Observation of B±→ωK± decay -: art. no. 191801

被引：0

作者：

Lu, RS ^{[1
]}

Abe, K

Abe, N

Abe, R

Abe, T

Adachi, I

Aihara, H

Asano, Y

Aso, T

Aulchenko, V

Aushev, T

Bakich, AM

Ban, Y

Banas, E

Bedny, I

Behera, PK

Bizjak, I

Bondar, A

Bozek, A

Bracko, M

Browder, TE

Casey, BCK

Chang, MC

Chang, P

Chao, Y

Chen, KF

Cheon, BG

Chistov, R

Choi, SK

Choi, Y

Choi, YK

Danilov, M

Dong, LY

Drutskoy, A

Eidelman, S

Eiges, V

Everton, CW

Fukunaga, C

Gabyshev, N

Gershon, T

Golob, B

Gordon, A

Guo, R

Haba, J

Hara, T

Harada, Y

Hayashii, H

Hazumi, M

Heenan, EM

机构：

[1] Natl Taiwan Univ, Taipei 10764, Taiwan

[2] Aomori Univ, Aomori, Japan

[3] Budker Inst Nucl Phys, Novosibirsk 630090, Russia

[4] Chiba Univ, Chiba, Japan

[5] Chuo Univ, Tokyo 112, Japan

[6] Univ Cincinnati, Cincinnati, OH USA

[7] Gyeongsang Natl Univ, Chinju, South Korea

[8] Univ Hawaii, Honolulu, HI 96822 USA

[9] KEK, High Energy Accelerator Res Org, Tsukuba, Ibaraki, Japan

[10] Hiroshima Inst Technol, Hiroshima, Japan

[11] Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China

[12] Inst High Energy Phys, Vienna, Austria

[13] Inst Theoret & Expt Phys, Moscow 117259, Russia

[14] Jozef Stefan Inst, Ljubljana, Slovenia

[15] Kanagawa Univ, Yokohama, Kanagawa, Japan

[16] Korea Univ, Seoul 136701, South Korea

[17] Kyoto Univ, Kyoto, Japan

[18] Kyungpook Natl Univ, Taegu 702701, South Korea

[19] Univ Lausanne, Inst Phys Hautes Energies, CH-1000 Lausanne, Switzerland

[20] Univ Ljubljana, Ljubljana, Slovenia

[21] Univ Maribor, SLO-2000 Maribor, Slovenia

[22] Univ Melbourne, Parkville, Vic 3052, Australia

[23] Nagoya Univ, Nagoya, Aichi, Japan

[24] Nara Womens Univ, Nara 630, Japan

[25] Natl Lien Ho Inst Technol, Miaoli, Taiwan

[26] H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland

[27] Nihon Dent Coll, Niigata, Japan

[28] Niigata Univ, Niigata, Japan

[29] Osaka Univ, Osaka, Japan

[30] Osaka City Univ, Osaka 558, Japan

[31] Panjab Univ, Chandigarh 160014, India

[32] Peking Univ, Beijing 100871, Peoples R China

[33] Saga Univ, Saga 840, Japan

[34] Univ Sci & Technol China, Hefei 230026, Peoples R China

[35] Seoul Natl Univ, Seoul, South Korea

[36] Sungkyunkwan Univ, Suwon, South Korea

[37] Univ Sydney, Sydney, NSW 2006, Australia

[38] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India

[39] Toho Univ, Funabashi, Chiba 274, Japan

[40] Tohoku Gakuin Univ, Tagajo, Miyagi, Japan

[41] Tohoku Univ, Sendai, Miyagi 980, Japan

[42] Tokyo Inst Technol, Tokyo 152, Japan

[43] Tokyo Metropolitan Univ, Tokyo 158, Japan

[44] Tokyo Univ Agr & Technol, Tokyo, Japan

[45] Toyama Natl Coll Maritime Technol, Toyama, Japan

[46] Univ Tsukuba, Tsukuba, Ibaraki 305, Japan

[47] Utkal Univ, Bhubaneswar 751004, Orissa, India

[48] Virginia Polytech Inst & State Univ, Blacksburg, VA 24061 USA

[49] Yokkaichi Univ, Yokaichi, Japan

[50] Yonsei Univ, Seoul 120749, South Korea

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 19期

关键词：

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the first observation of the charmless two-body mode B+/- --> omegaK(+/-) decay, and a new measurement of the branching fraction for the B+/- --> omegapi(+/-) decay. The measured branching fractions are B(B+/- --> omegaK(+/-)) = (9.2(-2.3)(+2.6) +/-1.0) x 10(-6) and B(B+/- --> omegapi(+/-)) = (4.2(-1.8)(+2.0) +/- 0.5) x 10(-6). We also measure the partial rate asymmetry of B+/- --> omegaK(+/-) decays and obtain A(CP) = -0.21 +/- 0.28 +/- 0.03. The results are based on a data sample of 29.4 fb(-1) collected on the Y(4S) resonance by the Belle detector at the KEKB e(+)e(-) collider.

引用

页数：6

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