New Search for tau -> mu gamma and tau -> e gamma Decays at Belle
classification
✦ hep-ex
keywords
gammatau-belledecayssearchaccumulatedbranchingconfidence
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We report on a search for the lepton flavor violating tau- -> mu- gamma and tau- -> e- gamma decays based on 535/fb of data accumulated at the Belle experiment. No signal is found and we set 90% confidence level upper limits on the branching ratios Br(tau- -> mu- gamma) < 4.5x10^-8 and Br(tau- -> e- gamma) < 1.2x10^-7.
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