Measurement of branching fractions for B→ηcK(*) decays -: art. no. 071801

被引:34
|
作者
Fang, F [1 ]
Hojo, T
Abe, K
Abe, K
Abe, T
Adachi, I
Aihara, H
Akatsu, M
Asano, Y
Aso, T
Aulchenko, V
Bakich, AM
Ban, Y
Banas, E
Bay, A
Behera, PK
Bizjak, I
Bondar, A
Bozek, A
Bracko, M
Brodzicka, J
Browder, TE
Casey, BCK
Chang, P
Chao, Y
Chen, KF
Cheon, BG
Chistov, R
Choi, SK
Choi, Y
Choi, YK
Danilov, M
Drutskoy, A
Eidelman, S
Eiges, V
Enari, Y
Fukunaga, C
Gabyshev, N
Garmash, A
Gershon, T
Golob, B
Hara, T
Hastings, NC
Hayashii, H
Hazumi, M
Heenan, EM
Higuchi, T
Hinz, L
Hokuue, T
Hoshi, Y
机构
[1] Univ Hawaii, Honolulu, HI 96822 USA
[2] Budker Inst Nucl Phys, Novosibirsk 630090, Russia
[3] Chiba Univ, Chiba, Japan
[4] Chuo Univ, Tokyo 112, Japan
[5] Univ Cincinnati, Cincinnati, OH USA
[6] Univ Frankfurt, D-6000 Frankfurt, Germany
[7] Gyeongsang Natl Univ, Chinju, South Korea
[8] High Energy Accelerator Res Org, Tsukuba, Ibaraki, Japan
[9] Hiroshima Inst Technol, Hiroshima, Japan
[10] Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China
[11] Inst High Energy Phys, Vienna, Austria
[12] Inst Theoret & Expt Phys, Moscow 117259, Russia
[13] Jozef Stefan Inst, Ljubljana, Slovenia
[14] Kanagawa Univ, Yokohama, Kanagawa, Japan
[15] Korea Univ, Seoul 136701, South Korea
[16] Kyoto Univ, Kyoto, Japan
[17] Kyungpook Natl Univ, Taegu 702701, South Korea
[18] Univ Lausanne, Inst Phys Hautes Energies, Lausanne, Switzerland
[19] Univ Ljubljana, Ljubljana, Slovenia
[20] Univ Maribor, SLO-2000 Maribor, Slovenia
[21] Univ Melbourne, Parkville, Vic 3052, Australia
[22] Nagoya Univ, Nagoya, Aichi, Japan
[23] Nara Womens Univ, Nara 630, Japan
[24] Natl Lien Ho Inst Technol, Miaoli, Taiwan
[25] Natl Taiwan Univ, Taipei 10764, Taiwan
[26] H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland
[27] Nihon Dent Coll, Niigata, Japan
[28] Niigata Univ, Niigata, Japan
[29] Osaka City Univ, Osaka 558, Japan
[30] Osaka Univ, Osaka, Japan
[31] Panjab Univ, Chandigarh 160014, India
[32] Princeton Univ, Princeton, NJ 08544 USA
[33] RIKEN BNL Res Ctr, Brookhaven, NY USA
[34] Saga Univ, Saga 840, Japan
[35] Univ Sci & Technol China, Hefei 230026, Peoples R China
[36] Seoul Natl Univ, Seoul, South Korea
[37] Sungkyunkwan Univ, Suwon, South Korea
[38] Univ Sydney, Sydney, NSW 2006, Australia
[39] Toho Univ, Funabashi, Chiba 274, Japan
[40] Tohoku Gakuin Univ, Tagajo, Miyagi, Japan
[41] Tohoku Univ, Sendai, Miyagi 980, Japan
[42] Univ Tokyo, Tokyo, Japan
[43] Tokyo Inst Technol, Tokyo 152, Japan
[44] Tokyo Metropolitan Univ, Tokyo 158, Japan
[45] Tokyo Univ Agr & Technol, Tokyo, Japan
[46] Toyama Natl Coll Maritime Technol, Toyama, Japan
[47] Univ Tsukuba, Tsukuba, Ibaraki 305, Japan
[48] Utkal Univ, Bhubaneswar 751004, Orissa, India
[49] Virginia Polytech Inst & State Univ, Blacksburg, VA 24061 USA
[50] Yokkaichi Univ, Yokaichi, Japan
关键词
D O I
10.1103/PhysRevLett.90.071801
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We report measurements of branching fractions for charged and neutral B-->eta(c)K decays where the eta(c) meson is reconstructed in the K(S)(0)K(+/-)pi(-/+), K(+)K(-)pi(0), K(*0)K(-)pi(+), and p (p) over bar decay channels. The neutral B-0 channel is a CP eigenstate and can be used to measure the CP violation parameter sin2phi(1). We also report the first observation of the B-0-->eta(c)K(*0) mode. The results are based on an analysis of 29.1 fb(-1) of data collected by the Belle detector at KEKB.
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页数:6
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