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) x 10(6) tau decays collected by the BABAR detector near the Y(4S), Y(3S) and Y(2S) resonances. The searches yield no evidence of signals and we set upper limits on the branching fractions of B(tau(+/-) -> e(+/-)gamma) < 3.3 X 10(-8) and B(tau(+/-) -> mu(+/-)gamma) < 4.4 X 10(-8) at 90% confidence level.

Searches for Lepton Flavor Violation in the Decays tau(+/-) -> e(+/-)gamma and tau(+/-) -> mu(+/-)gamma

Liu F;Sharma V;Fang F;Mishra K;Gaz A;Nagel M;Andreotti M;Finocchiaro G;Tosi S;Stracka S;Frey R;Marchiori G;Batignani G;Lusiani A;Morganti M;Olsen J;Cavoto G;Ferroni F;Mazzoni MA;Cenci R;Suzuki K;Bosisio L;Banerjee S;
2010

Abstract

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) x 10(6) tau decays collected by the BABAR detector near the Y(4S), Y(3S) and Y(2S) resonances. The searches yield no evidence of signals and we set upper limits on the branching fractions of B(tau(+/-) -> e(+/-)gamma) < 3.3 X 10(-8) and B(tau(+/-) -> mu(+/-)gamma) < 4.4 X 10(-8) at 90% confidence level.
2010
Settore FIS/01 - Fisica Sperimentale
tau LFV
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11384/1760
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