Search for neutrinoless decays τ → ℓ h h and τ → ℓ V0
- Yusa, Y.
- Abe, K.
- Abe, K.
- Adachi, I.
- Aihara, H.
- Asano, Y.
- Aulchenko, V.
- Bay, A.
- Bitenc, U.
- Bizjak, I.
- Blyth, S.
- Bondar, A.
- Browder, T.E.
- Chen, A.
- Cheon, B.G.
- Chistov, R.
- Choi, Y.
- Choi, Y.K.
- Chuvikov, A.
- Cole, S.
- Dalseno, J.
- Dash, M.
- Drutskoy, A.
- Eidelman, S.
- Fratina, S.
- Gabyshev, N.
- Gershon, T.
- Gokhroo, G.
- Gorišek, A.
- Ha, H.C.
- Haba, J.
- Hayasaka, K.
- Hayashii, H.
- Hazumi, M.
- Hoshi, Y.
- Hou, W.-S.
- Iijima, T.
- Ikado, K.
- Inami, K.
- Itoh, R.
- Iwasaki, M.
- Iwasaki, Y.
- Kang, J.H.
- Kawai, H.
- Kawasaki, T.
- Khan, H.R.
- Kichimi, H.
- Kim, S.K.
- Korpar, S.
- Križan, P.
- Kulasiri, R.
- Kuo, C.C.
- Kuzmin, A.
- Kwon, Y.-J.
- Lesiak, T.
- Lin, S.-W.
- Liventsev, D.
- Majumder, G.
- Matsumoto, T.
- Mitaroff, W.
- Miyazaki, Y.
- Mizuk, R.
- Nagamine, T.
- Nakano, E.
- Natkaniec, Z.
- Nishida, S.
- Ogawa, S.
- Ohshima, T.
- Okabe, T.
- Olsen, S.L.
- Onuki, Y.
- Ozaki, H.
- Pakhlov, P.
- Palka, H.
- Pestotnik, R.
- Piilonen, L.E.
- Sakai, Y.
- Sato, N.
- Schietinger, T.
- Schneider, O.
- Schwanda, C.
- Seidl, R.
- Senyo, K.
- Shapkin, M.
- Shibuya, H.
- Shwartz, B.
- Sokolov, A.
- Somov, A.
- Soni, N.
- Stamen, R.
- Stanič, S.
- Starič, M.
- Sumisawa, K.
- Tajima, O.
- Takasaki, F.
- Tamai, K.
- Tanaka, M.
- Taylor, G.N.
- Teramoto, Y.
- Tian, X.C.
- Tsukamoto, T.
- Uehara, S.
- Uno, S.
- Usov, Y.
- Varner, G.
- Villa, S.
- Won, E.
- Yabsley, B.D.
- Yamaguchi, A.
- Yamashita, Y.
- Yamauchi, M.
- Zhang, Z.P.
DOIAbstract
We have searched for neutrinoless τ lepton decays into ℓhh or ℓ V0, where ℓ stands for an electron or muon, h for a charged light hadron, π or K, and V0 for a neutral vector meson, ρ0, K* (892)0 and φ{symbol}, using a 158 fb-1 data sample collected with the Belle detector at the KEKB e+ e- collider. Since the number of events observed are consistent with the expected background, we set upper limits on the branching fractions in the range of (1.6 - 8.0) × 10-7 for various decay modes at the 90% confidence level. © 2006 Elsevier B.V. All rights reserved
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