Search for the Lepton-Flavor-Violating Decay τ-→μ-η at Belle
Search for the Lepton-Flavor-Violating Decay τ-→μ-η at Belle
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DOI:
10.1103/physrevlett.93.081803
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发表时间:
2004-04
影响因子:
8.6
通讯作者:
Y. Enari;E. al.
中科院分区:
文献类型:
--
作者:
Y. Enari;E. al.
We have searched for the lepton flavor violating decay tau(-)-->micro(-)eta using a data sample of 84.3 fb(-1) accumulated with the Belle detector at KEK. The eta meson was detected through the decay modes: eta-->gammagamma and pi(+)pi(-)pi(0). No signal candidates are found, and we obtain an upper limit for the branching fraction B(tau(-)-->micro(-)eta)<3.4 x 10(-7) at the 90% confidence level.