCPを破る位相φ2測定の部分について重点的に研究を行い、Belle II実験で得られるφ2の測定精度についての評価を行った。結果、その精度は約1度と見積もられた。これは、強い相互作用・電磁相互作用から来る理論的不定性と同レベルで、Belle II実験は小林・益川行列パラメータを究極の精度で求めることができ、なおかつ新物理にも十分感度を持つ実験であることが示せた。

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フレーバー物理研究のためのガンマ線電子対生成を用いた位置偏光検出器の研究

研究課題/領域番号：19740132 2007年04月 - 2009年03月

日本学術振興会科学研究費若手研究(B)

石野宏和

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担当区分：研究代表者資金種別：競争的資金

配分額：3780000円（直接経費：3300000円、間接経費：480000円）

本研究では、高輝度Bファクトリー実験において、ガンマ線が検出器中で対生成を起こす現象を利用して、クォーク間相互作用の研究方法に新しい測定手順を展開することを目指した。まず、中性B中間子が二つのπ0中間子に崩壊する過程において、対生成現象を利用して時間に依存するCPの破れを測定する方法を開発した。またB中間子がK*とγに崩壊する過程から標準模型を超える物理に対する制限を得るための条件を得た。SIO 技術を用いた新しい検出器の読み出しシステムの準備をおこなった。

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SoI技術を用いたピクセルセンサーの開発

研究課題/領域番号：18204027 2006年 - 2007年

日本学術振興会科学研究費助成事業基盤研究(A)

坪山透, 新井康夫, 海野義信, 羽澄昌史, 池田博一, 石野宏和

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配分額：35620000円（直接経費：27400000円、間接経費：8220000円）

SOI(silicon on insulator)はシリコンウエファ上にシリコン酸化膜を形成し、その上にCMOS回路を集積する半導体技術である。ウエファに高抵抗シリコンを用いPN接合を形成すると放射線がウエファ中に落とした信号を電気的に取り出すことが可能になる。その信号を酸化膜上部のCMOS回路で処理することで、粒子測定用ピクセルセンサーを開発することが本研究の目的である。半導体プロセスには(株)沖電気のIC量産ラインを用いることで、製造プロセスの信頼性と継続性を高めた。
平成18年には128x128ピクセルをもつピクセルセンサーおよび試験用チップを試作した。このセンサーを用いて、パルスレーザ光への高い感度が確認され、続いて行ったB線試験でも信号が確認された。またTCADシミュレーションを行い「不純物打ち込みエネルギーが高いほどブレークダウン耐性が向上する」という予想を得た。それに従って打ち込みエネルギーを変えたところ、予想通りの効果があり、試験チップではブレークダウン電圧が40Vから60Vに改善した。またSOICMOS回路の耐放射線性の試験の結果、CMOSトランジスタがガンマ線60MRadの照射後もウエファに補正電圧を与えることで動作可能であった。またピクセル読み出し回路にした場合も30MRadまで入力信号に対する応答があった。現在計画されているSuper KEKBのピクセルセンサーとしても使用可能なデバイスと考えられる。平成19年にはこれらの知見に基づきSuper B factoryでの使用を考慮したpixel sensorの設計・製造を行った。評価は始まったところであるが、IV特性などの静特性は良好だった。引き続き動的な特性を測るための試験を行う予定である。

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弱い相互作用の高次効果のみが寄与するB中間子崩壊過程でのCP非保存の研究

研究課題/領域番号：16740136 2004年04月 - 2006年03月

日本学術振興会科学研究費若手研究(B)

