Search for tau -> e gamma decay at Belle
arXiv:hep-ex/0501068 · doi:10.1016/j.physletb.2005.03.028
Abstract
We have searched for the lepton-flavor-violating decay tau -> e gamma using a data sample of 86.7/fb 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 Br(tau -> e gamma) < 3.9 x 10^-7 at the 90% C.L.
11 pages, 10 figures, ReVTeX4, epsf