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Search for the reactions e+e-→μ+τ- and e+e-→e+τ-

  • Author(s): Aubert, B;
  • Bona, M;
  • Boutigny, D;
  • Couderc, F;
  • Karyotakis, Y;
  • Lees, JP;
  • Poireau, V;
  • Tisserand, V;
  • Zghiche, A;
  • Grauges, E;
  • Palano, A;
  • Chen, JC;
  • Qi, ND;
  • Rong, G;
  • Wang, P;
  • Zhu, YS;
  • Eigen, G;
  • Ofte, I;
  • Stugu, B;
  • Abrams, GS;
  • Battaglia, M;
  • Brown, DN;
  • Button-Shafer, J;
  • Cahn, RN;
  • Charles, E;
  • Gill, MS;
  • Groysman, Y;
  • Jacobsen, RG;
  • Kadyk, JA;
  • Kerth, LT;
  • Kolomensky, YG;
  • Kukartsev, G;
  • Lynch, G;
  • Mir, LM;
  • Orimoto, TJ;
  • Pripstein, M;
  • Roe, NA;
  • Ronan, MT;
  • Wenzel, WA;
  • Del Amo Sanchez, P;
  • Barrett, M;
  • Ford, KE;
  • Hart, AJ;
  • Harrison, TJ;
  • Hawkes, CM;
  • Watson, AT;
  • Held, T;
  • Koch, H;
  • Lewandowski, B;
  • Pelizaeus, M;
  • Peters, K;
  • Schroeder, T;
  • Steinke, M;
  • Boyd, JT;
  • Burke, JP;
  • Cottingham, WN;
  • Walker, D;
  • Asgeirsson, DJ;
  • Cuhadar-Donszelmann, T;
  • Fulsom, BG;
  • Hearty, C;
  • Knecht, NS;
  • Mattison, TS;
  • McKenna, JA;
  • Khan, A;
  • Kyberd, P;
  • Saleem, M;
  • Sherwood, DJ;
  • Teodorescu, L;
  • Blinov, VE;
  • Bukin, AD;
  • Druzhinin, VP;
  • Golubev, VB;
  • Onuchin, AP;
  • Serednyakov, SI;
  • Skovpen, YI;
  • Solodov, EP;
  • Todyshev, KY;
  • Bondioli, M;
  • Bruinsma, M;
  • Chao, M;
  • Curry, S;
  • Eschrich, I;
  • Kirkby, D;
  • Lankford, AJ;
  • Lund, P;
  • Mandelkern, M;
  • Mommsen, RK;
  • Roethel, W;
  • Stoker, DP;
  • Abachi, S;
  • Buchanan, C;
  • Foulkes, SD;
  • Gary, JW;
  • Long, O;
  • Shen, BC;
  • Wang, K;
  • Zhang, L;
  • Hadavand, HK;
  • Hill, EJ
  • et al.

Published Web Location

https://doi.org/10.1103/PhysRevD.75.031103Creative Commons 'BY' version 4.0 license
Abstract

We report on a search for the lepton-flavor-violating processes e+e-→μ+τ- and e+e-→e+τ-. The data sample corresponds to an integrated luminosity of 211fb-1 recorded by the BABAR experiment at the SLAC PEP-II asymmetric-energy B Factory at a center-of-mass energy of s=10.58GeV. We find no evidence for a signal and set the 90% confidence level upper limits on the cross sections to be σμτ<3.8fb and σeτ<9.2fb. The ratio of the cross sections with respect to the dimuon cross section are measured to be σμτ/σμμ<3.4×10-6 and σeτ/σμμ<8.2×10-6. © 2007 The American Physical Society.

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