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.Choi, Y.Choi, Y.K.Dalseno, J.Eidelman, S.Epifanov, D.Fratina, S.Gabyshev, N.Go, A.Gorišek, A.Ha, H.Haba, J.Hayasaka, K.Hayashii, H.Hazumi, M.Heffernan, D.Hokuue, T.Hoshi, Y.Hou, S.Hou, W.-S.Iijima, T.Imoto, A.Inami, K.Ishikawa, A.Itoh, R.Iwasaki, M.Iwasaki, Y.Kaji, H.Kapusta, P.Kawai, H.Kawasaki, T.Kichimi, H.Kim, Y.J.Korpar, S.Križan, P.Krokovny, P.Kulasiri, R.Kumar, R.Kuo, C.C.Kuzmin, A.Kwon, Y.-J.Lee, M.J.Lesiak, T.Lin, S.-W.Mandl, F.Matsumoto, T.Miyake, H.Miyata, H.Nagamine, T.Nagasaka, Y.Nakao, M.Nishida, S.Nitoh, O.Ogawa, S.Ohshima, T.Okuno, S.Onuki, Y.Ozaki, H.Pakhlov, P.Pakhlova, G.Park, H.Peak, L.S.Pestotnik, R.Piilonen, L.E.Poluektov, A.Sahoo, H.Sakai, Y.Satoyama, N.Schietinger, T.Schneider, O.Schümann, J.Schwanda, C.Schwartz, A.J.Senyo, K.Sevior, M.E.Shibuya, H.Shwartz, B.Sidorov, V.Singh, J.B.Somov, A.Soni, N.Stanič, S.Starič, M.Stoeck, H.Sumiyoshi, T.Takasaki, F.Tamai, K.Tanaka, M.Taylor, G.N.Teramoto, Y.Tian, X.C.Tikhomirov, I.Tsukamoto, T.Uehara, S.Ueno, K.Unno, Y.Uno, S.Urquijo, P.Usov, Y.Varner, G.Villa, S.Vinokurova, A.Wang, C.H.Watanabe, M.Watanabe, Y.Won, E.Yamaguchi, A.Yamashita, Y.Yamauchi, M.Zhang, Z.P.Zhilich, V.Zhulanov, V.Zupanc, A.2010-11-052010-11-052010-11-05200710.1016/j.physletb.2007.03.0272-s2.0-34247338959https://infoscience.epfl.ch/handle/20.500.14299/56894WOS:000246865500003We have searched for lepton-flavor-violating τ decays with a pseudoscalar meson (η, η′ and π0) using a data sample of 401 fb-1 collected with the Belle detector at the KEKB asymmetric-energy e+ e- collider. No evidence for these decays is found and we set the following upper limits on the branching fractions: B (τ- → e- η) < 9.2 × 10-8, B (τ- → μ- η) < 6.5 × 10-8, B (τ- → e- η′) < 1.6 × 10-7, B (τ- → μ- η′) < 1.3 × 10-7, B (τ- → e- π0) < 8.0 × 10-8 and B (τ- → μ- π0) < 1.2 × 10-7 at the 90% confidence level. These results improve our previously published upper limits by factors from 2.3 to 6.3. © 2007 Elsevier B.V. All rights reserved.text::journal::journal article::research article