論文 - 石野　宏和

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

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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

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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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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

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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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