期刊
PHYSICS LETTERS B
卷 666, 期 1, 页码 16-22出版社
ELSEVIER
DOI: 10.1016/j.physletb.2008.06.056
关键词
decays of taus; lepton number; taus
资金
- Ministry of Education, Culture, Sports, Science, and Technology of Japan
- Japan Society for the Promotion of Science
- Australian Research Council and the Australian Department of Education, Science and Training
- National Science Foundation of China
- Chinese Academy [10575109]
- Department of Science and Technology of India
- Ministry of Education of Korea
- Korea Science and Engineering Foundation [R01-2005-000-10089-0]
- Polish State Committee for Scientific Research [2PO3B 01324]
- Ministry of Science and Technology of the Russian Federation
- Slovenian Research Agency
- Swiss National Science Foundation
- National Science Council
- Ministry of Education of Taiwan
- US Department of Energy
- [IHEP-U-503]
- National Research Foundation of Korea [R01-2005-000-10089-0, R11-2000-077-01003-0, 과06A1104] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
We report on a search for the lepton flavor violating tau(-) -> mu(-)gamma and tau(-) -> e(-)gamma decays based on 535 fb(-1) of data accumulated at the Belle experiment. No signal is found and we set 90% confidence level upper limits on the branching ratios B(tau(-) -> mu(-)gamma) < 4.5 x 10(-8) and B(tau(-) -> e(-)y) < 1.2 x 10(-7). (c) 2008 Elsevier B.V. All rights reserved.
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