Search for lepton-flavor-violating τ decays into a lepton and a vector meson

Y. Miyazaki, H. Aihara, K. Arinstein, V. Aulchenko, A. M. Bakich, V. Balagura, E. Barberio, A. Bay, K. Belous, V. Bhardwaj, M. Bischofberger, A. Bondar, A. Bozek, M. Bračko, T. E. Browder, A. Chen, P. Chen, B. G. Cheon, C. C. Chiang, I. S. ChoK. Cho, K. S. Choi, Y. Choi, J. Dalseno, M. Danilov, Z. Doležal, A. Drutskoy, S. Eidelman, D. Epifanov, N. Gabyshev, A. Garmash, B. Golob, H. Ha, J. Haba, K. Hara, K. Hayasaka, H. Hayashii, Y. Horii, Y. Hoshi, W. S. Hou, Y. B. Hsiung, H. J. Hyun, T. Iijima, K. Inami, R. Itoh, M. Iwabuchi, N. J. Joshi, T. Julius, D. H. Kah, J. H. Kang, H. Kawai, T. Kawasaki, C. Kiesling, H. J. Kim, H. O. Kim, M. J. Kim, Y. J. Kim, K. Kinoshita, B. R. Ko, P. Križan, T. Kumita, A. Kuzmin, Y. J. Kwon, S. H. Kyeong, J. S. Lange, M. J. Lee, S. H. Lee, Y. Li, C. Liu, Y. Liu, D. Liventsev, R. Louvot, S. McOnie, K. Miyabayashi, H. Miyata, R. Mizuk, G. B. Mohanty, A. Moll, T. Mori, Y. Nagasaka, E. Nakano, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, G. Pakhlova, C. W. Park, H. Park, H. K. Park, R. Pestotnik, M. Petrič, L. E. Piilonen, A. Poluektov, M. Röhrken, S. Ryu, H. Sahoo, K. Sakai, Y. Sakai, O. Schneider, C. Schwanda, K. Senyo, M. E. Sevior, M. Shapkin, V. Shebalin, C. P. Shen, J. G. Shiu, B. Shwartz, F. Simon, P. Smerkol, Y. S. Sohn, A. Sokolov, S. Stanič, M. Starič, T. Sumiyoshi, Y. Teramoto, K. Trabelsi, S. Uehara, T. Uglov, Y. Unno, S. Uno, Y. Usov, S. E. Vahsen, G. Varner, A. Vinokurova, A. Vossen, C. H. Wang, P. Wang, M. Watanabe, Y. Watanabe, K. M. Williams, E. Won, H. Yamamoto, Y. Yamashita, Z. P. Zhang, V. Zhilich, V. Zhulanov, T. Zivko, A. Zupanc, O. Zyukova

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53 Scopus citations

Abstract

We search for lepton-flavor-violating τ→ℓV0 decays, where ℓ is an electron or muon and V0 is one of the vector mesons ρ0, φ, ω, K*0 and K*0. We use 854 fb-1 of data collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. No evidence for a signal is found in any decay mode, and we obtain 90% confidence level upper limits on the individual branching fractions in the range (1.2-8.4)×10-8.

Original languageEnglish
Pages (from-to)251-257
Number of pages7
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume699
Issue number4
DOIs
StatePublished - 16 May 2011

Keywords

  • B-factory
  • Lepton flavor violation
  • Tau

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