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Search for Lepton Flavor Violating tau- Decays Including with a K0s Meson

K. Abe
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Abstract

We have searched for the tau lepton flavor violating decays tau- -> l-K0s (l = e or mu), using a data sample of 281 fb^-1 collected with the Belle detector at the KEKB e+e- asymmetric-energy collider. No evidence for a signal was found in either of the decay modes, and we set the following upper limits for the branching fractions: B(tau- -> e-K0s) < 5.6 * 10^-8 and B(tau- -> m^-K0s) < 4.9 * 10^-8 at the 90% confidence level. These results are improvements by factors of 16 and 19, respectively, compared with previously published limits from CLEO.

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K. Abe. 2005-09-12. Search for Lepton Flavor Violating tau- Decays Including with a K0s Meson. https://arxiv.org/abs/hep-ex/0509014

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