石野宏和

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担当区分：研究代表者資金種別：競争的資金

配分額：2900000円（直接経費：2900000円）

素粒子の標準模型の枠内では、CPの破れは小林・益川(KM)理論により説明できるとされている。本研究では高エネルギー加速器研究機構で行われているBelle実験において、B中間子の崩壊過程を詳しく調べることにより、KM理論を検証することを目的とする。
B中間子が二つの荷電π中間子に崩壊する過程は、弱い相互作用の1次の効果(bクォークがuクォークに遷移するツリー過程)と、Wゲージボソンがループをつくる2次の効果(bクォークがdクォークに遷移するペンギン過程、またはFlavor Changing Neutral Current)の両方が寄与すると考えられている。この結果、B中間子と反B中間子が二つの荷電π中間子に崩壊する確率が異なる直接的CPの破れが現れるかもしれない。本研究で直接的CPの破れの大きさを測ったところ、4σの有意性でCPが破れていることがわかり、b→d遷移のFCNCが存在することを世界で初めてつきとめた。中性B中問子の混合過程でのCPの破れを予言する理論はスーパーウィーク理論のようにKM理論以外にも存在したが、直接的CPの破れはKM理論特有の予言である。この研究により、少なくともスーパーウィーク理論は排除することができた。
KM理論は3×3のユニタリー行列を導入し、それは一つの複素位相を含んでいる。したがって、複素平面上で行列要素の関係を示すと三角形になる。このユニタリー三角形の内角と辺の長さを測ることにより、KM理論をさらに詳しく検証することができる。本研究では、上記のB→π^+π^-崩壊に加えてB→ρ^+ρ^-崩壊を用いて、三角形の頂角φ_2を測定した。その結果φ_2=93±12度を得た。他の角度や辺の長さからφ_2=97±15度と予想でき、二つの独立な測定は一致することが確かめられ、KM行列を10%強の精度で検証することができた。

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B中間子のFCNC崩壊過程における混合に起因するCP非保存の研究

研究課題/領域番号：16340069 2004年 - 2006年

日本学術振興会科学研究費助成事業基盤研究(B)

渡邊靖志, 石野宏和

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配分額：16400000円（直接経費：16400000円）

本研究の目的は、B中間子のFCNC(Flavor Changing Neutral Current)崩壊過程に注目し、いろいろな崩壊モードにおいてCP非対称性を測定し、標準理論の予言値と比較することによって標準理論を超える理論に迫ることであった。FCNC崩壊過程ではループダイヤグラムが支配的であることから、標準理論を超える粒子等の寄与に敏感であり、その寄与はCP非保存パラメータを大きく変える可能性が高い。その比較のためには、まずCP非保存パラメータを標準崩壊モードで精度良く測定しておく必要がある。本研究では、まずCP非保存パラメータφ2をB→π+π-、ρπ、ρρの崩壊モードを解析して精度よく測定することに集中した。そして約10%の精度で求めることに成功した。95%信頼度で決定したその値(97±11)°は、標準理論の小林・益川機構によるものと矛盾しないものだった。しかしながら、FCNC崩壊過程での測定については、本研究グループとしては十分解析できるまでには至れなかったことは残念である。しかしながら、Belleグループの他の研究グループと共同でそれらの解析に間接的に関わり、議論や論文化を通じて貢献した。
素粒子物理学における標準理論は1970年代半ばに定式化された。自然界に存在する4つの力のうち重力を除く3つの力を記述する強力で美しい理論である。CP非保存については、1973年に提唱された小林・益川機構により自然に標準理論の枠組みに組み込まれた。しかし、その実験的検証は困難であった。1999年から稼働を始めたKEKB加速器は世界一の輝度を誇り、Belle実験は現在まで順調にルミノシティを溜めて800fb-1に達し本研究のような検証を可能にした。

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Bファクトリーを用いた質量起源の探求

研究課題/領域番号：14046101 2002年 - 2005年

日本学術振興会科学研究費助成事業特定領域研究

相原博昭, 羽澄昌史, 石野宏和, 角野秀一, 岩崎昌子, 幅淳二

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配分額：200900000円（直接経費：200900000円）

