期刊
PHYSICS LETTERS B
卷 613, 期 1-2, 页码 20-28出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2005.03.028
关键词
decays of taus; lepton number; taus
We have searched for the lepton-flavor-violating decay tau -> e gamma using a data sample of 86.7 fb(-1) collected with the Belle detector at the KEKB asymmetric e(+)e(-) collider. No evidence for a signal is obtained, and we set an upper limit for the branching fraction B(tau -> e gamma) < 3.9 x 10(-7) at the 90% C.L. (c) 2005 Elsevier B.V. All rights reserved.
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