研究者詳細 - 石野　宏和

論文 - 石野　宏和

分割表示 326 件中 261 - 280 件目／全件表示 >>

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Study of three-body charmless B decays 査読

A. Garmash, Belle Collaboration

PHYSICAL REVIEW D 65 ( 092005 ) 1 - 11 2002年4月

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

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

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

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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