Search for B0→l+l- at the Belle detector -: art. no. 111101

被引：34

作者：

Chang, MC ^{[1
]}

Chang, P

Abe, K

Abe, T

Adachi, I

Aihara, H

Akatsu, M

Asano, Y

Aso, T

Aulchenko, V

Aushev, T

Bakich, AM

Bedny, I

Bizjak, I

Bondar, A

Bozek, A

Bracko, M

Brodzicka, J

Browder, TE

Chao, Y

Chen, KF

Cheon, BG

Chistov, R

Choi, SK

Choi, Y

Choi, YK

Chuvikov, A

Dong, LY

Eidelman, S

Eiges, V

Fukunaga, C

Gabyshev, N

Gershon, T

Gokhroo, G

Golob, B

Hara, T

Hayashii, H

Hazumi, M

Higuchi, T

Hinz, L

Hokuue, T

Hoshi, Y

Hou, WS

Hsiung, YB

Huang, HC

Iijima, T

Inami, K

Ishikawa, A

Itoh, R

Iwasaki, H

机构：

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

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

[3] Chiba Univ, Chiba, Japan

[4] Univ Cincinnati, Cincinnati, OH 45221 USA

[5] Gyeongsang Natl Univ, Chinju, South Korea

[6] Univ Hawaii, Honolulu, HI 96822 USA

[7] High Energy Accelerator Res Org, Tsukuba, Ibaraki, Japan

[8] Hiroshima Inst Technol, Hiroshima, Japan

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

[10] Inst High Energy Phys, Vienna, Austria

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

[12] Jozef Stefan Inst, Ljubljana, Slovenia

[13] Kanagawa Univ, Yokohama, Kanagawa, Japan

[14] Korea Univ, Seoul 136701, South Korea

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

[16] Univ Lausanne, Inst Phys Hautes Energies, Lausanne, Switzerland

[17] Univ Ljubljana, Ljubljana, Slovenia

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

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

[20] Nagoya Univ, Nagoya, Aichi, Japan

[21] Nara Womens Univ, Nara 630, Japan

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

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

[24] Nihon Dent Coll, Niigata, Japan

[25] Niigata Univ, Niigata, Japan

[26] Osaka City Univ, Osaka 558, Japan

[27] Osaka Univ, Osaka, Japan

[28] Panjab Univ, Chandigarh 160014, India

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

[30] Princeton Univ, Princeton, NJ 08545 USA

[31] Saga Univ, Saga 840, Japan

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

[33] Seoul Natl Univ, Seoul, South Korea

[34] Sungkyunkwan Univ, Suwon, South Korea

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

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

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

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

[39] Tohoku Univ, Sendai, Miyagi 980, 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] Toyama Natl Coll Maritime Technol, Toyama, Japan

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

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

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

[48] Yokkaichi Univ, Yokaichi, Japan

[49] Yonsei Univ, Seoul 120749, South Korea

来源：

PHYSICAL REVIEW D | 2003年 / 68卷 / 11期

关键词：

D O I：

10.1103/PhysRevD.68.111101

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report the results of a search for the decay B-0-->e(+)e(-), mu(+)mu(-) and e(+/-)mu(-/+) based on an analysis of 78 fb(-1) of data collected by the Belle detector at KEKB. No candidate events have been found. Upper limits on the branching fractions are calculated at the 90% confidence level: B(B-0-->e(+)e(-))<1.9x10(-7), <LF>B(B-0-->mu(+)mu(-))<1.6x10(-7), and B(B-0-->e(+/-)mu(-/+))<1.7x10(-7). A limit on the Pati-Salam leptoquark mass M-LQ>46 TeV/c(2) is obtained at the 90% confidence level.

引用

页数：5

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