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* / B., A., Y., K., J. P., L., V., P., E., P., X., P., V., T., J. G., T., E., G., M., M., A., P., M., P., G., E., B., S., L., S., M., B., D. N., B., L. T., K., Y. G., K., G., L., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 103:(2009), pp. 021801-021801. [10.1103/physrevlett.103.021801]

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

CAVOTO, Gianluca;FACCINI, Riccardo;FERRONI, Fernando;GASPERO, Mario;C. Voena;
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.
2009
01 Pubblicazione su rivista::01a Articolo in rivista
Improved Limits on Lepton-Flavor-Violating tau Decays to l phi, l rho, lK*, and l(K)over-bar* / B., A., Y., K., J. P., L., V., P., E., P., X., P., V., T., J. G., T., E., G., M., M., A., P., M., P., G., E., B., S., L., S., M., B., D. N., B., L. T., K., Y. G., K., G., L., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 103:(2009), pp. 021801-021801. [10.1103/physrevlett.103.021801]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/228260
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