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

被引：34

作者：

Fang, F ^{[1
]}

Hojo, T

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

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 90卷 / 07期

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.

引用

页数：6

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