Search for Lepton-flavor violation in the decay τ- → ℓ-+-

Published

Journal Article

A search for the lepton-flavor-violating (LFV) decay of the tau into three leptons was performed by using 91.5 fb-1 of data collected at an e+ e- center-of-mass energy around 10.58 GeV with the BABAR detector at the SLAC storage ring PEP-II. It was shown that the most stringent limit on FLV was B(τ → μγ) < 3.1 × 10 -7 at 90% C.L., in tau decays. The efficiency of the selection for signal events was estimated with a Monte Carlo (MC) simulation of LFV ray decays. The simulated tau-pairs events including higher-order radiative corrections were generated using KK2F with one tau decaying to three leptons with a three-body phase space distribution.

Full Text

Cited Authors

  • Aubert, B; Barate, R; Boutigny, D; Couderc, F; Gaillard, JM; Hicheur, A; Karyotakis, Y; Lees, JP; Tisserand, V; Zghiche, A; Palano, A; Pompili, A; Chen, JC; Qi, ND; Rong, G; Wang, P; Zhu, YS; Eigen, G; Ofte, I; Stugu, B; Abrams, GS; Borgland, A; Breon, AB; Brown, DN; Button-Shafer, J; Cahn, RN; Charles, E; Day, CT; Gill, MS; Gritsan, AV; Groysman, Y; Jacobsen, RG; Kadel, RW; Kadyk, J; Kerth, LT; Kolomensky, YG; Kukartsev, G; LeClerc, C; Levi, ME; Lynch, G; Mir, LM; Oddone, PJ; Orimoto, TJ; Pripstein, M; Roe, NA; Ronan, MT; Shelkov, VG; Telnov, AV; Wenzel, WA; Ford, K; Harrison, TJ; Hawkes, CM; Morgan, SE; Watson, AT; Watson, NK; Fritsch, M; Goetzen, K; Held, T; Koch, H; Lewandowski, B; Pelizaeus, M; Steinke, M; Boyd, JT; Chevalier, N; Cottingham, WN; Kelly, MP; Latham, TE; Wilson, FF; Abe, K; Cuhadar-Donszelmann, T; Hearty, C; Mattison, TS; McKenna, JA; Thiessen, D; Kyberd, P; Teodorescu, L; Blinov, VE; Bukin, AD; Druzhinin, VP; Golubev, VB; Ivanchenko, VN; Kravchenko, EA; Onuchin, AP; Serednyakov, SI; Skovpen, YI; Solodov, EP; Yushkov, AN; Best, D; Bruinsma, M; Chao, M; Eschrich, I; Kirkby, D; Lankford, AJ; Mandelkern, M; Mommsen, RK; Roethel, W; Stoker, DP; Buchanan, C; Hartfiel, BL; Gary, JW

Published Date

  • March 26, 2004

Published In

Volume / Issue

  • 92 / 12

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/PhysRevLett.92.121801

Citation Source

  • Scopus