Search for the decay modes B^{±}→h^{±}τl

We present a search for the lepton flavor violating decay modes B±→h±τl (h=K, π; l=e, μ) using the BABAR data sample, which corresponds to 472×106 BB⎯⎯⎯ 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 τ four-momentum. The resulting τ candidate mass is our main discriminant against combinatorial background. We see no evidence for B±→h±τl decays and set a 90% confidence level upper limit on each branching fraction at the level of a few times 10−5.