A Search For The Decay Modes B To H Tau L
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A Search for the Decay Modes B +/- to H +/- Tau L
Author | : |
Publisher | : |
Total Pages | : 16 |
Release | : 2012 |
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ISBN | : |
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We present a search for the lepton flavor violating decay modes B{sup ±} → h{sup ±} [tau]l (h = K, [pi]; l = e, [mu]) using the BABAR data sample, which corresponds to 472 million B{bar B} 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{sup ±} → h{sup ±} [tau]l decays and set a 90% confidence level upper limit on each branching fraction at the level of a few times 10−5.
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