1)bクォークのsクォークを含む終状態へ崩壊する過程である、3億8千6百万のB・反B中間子対から、B中間子がファイ中間子とKs6中間子、およびイータプライム中間子とKs中間子とに崩壊する反応を選び出し、それらのCP非対称を測定した。その結果、それらのCP非対称度の値が標準理論から期待される値からずれている可能性を得た。この結果は、標準理論を超える新しい物理につながる可能性があり、より一層の統計精度の向上が望まれる。
2)B中間子が荷電パイ中間子対に崩壊する過程のCP非対称の測定の統計精度を高め、直接的CP対称性の破れについての信頼度を高めた。2億7千5百万のB・反B中間子対の解析から得られた直接的CP非対称の大きさA=0.56+-0.12+-0.06は、この反応における直接的CPの破れを4σの統計的有意さで示している。
3)B中間子がストレンジネスを含むハドロンとレプトン対(電子・陽電子またはミューオン・反ミューオン)へ崩壊する電弱崩壊の精密測定を進めた。1億5千2百万のB・反B中間子対を解析することによって、その分岐比を(4.11+-0.83+0.85-0.81)×10^<-6>と決定した。この値を使って、いくつかの超対称性モデルに制限を与えることができる。さらに、B中間子がK*中間子とレプトン対に崩壊する反応のレプトンの角分布を測定し、角分布に前方後方非対称があることを世界で初めて示した。また、反応のWilson係数を決定し、新物理のモデルにも制限を与えた。

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シリコンバーテックス検出器によるトリガー生成の開発

研究課題/領域番号：13740148 2001年04月 - 2003年03月

日本学術振興会科学研究費若手研究(B)

石野宏和

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担当区分：研究代表者資金種別：競争的資金

配分額：2100000円（直接経費：2100000円）

B中間子を用いて物質と反物質の非対称性(CP非保存)を研究する実験(Belle実験)において、バックグランドをより多く落しB中間子のデータを効率良く取得するトリガーを開発中である。
平成15年度夏にBelle実験では新しいシリコンバーテックス検出器(SVD)を導入する予定である。新しいSVDは現行SVDに比べてシリコン検出器ストリップからのシグナルを直接波高弁別器にいれる機能を持っている。B中間子はある特定の位置範囲(4cm程度)のみに生成されるが、バックグランドは広範な範囲(20cm程度)から生成されるので、波高弁別器のアウトプットと検出器の位置の組合せにより、ある事象の生成位置を精度良く(2,3cm程度)しかも事象発生直後(長くても1μ秒以下)に求めることができる。
今年度は、次期SVDの組み立て、読みだし回路の開発をほぼ終えて、トリガーシグナルを生成するチップ(VA1TAチップ)の性能評価を行なった。VA1TAチップは内部に多数のパラメータ(プリアンプのシェーピングタイム、シェイパーバイアス、グローバル閾値等約10種類)を持っている。我々はそれらのパラメータを動かしてトリガー生成に最適な条件を見つけ出すのに多大な時間を費やした。思考錯誤の上、安定に動作できる閾値を約8000電子強(シリコン検出器を荷電粒子が通り抜けるときに生成する電子・ホールペアー数の平均の約1/3に相当する)まで下げることができた。この閾値はトリガー生成には十分に低い値である。また、β線をシリコン検出器にあててトリガー効率の測定を行なった。その結果期待通り90%以上の効率を得る事がわかった。今後はこれらのトリガー信号を組み合わせて事象位置を素早く求めるロジックの開発を行なう。

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CP非保存パラメータφ_2の測定

研究課題/領域番号：13440074 2001年 - 2003年

日本学術振興会科学研究費助成事業基盤研究(B)

渡邊靖志, 石野宏和, 鈴木聡

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配分額：13200000円（直接経費：13200000円）

