We search for the neutrinoless, lepton-flavor-violating tau decays τ-→-V0, where is an electron or muon and V0 is a vector meson reconstructed as →K+K-, ρ→π+π-, K*→K+π-, K̄*→K-π+. The analysis has been performed using 451fb-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)×10-8 at the 90% confidence level.

Aubert, B., Karyotakis, Y., Lees, J., Poireau, V., Prencipe, E., Prudent, X., et al. (2009). Improved limits on lepton-flavor-violating τ decays to ℓ, ρ, K*, and K̄*. PHYSICAL REVIEW LETTERS, 103(2) [10.1103/PhysRevLett.103.021801].

Improved limits on lepton-flavor-violating τ decays to ℓ, ρ, K*, and K̄*

Martinelli M;CARPINELLI, Massimo;
2009

Abstract

We search for the neutrinoless, lepton-flavor-violating tau decays τ-→-V0, where is an electron or muon and V0 is a vector meson reconstructed as →K+K-, ρ→π+π-, K*→K+π-, K̄*→K-π+. The analysis has been performed using 451fb-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)×10-8 at the 90% confidence level.
Articolo in rivista - Articolo scientifico
BABAR detector
English
2009
103
2
021801
none
Aubert, B., Karyotakis, Y., Lees, J., Poireau, V., Prencipe, E., Prudent, X., et al. (2009). Improved limits on lepton-flavor-violating τ decays to ℓ, ρ, K*, and K̄*. PHYSICAL REVIEW LETTERS, 103(2) [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/10281/389490
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