Observation of BS0→φγ and search for BS0→γγ decays at Belle

被引：36

作者：

Wicht, J. ^{[17
]}

Adachi, I. ^{[8
]}

Aihara, H. ^{[40
]}

Arinstein, K. ^{[1
]}

Aulchenko, V. ^{[1
]}

Aushev, T.

Bakich, A. M. ^{[37
]}

Balagura, V. ^{[12
]}

Bay, A. ^{[17
]}

Belous, K. ^{[11
]}

Bhardwaj, V. ^{[32
]}

Bitenc, U.

Bondar, A. ^{[1
]}

Bozek, A. ^{[26
]}

Bracko, M. ^{[19
]}

Browder, T. E. ^{[7
]}

Chang, P. ^{[25
]}

Chao, Y. ^{[25
]}

Chen, A. ^{[23
]}

Chen, K. -F. ^{[25
]}

Chen, W. T. ^{[23
]}

Cheon, B. G. ^{[6
]}

Chistov, R. ^{[12
]}

Cho, I. -S. ^{[45
]}

Choi, Y. ^{[36
]}

Dalseno, J. ^{[20
]}

Dash, M. ^{[44
]}

Drutskoy, A. ^{[3
]}

Eidelman, S. ^{[1
]}

Gabyshev, N. ^{[1
]}

Goldenzweig, P. ^{[3
]}

Golob, B. ^{[18
]}

Haba, J. ^{[8
]}

Hayasaka, K. ^{[21
]}

Hazumi, M. ^{[8
]}

Heffernan, D. ^{[31
]}

Hoshi, Y. ^{[39
]}

Hou, W. -S. ^{[25
]}

Hsiung, Y. B. ^{[25
]}

Hyun, H. J. ^{[16
]}

Iijima, T. ^{[21
]}

Inami, K. ^{[21
]}

Ishikawa, A. ^{[33
]}

Ishino, H. ^{[41
]}

Itoh, R. ^{[8
]}

Iwasaki, Y. ^{[8
]}

Kah, D. H. ^{[16
]}

Kaji, H. ^{[21
]}

Kang, J. H. ^{[45
]}

Kapusta, P. ^{[26
]}

机构：

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

[2] Chiba Univ, Chiba, Japan

[3] Univ Cincinnati, Cincinnati, OH 45221 USA

[4] Univ Giessen, Giessen, Germany

[5] Grad Univ Adv Studies, Hayama, Japan

[6] Hanyang Univ, Seoul 133791, South Korea

[7] Univ Hawaii, Honolulu, HI 96822 USA

[8] Natl Lab High Energy Phys, KEK, Tsukuba, Ibaraki 305, Japan

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

[10] Inst High Energy Phys, Vienna, Austria

[11] Inst High Energy Phys, Protvino, Russia

[12] Inst Theoret & Expt Phys, Moscow, Russia

[13] Jozef Stefan Inst, Ljubljana, Slovenia

[14] Kanagawa Univ, Yokohama, Kanagawa, Japan

[15] Korea Univ, Seoul 136701, South Korea

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

[17] Ecole Polytech Fed Lausanne, CH-1015 Lausanne, Switzerland

[18] Univ Ljubljana, Fac Math & Phys, Ljubljana, Slovenia

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

[20] Univ Melbourne, Sch Phys, Melbourne, Vic 3010, Australia

[21] Nagoya Univ, Nagoya, Aichi, Japan

[22] Nara Womens Univ, Nara 630, Japan

[23] Natl Cent Univ, Chungli 32054, Taiwan

[24] Natl United Univ, Miaoli, Taiwan

[25] Natl Taiwan Univ, Dept Phys, Taipei, Taiwan

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

[27] Nippon Dent Univ, Niigata, Japan

[28] Niigata Univ, Niigata, Japan

[29] Univ Nova Gorica, Nova Gorica, Slovenia

[30] Osaka City Univ, Osaka 558, Japan

[31] Osaka Univ, Osaka, Japan

[32] Panjab Univ, Chandigarh 160014, India

[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] Toho Univ, Funabashi, Chiba 274, Japan

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

[40] Univ Tokyo, Dept Phys, Tokyo 113, Japan

[41] Tokyo Inst Technol, Tokyo 152, Japan

[42] Tokyo Metropolitan Univ, Tokyo 158, Japan

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

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

[45] Yonsei Univ, Seoul 120749, South Korea

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.100.121801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We search for the radiative penguin decays B(s)(0)->phi gamma and B(s)(0)->gamma gamma in a 23.6 fb(-1) data sample collected at the Upsilon(5S) resonance with the Belle detector at the KEKB e(+)e(-) asymmetric-energy collider. We observe for the first time a radiative penguin decay of the B(s)(0) meson in the B(s)(0)->phi gamma mode and we measure B(B(s)(0)->phi gamma)=(57(-15)(+18)(stat)(-11)(+12)(syst))x10(-6). No significant B(s)(0)->gamma gamma signal is observed and we set a 90% confidence level upper limit of B(B(s)(0)->gamma gamma)< 8.7x10(-6).

引用

页数：6

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