本研究では,CP非保存パラメータφ_2の測定を目指していろいろな崩壊モードを解析した。実験は,つくばのBファクトリー加速器KEKBとBelle粒子検出器を用いて行った。KEKB加速器はデザインルミノシティ10^<34>cm^<-2>s^<-1>を2003年5月に達成し、その後も順調に記録を塗り替え、現在も世界一のルミノシティを誇っている。Belle実験は、2003年夏にシリコンバーテックス検出器を無事アップグレードし、現在さらにデータを蓄積中である。
本研究課題であるφ_2測定については、B^0(反B^0)中間子がπ^+π^-に崩壊するモードの統計を、2002年夏までの78fb^<-1>からほぼ4倍の253fb^<-1>(2004年夏現在)に増やし、CP非対称パラメータであるA_<ππ>とS_<ππ>について、次の結果を得た。
A_<ππ>=+0.56±0.12(統計)±0.06(系統)、S_<ππ>=-0.67±0.16(統計)±0.06(系統)
すなわち、J/ψK崩壊モードでのCP非保存の発見に続いてこの崩壊モードでもCP非保存を確認するとともに、A_<ππ>が有意に0から離れていることから、初めて直接的CPの破れを強く示唆する重要な結果を得た(>4σ)。同時に所期の目的φ_2の測定についても、アイソスピンの関係などを用いてその領域を制限することができた。この結果が他の間接的な総合結果と一致することから、標準理論の要めである小林・益川機構の正しさを支持する結果であると言える。
当グループは、上記の解析を主体的に行うとともに、φ_2の測定に向けてa_1πの崩壊モードを探索し,まずは分岐比を測定することができた。また,購入した計算機ファームをフル回転して大量のモンテカルロデータを分担生成した。さらに,崩壊粒子の親がB^0中間子なのか,それとも反B^0中間子なのかを高い効率で判定する方法,および,コンティニュームをさらに効率よく抑制するさらに改善された方法を考案するなど、全体の解析にも貢献した。ハード面では、アップグレードされたバーテックス検出器において、初めてその信号をトリガーに組み込む作業、および,その性能向上等でも大きく貢献した。

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つくば・神岡間長基線ニュートリノ振動実験におけるニュートリノの質量の研究

研究課題/領域番号：99J00222 1999年

日本学術振興会科学研究費助成事業特別研究員奨励費

石野宏和

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配分額：1500000円（直接経費：1500000円）

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スーパー神岡実験における過去の超新星爆発で生じた残在ニュートリノの研究

