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Title: Searches for lepton flavor violation in the decays tau+- --> e+- gamma and tau+- --> mu+- gamma
Author: Garra Ticó, Jordi
Graugés Pous, Eugeni
BABAR Collaboration
Keywords: Leptons (Física nuclear)
Leptons (Nuclear physics)
Issue Date: 2010
Publisher: American Physical Society
Abstract: Searches for lepton flavor violating decay of a tau lepton to a lighter mass lepton and a photon have been performed with the full dataset of (963 +- 7) x 10^6 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 BR(tau -> e gamma) < 3.3 x 10^-8 and BR(tau -> mu gamma) < 4.4 x 10^-8 at 90% confidence level.
Note: Reproducció del document publicat a:
It is part of: Physical Review Letters, 2010, vol. 104, p. 021802
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ISSN: 0031-9007
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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