Search for the Lepton-Flavor-Violating Decay τ - → μ - η at Belle
Journal
Physical Review Letters
Journal Volume
93
Journal Issue
6
Pages
081803-1-081803-5
Date Issued
2004
Author(s)
Y. Enari et al. (Belle Collaboration)
Abstract
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.
Type
journal article