研究課題/領域番号：97J07355 1998年

日本学術振興会科学研究費助成事業特別研究員奨励費

石野宏和

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配分額：900000円（直接経費：900000円）

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▼全件表示

担当授業科目

力学１（2024年度）１・２学期 - 火1～2
力学１A （2024年度）第１学期 - 火1～2
力学１B （2024年度）第２学期 - 火1～2
力学２（2024年度）３・４学期 - 火1～2
力学２A （2024年度）第３学期 - 火1～2
力学２B （2024年度）第４学期 - 火1～2
基礎先端物理学１（2024年度）第３学期 - 火5
基礎先端物理学２（2024年度）第４学期 - 火5
宇宙物理学（2024年度）前期 - その他
宇宙物理学（2024年度）後期 - 月7～8
宇宙物理学演習（2024年度）その他 - その他
宇宙物理学演習（2024年度）通年 - その他
宇宙物理学演習（2024年度）通年 - その他
宇宙物理学特別演習（2024年度）通年 - その他
物理科学演習（2024年度）その他 - 火7～8
物理科学演習（2024年度）通年 - [前期]月7～8, [後期]火7～8
物理科学特別講義II （2024年度）集中 - その他
物理英語１（2024年度）３・４学期 - 火5
相対性理論２（2024年度）３・４学期 - 月3～4
相対性理論２A （2024年度）第３学期 - 月3～4
相対性理論２B （2024年度）第４学期 - 月3～4
素粒子・宇宙基礎論（2024年度）前期 - 月5～6
（L2）Study of Cosmic Microwave Background Polarization Measurement （2024年度）特別 - その他
基礎科学概論（物理学系）（2023年度）通年 - その他
宇宙物理学（2023年度）前期 - その他
宇宙物理学（2023年度）前期 - その他
宇宙物理学演習（2023年度）通年 - その他
宇宙物理学特別演習（2023年度）通年 - その他
振動波動（2023年度）１・２学期 - 月1～2
振動波動A （2023年度）第１学期 - 月1～2
振動波動B （2023年度）第２学期 - 月1～2
物理学への招待（2023年度）１・２学期 - 月9
相対性理論２（2023年度）３・４学期 - 月3～4
相対性理論２A （2023年度）第３学期 - 月3～4
相対性理論２B （2023年度）第４学期 - 月3～4
素粒子・宇宙基礎論（2023年度）前期 - 月5～6
素粒子・宇宙基礎論（2023年度）前期 - 月5～6
（L2）Study of Cosmic Microwave Background Polarization Measurement （2023年度）特別 - その他
先端基礎科学プログラミング実習（2022年度）集中 - その他
基礎科学概論（物理学系）（2022年度）通年 - その他
宇宙物理学（2022年度）前期 - その他
宇宙物理学（2022年度）後期 - 月1～2
宇宙物理学演習（2022年度）通年 - その他
情報物理学課題研究（2022年度）１・２学期 - その他
振動波動（2022年度）１・２学期 - 月1～2
振動波動A （2022年度）第１学期 - 月1～2
振動波動B （2022年度）第２学期 - 月1～2
数理物理科学ゼミナール（物理学系）（2022年度）前期 - その他
数理物理科学ゼミナール（物理学系）（2022年度）通年 - その他
数理物理科学特別研究（物理学系）（2022年度）前期 - その他
数理物理科学特別研究（物理学系）（2022年度）通年 - その他
物理学への招待（2022年度）１・２学期 - 月9
物理学課題研究（2022年度）特別 - その他
相対性理論２A （2022年度）第３学期 - 月3～4
相対性理論２B （2022年度）第４学期 - 月3～4
素粒子・宇宙基礎論（2022年度）前期 - 月5～6
基礎科学概論（物理学系）（2021年度）通年 - その他
宇宙物理学（2021年度）前期 - その他
宇宙物理学演習（2021年度）通年 - その他
情報物理学課題研究（2021年度）特別 - その他
振動波動（2021年度）１・２学期 - 月1,月2
振動波動A （2021年度）第１学期 - 月1,月2
振動波動B （2021年度）第２学期 - 月1,月2
数理物理科学ゼミナール（物理学系）（2021年度）通年 - その他
数理物理科学特別研究（物理学系）（2021年度）通年 - その他
物理学実験３（2021年度）１～４学期 - 木5,木6,木7,木8
物理学課題研究（2021年度）特別 - その他
物理科学入門（2021年度）３・４学期 - 火3,火4
物理科学入門A （2021年度）第３学期 - 火3,火4
物理科学入門B （2021年度）第４学期 - 火3,火4
相対性理論（2021年度）３・４学期 - 月3,月4
相対性理論２A （2021年度）第３学期 - 月3,月4
相対性理論２B （2021年度）第４学期 - 月3,月4
素粒子・宇宙基礎論（2021年度）前期 - 月5,月6
先端基礎科学プログラミング実習（2020年度）冬季集中 - その他
基礎科学概論（物理学系）（2020年度）通年 - その他
宇宙物理学（2020年度）前期 - その他
宇宙物理学（2020年度）後期 - 月1,月2
宇宙物理学演習（2020年度）通年 - その他
振動波動（2020年度）１・２学期 - 月1,月2
振動波動A （2020年度）第１学期 - 月1,月2
振動波動B （2020年度）第２学期 - 月1,月2
物理科学特別講義Ⅱ （2020年度）集中 - その他
相対性理論（2020年度）３・４学期 - 月3,月4
相対性理論２A （2020年度）第３学期 - 月3,月4
相対性理論２B （2020年度）第４学期 - 月3,月4
素粒子・宇宙基礎論（2020年度）前期 - 月5,月6

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教員免許状更新講習会

役割：助言･指導

2019年10月5日

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種別：資格認定講習

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役割：講師

2018年10月6日

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種別：資格認定講習

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役割：講師

放送大学 2017年12月9日 - 2017年12月10日

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種別：セミナー・ワークショップ

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役割：講師

2017年5月10日

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種別：講演会

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放送大学第一学期面接授業

役割：講師

放送大学 2016年4月30日 - 2016年5月1日

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種別：セミナー・ワークショップ

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岡山大学公開講座

役割：講師

2014年11月9日

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対象：社会人・一般

種別：講演会

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岡山大学理学部特別講演会

役割：講師

2012年8月1日

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対象：社会人・一般

種別：講演会

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サマーチャレンジ企画委員

役割：助言･指導

高エネルギー加速器研究機構 2009年4月 - 2014年3月

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対象：大学生

種別：研究指導

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