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Open Access item Search for Lepton Flavor Violating Decays tau(-) -> l(-)K(s)(0) with the BABAR Experiment

Authors:Babar Collaboration
Azzolini, Virginia
López-March, Neus
Martínez-Vidal, Fernando
Milanés, Diego A.
Oyanguren, Arantza
Aubert, B.
Issue Date:27-Jan-2009
Publisher:American Physical Society
Citation:Physical Review - Section D - Particles and Fields 79 (1): 012004 (2009)
Abstract:A search for the lepton flavor violating decays tau(-) --> l(-)K(S)(0) (l = e or mu) has been performed using a data sample corresponding to an integrated luminosity of 469 fb(-1), collected with the BABAR detector at the SLAC PEP-II e(+) e(-) asymmetric energy collider. No statistically significant signal has been observed in either channel and the estimated upper limits on branching fractions are B(tau(-) --> e(-)K(S)(0)) < 3.3 x 10(-8) and B(tau(-) --> mu K--(S)0) < 4.0 x 10(-8) at 90% confidence level.
Publisher version (URL):http://dx.doi.org/ 10.1103/PhysRevD.79.012004
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