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Search for lepton flavor violating τ- decays into ℓ- η, ℓ- η′ and ℓ- π0
Physics Letters B, no. 5 (2007): 341-350
WOS SCOPUS
摘要
We have searched for lepton-flavor-violating τ decays with a pseudoscalar meson (η, η′ and π0) using a data sample of 401 fb−1 collected with the Belle detector at the KEKB asymmetric-energy e+e− collider. No evidence for these decays is found and we set the following upper limits on the branching fractions: B(τ−→e−η)<9.2×10−8, B(τ−→μ−η)<...更多
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