Search for lepton and baryon number violating decays into and

Authors :: Miyazaki, Y.
Abe, K.
Adachi, I.
Aihara, H.
Arinstein, K.
Asano, Y.
Aulchenko, V.
Aushev, T.
Bahinipati, S.
Bakich, A.M.
Balagura, V.
Barberio, E.
Bedny, I.
Bitenc, U.
Bizjak, I.
Blyth, S.
Bondar, A.
Bozek, A.
Bračko, M.
Brodzicka, J.
Source :: Physics Letters B. Jan2006, Vol. 632 Issue 1, p51-57. 7p.
Publication Year :: 2006
Abstract: Abstract: We have searched for τ lepton decays, and , that simultaneously violate the conservation of the lepton (L) and baryon (B) number using a data sample of collected with the Belle detector at the KEKB 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: and at the 90% confidence level. This is the first search ever performed for these modes. [Copyright &y& Elsevier]