E-viri
PDF
Recenzirano
-
Aubert, B.; Karyotakis, Y.; Lees, J. P.; Poireau, V.; Prencipe, E.; Prudent, X.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Martinelli, M.; Palano, A.; Pappagallo, M.; Dipartimento di Fisica, Universita di Bari, I-70126 Bari; Eigen, G.; Stugu, B.; Sun, L.; Battaglia, M.; Brown, D. N.; Hooberman, B.; Kerth, L. T.; Kolomensky, Yu. G.
Physical review letters, 01/2010, Letnik: 104, Številka: 2Journal Article
Searches for lepton-flavor-violating decays of a {tau} lepton to a lighter mass lepton and a photon have been performed with the entire data set of (963+-7)x10{sup 6} {tau} decays collected by the BABAR detector near the {Upsilon}(4S), {Upsilon}(3S) and {Upsilon}(2S) resonances. The searches yield no evidence of signals and we set upper limits on the branching fractions of B(tau{sup +}-->e{sup +}-{gamma})<3.3x10{sup -8} and B({tau}{sup +}-->{mu}{sup +}-{gamma})<4.4x10{sup -8} at 90% confidence level.
