Search for lepton flavor violating decays into , and

Authors :: Miyazaki, Y.
Adachi, I.
Aihara, H.
Anipko, D.
Arinstein, K.
Aulchenko, V.
Aziz, T.
Bakich, A.M.
Barberio, E.
Bay, A.
Bedny, I.
Belous, K.
Bitenc, U.
Bizjak, I.
Bondar, A.
Bračko, M.
Browder, T.E.
Chen, A.
Chen, W.T.
Cheon, B.G.
Source :: Physics Letters B. May2007, Vol. 648 Issue 5/6, p341-350. 10p.
Publication Year :: 2007
Abstract: Abstract: We have searched for lepton-flavor-violating τ decays with a pseudoscalar meson (η, and ) using a data sample of 401 fb−1 collected with the Belle detector at the KEKB asymmetric-energy collider. No evidence for these decays is found and we set the following upper limits on the branching fractions: , , , , and at the 90% confidence level. These results improve our previously published upper limits by factors from 2.3 to 6.3. [Copyright &y& Elsevier]