A search for the rare leptonic decays B+→μ+νμ and B+→e+νe

被引：29
作者：
Satoyama, N. [1 ]
Abe, K.
Adachi, I.
Aihara, H.
Anipko, D.
Bakich, A. M.
Barberio, E.
Bedny, I.
Belous, K.
Bitenc, U.
Bizjak, I.
Bondar, A.
Bozek, A.
Bracko, M.
Browder, T. E.
Chang, M.-C.
Chang, P.
Chen, A.
Chen, W. T.
Cheon, B. G.
Chistov, R.
Choi, Y.
Choi, Y. K.
Cole, S.
Dalseno, J.
Dash, M.
Drutskoy, A.
Eidelman, S.
Fratina, S.
Gabyshev, N.
Gershon, T.
Go, A.
Gokhroo, G.
Ha, H.
Haba, J.
Hasegawa, Y.
Hayasaka, K.
Heffernan, D.
Hokuue, T.
Hoshi, Y.
Hou, S.
Hou, W.-S.
Iijima, T.
Ikado, K.
Inami, K.
Ishikawa, A.
Itoh, R.
Iwasaki, M.
Iwasaki, Y.
Kang, J. H.
机构：
[1] Budker Inst Nucl Phys, Novosibirsk 630090, Russia
[2] Chiba Univ, Chiba, Japan
[3] Chonnam Natl Univ, Kwangju, South Korea
[4] Univ Cincinnati, Cincinnati, OH USA
[5] Goethe Univ Frankfurt, D-6000 Frankfurt, Germany
[6] Fu Jen Catholic Univ, Dept Phys, Taipei, Taiwan
[7] Grad Univ Adv Studies, Hayama, Japan
[8] Univ Hawaii, Honolulu, HI 96822 USA
[9] High Energy Accelerator Res Org, KEK, Tsukuba, Ibaraki, Japan
[10] Univ Illinois, Urbana, IL 61801 USA
[11] Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China
[12] Inst High Energy Phys, Protvino, Russia
[13] Inst High Energy Phys, Vienna, Austria
[14] Inst Theoret & Expt Phys, Moscow, Russia
[15] Jozef Stefan Inst, Ljubljana, Slovenia
[16] Kanagawa Univ, Yokohama, Kanagawa, Japan
[17] Korea Univ, Seoul 136701, South Korea
[18] Kyungpook Natl Univ, Taegu 702701, South Korea
[19] Ecole Polytech Fed Lausanne, Swiss Fed Inst Technol, CH-1015 Lausanne, Switzerland
[20] Univ Ljubljana, Ljubljana, Slovenia
[21] Univ Maribor, SLO-2000 Maribor, Slovenia
[22] Univ Melbourne, Melbourne, Vic, Australia
[23] Nagoya Univ, Nagoya, Aichi, Japan
[24] Nara Womens Univ, Nara, Japan
[25] Natl Cent Univ, Chungli 32054, Taiwan
[26] Natl United Univ, Miaoli, Taiwan
[27] Natl Taiwan Univ, Dept Phys, Taipei 10764, Taiwan
[28] H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland
[29] Nippon Dent Univ, Niigata, Japan
[30] Niigata Univ, Niigata, Japan
[31] Univ Nova Gorica, Nova Gorica, Slovenia
[32] Osaka City Univ, Osaka 558, Japan
[33] Osaka Univ, Osaka, Japan
[34] Panjab Univ, Chandigarh 160014, India
[35] Peking Univ, Beijing 100871, Peoples R China
[36] RIKEN, BNL Res Ctr, Brookhaven, NY USA
[37] Saga Univ, Saga 840, Japan
[38] Univ Sci & Technol China, Hefei 230026, Peoples R China
[39] Seoul Natl Univ, Seoul, South Korea
[40] Shinshu Univ, Nagano, Japan
[41] Sungkyunkwan Univ, Suwon, South Korea
[42] Univ Sydney, Sydney, NSW 2006, Australia
[43] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India
[44] Toho Univ, Funabashi, Chiba 274, Japan
[45] Tohoku Gakuin Univ, Tagajo, Miyagi, Japan
[46] Tohoku Univ, Sendai, Miyagi 980, Japan
[47] Univ Tokyo, Dept Phys, Tokyo 113, Japan
[48] Tokyo Inst Technol, Tokyo 152, Japan
[49] Tokyo Metropolitan Univ, Tokyo 158, Japan
[50] Tokyo Univ Agr & Technol, Tokyo, Japan
来源：
PHYSICS LETTERS B | 2007年 / 647卷 / 2-3期
基金：
日本学术振兴会; 中国国家自然科学基金; 澳大利亚研究理事会; 新加坡国家研究基金会;
关键词：
leptonic; B decay;
D O I：
10.1016/j.physletb.2007.01.068
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present a search for the decays B+ -> mu(+)nu(mu) and B+ -> e(+)nu(e) in a 253 fb(-1) data sample collected at the Y(4S) resonance with the Belle detector at the KEKB asymmetric-energy B factory. We find no significant evidence for a signal and set 90% confidence level upper limits of B(B+ ->mu(+)nu(mu)) < 1.7 x 10(-6) and B(B+ -> e(+)nu(e)) < 9.8 x 10(-7). (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：67 / 73
页数：7
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