Search for leptonic decays of D0 mesons

被引：30

作者：

Petric, M. ^{[1
]}

Staric, M. ^{[1
]}

Adachi, I. ^{[8
]}

Aihara, H. ^{[41
]}

Arinstein, K. ^{[2
,30
]}

Aushev, T. ^{[12
,18
]}

Bakich, A. M. ^{[36
]}

Balagura, V. ^{[12
]}

Barberio, E. ^{[22
]}

Belous, K. ^{[11
]}

Bhardwaj, V. ^{[32
]}

Bracko, M. ^{[1
,20
]}

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

Chen, A. ^{[25
]}

Chen, P. ^{[26
]}

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

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

Choi, Y. ^{[35
]}

Dalseno, J. ^{[21
,38
]}

Danilov, M. ^{[12
]}

Das, A. ^{[37
]}

Dolezal, Z. ^{[3
]}

Drutskoy, A. ^{[4
]}

Dungel, W. ^{[10
]}

Eidelman, S. ^{[2
,30
]}

Gabyshev, N. ^{[2
,30
]}

Goldenzweig, P. ^{[4
]}

Golob, B. ^{[1
,19
]}

Ha, H. ^{[16
]}

Haba, J. ^{[8
]}

Hayashii, H. ^{[24
]}

Horii, Y. ^{[40
]}

Hoshi, Y. ^{[39
]}

Hou, W. -S. ^{[26
]}

Hyun, H. J. ^{[17
]}

Iijima, T. ^{[23
]}

Inami, K. ^{[23
]}

Itoh, R. ^{[8
]}

Iwabuchi, M. ^{[45
]}

Iwasaki, Y. ^{[8
]}

Joshi, N. J. ^{[37
]}

Julius, T. ^{[22
]}

Katayama, N. ^{[8
]}

Kawasaki, T. ^{[29
]}

Kiesling, C. ^{[21
]}

Kim, H. J. ^{[17
]}

Kim, H. O. ^{[17
]}

Kim, M. J. ^{[17
]}

Kim, S. K. ^{[34
]}

Ko, B. R. ^{[16
]}

机构：

[1] Jozef Stefan Inst, Ljubljana, Slovenia

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

[3] Charles Univ Prague, Fac Math & Phys, Prague, Czech Republic

[4] Univ Cincinnati, Cincinnati, OH 45221 USA

[5] Univ Giessen, Giessen, Germany

[6] Hanyang Univ, Seoul 133791, South Korea

[7] Univ Hawaii, Honolulu, HI 96822 USA

[8] High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki, 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] Kanagawa Univ, Yokohama, Kanagawa, Japan

[14] Karlsruhe Inst Technol, Karlsruhe, Germany

[15] Univ Karlsruhe, Inst Expt Kernphys, D-7500 Karlsruhe, Germany

[16] Korea Univ, Seoul, South Korea

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

[18] Ecole Polytech Fed Lausanne, Lausanne, Switzerland

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

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

[21] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany

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

[23] Nagoya Univ, Nagoya, Aichi 4648601, Japan

[24] Nara Womens Univ, Nara 630, Japan

[25] Natl Cent Univ, Chungli 32054, Taiwan

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

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

[28] Nippon Dent Univ, Niigata, Japan

[29] Niigata Univ, Niigata, Japan

[30] Novosibirsk State Univ, Novosibirsk 630090, Russia

[31] Osaka City Univ, Osaka 558, Japan

[32] Panjab Univ, Chandigarh 160014, India

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

[34] Seoul Natl Univ, Seoul, South Korea

[35] Sungkyunkwan Univ, Suwon, South Korea

[36] Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia

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

[38] Tech Univ Munich, Excellence Cluster Universe, D-8046 Garching, Germany

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

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

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

[42] Tokyo Metropolitan Univ, Tokyo 158, Japan

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

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

[45] Yonsei Univ, Seoul 120749, South Korea

来源：

PHYSICAL REVIEW D | 2010年 / 81卷 / 09期

基金：

中国国家自然科学基金; 新加坡国家研究基金会; 澳大利亚研究理事会; 瑞士国家科学基金会; 日本学术振兴会;

关键词：

BELLE; IDENTIFICATION;

D O I：

10.1103/PhysRevD.81.091102

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We search for the flavor-changing neutral current decays D-0 -> mu(+)mu(-) and D-0 -> e(+)e(-), and for the lepton-flavor violating decays D-0 -> e(+/-)mu(-/+) using 660 fb(-1) of data collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We find no evidence for any of these decays. We obtain significantly improved upper limits on the branching fractions: B(D-0 -> mu(+)mu(-)) < 1.4 x 10(-7), B(D-0 -> e(+)e(-)) < 7.9 x 10(-8), and B(D-0 -> e(+)mu(-)) + B(D-0 -> mu(+)e(-)) < 2.6 x 10(-7) at 90% confidence level.

引用

页数：6

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