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Article Dans Une Revue Physical Review D Année : 2012

A search for the decay modes B+/- to h+/- tau l

N. Arnaud

Résumé

We present a search for the lepton flavor violating decay modes B+/- to h+/- tau l (h= K,pi; l= e,mu) using the BaBar data sample, which corresponds to 472 million BBbar pairs. The search uses events where one B meson is fully reconstructed in one of several hadronic final states. Using the momenta of the reconstructed B, h, and l candidates, we are able to fully determine the tau four-momentum. The resulting tau candidate mass is our main discriminant against combinatorial background. We see no evidence for B+/- to h+/- tau l decays and set a 90% confidence level upper limit on each branching fraction at the level of a few times 10^-5.

Dates et versions

in2p3-00687971 , version 1 (16-04-2012)

Identifiants

Citer

J.P. Lees, V. Poireau, V. Tisserand, D. Bernard, M. Verderi, et al.. A search for the decay modes B+/- to h+/- tau l. Physical Review D, 2012, 86, pp.012004. ⟨10.1103/PhysRevD.86.012004⟩. ⟨in2p3-00687971⟩
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