Search for neutrinoless decays τ→ℓhh and τ→ℓV0
Physics Letters B2006Vol. 640(4), pp. 138–144
Citations Over TimeTop 10% of 2006 papers
Y. Yusa, K. Abe, K. Abe, I. Adachi, H. Aihara, Y. Asano, V. Aulchenko, A. Bay, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, T. E. Browder, A. Chen, B.G. Cheon, R. Chistov, Y. Choi, Y. Choi, A. Chuvikov, S. Cole, J. Dalseno, M. Dash, A. Drutskoy, S. Eidelman, S. Fratina, N. Gabyshev, T. Gershon, G. Gokhroo, A. Gorišek, H. C. Ha, J. Haba, K. Hayasaka, H. Hayashii, M. Hazumi, Y. Hoshi, W.-S. Hou, T. Iijima, K. Ikado, K. Inami, R. Itoh, M. Iwasaki, Y. Iwasaki, J.H. Kang, H. Kawai, T. Kawasaki, H. R. Khan, H. Kichimi, S. K. Kim, S. Korpar, P. Križan, R. Kulasiri, C.‐C. Jay Kuo, A. Kuzmin, Y.-J. Kwon, T. Lesiak, S.-W. Lin, D. Liventsev, G. Majumder, T. Matsumoto, W. Mitaroff, Y. Miyazaki, R. Mizuk, T. Nagamine, E. Nakano, Z. Natkaniec, S. Nishida, S. Ogawa, T. Ohshima, T. Okabe, S.L. Olsen, Y. Onuki, H. Ozaki, P. Pakhlov, H. Pałka, R. Pestotnik, L. E. Piilonen, Y. Sakai, N. Sato, T. Schietinger, O. Schneider, C. Schwanda, R. Seidl, K. Senyo, M. Shapkin, H. Shibuya, B. Shwartz, E. Solovieva, A. Somov, N. Soni, R. Stamen, S. Stanič, M. Starič, K. Sumisawa, O. Tajima, F. Takasaki, K. Tamai, M. Tanaka, G. N. Taylor, Y. Teramoto, X. C. Tian, T. Tsukamoto, S. Uehara, S. Uno, Y. Usov, G. Varner, S. Villa, E. Won, B. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, Z. Zhang
Abstract
We have searched for neutrinoless Ï lepton decays into âhh or â V0, where â stands for an electron or muon, h for a charged light hadron, Ï or K, and V0 for a neutral vector meson, Ï0, K* (892)0 and Ï{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) à 10-7 for various decay modes at the 90% confidence level. © 2006 Elsevier B.V. All rights reserved.
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