Search For Lepton-Flavor-Violating Tau 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. Bracko,T. E. Browder,A. Chen,P. Chen,B. G. Cheon,C. -C. Chiang,I. -S. Cho,K. Cho,K. -S. Choi,Y. Choi,J. Dalseno,M. Danilov,Z. Dolezal,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. Krizan,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. Petric,L. E. Piilonen,A. Poluektov,M. Roehrken,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. Stanic,M. Staric,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

PHYSICS LETTERS B（2011）

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Abstract

We search for lepton-flavor-violating tau -> lV(0) decays, where l is an electron or muon and V(0) is one of the vector mesons rho(0), phi, omega, K*(0) and (K) over bar*(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) x 10(-8). (C) 2011 Elsevier B.V. All rights reserved.

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Key words

Tau,Lepton flavor violation,B-factory

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