We search for the neutrinoless, lepton-flavor-violating tau decays tau(-)-> l(-) V(0), where l is an electron or muon and V(0) is a vector meson reconstructed as phi -> K(+) K(-), rho -> pi(+) pi(-), K* -> K(+) pi(-), (K) over bar*-> K(-) pi(+). The analysis has been performed using 451 fb(-1) of data collected at an e(+) e(-) center-of-mass energy near 10.58 GeV with the BABAR detector at the PEP-II storage rings. The number of events found in the data is compatible with the background expectation, and upper limits on the branching fractions are set in the range (2.6-19) x 10(-8) at the 90% confidence level.

Improved Limits on Lepton-Flavor-Violating tau Decays to l phi, l rho, lK*, and l(K)over-bar*

Baracchini E;Ferroni F;
2009

Abstract

We search for the neutrinoless, lepton-flavor-violating tau decays tau(-)-> l(-) V(0), where l is an electron or muon and V(0) is a vector meson reconstructed as phi -> K(+) K(-), rho -> pi(+) pi(-), K* -> K(+) pi(-), (K) over bar*-> K(-) pi(+). The analysis has been performed using 451 fb(-1) of data collected at an e(+) e(-) center-of-mass energy near 10.58 GeV with the BABAR detector at the PEP-II storage rings. The number of events found in the data is compatible with the background expectation, and upper limits on the branching fractions are set in the range (2.6-19) x 10(-8) at the 90% confidence level.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.12571/3080
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