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

Abstract : 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.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00687971
Contributor : Sabine Starita <>
Submitted on : Monday, April 16, 2012 - 11:13:07 AM
Last modification on : Friday, November 6, 2020 - 3:31:10 AM

### Citation

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, American Physical Society, 2012, 86, pp.012004. ⟨10.1103/PhysRevD.86.012004⟩. ⟨in2p3-00687971⟩

Record views