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Upper bound on the decay tau-->microgamma from the Belle detector |
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| Authors: | Abe K Abe K Abe T Adachi I Ahn Byoung Sup Aihara H Akai K Akatsu M Akemoto M Asano Y Aso T Aulchenko V Aushev T Bakich A M Ban Y Banerjee S Bay A Bedny I Bizjak I Bondar A Bozek A Bracko M Browder T E Chao Y Chen K-F Cheon B G Chistov R Choi S-K Choi Y Choi Y K Chuvikov A Danilov M Dong L Y Drutskoy A Eidelman S Eiges V Enari Y Flanagan J Fukunaga C Furukawa K Gabyshev N Garmash A Gershon T Guo R Haba J Hagner C Handa F Hayashii H Hazumi M Hokuue T Hoshi Y Hou W-S Huang H-C Iijima T Ikeda H Inami K Ishikawa A Itoh R Iwasaki H Iwasaki M Iwasaki Y Kang J H Kang J S Katayama N Kawai H Kawasaki T |
| Institution: | High Energy Accelerator Research Organization (KEK), Tsukuba, Japan. |
| Abstract: | We have performed a search for the lepton-flavor-violating decay tau-->microgamma using a data sample of 86.3 fb(-1) accumulated by the Belle detector at KEK. No evidence for a signal is seen, and we set an upper limit for the branching fraction of B(tau-->microgamma)<3.1 x 10(-7) at the 90% confidence level. |
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