Search for the decay modes B±→h±τℓ
Abstract
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.
- Publication:
-
Physical Review D
- Pub Date:
- July 2012
- DOI:
- 10.1103/PhysRevD.86.012004
- arXiv:
- arXiv:1204.2852
- Bibcode:
- 2012PhRvD..86a2004L
- Keywords:
-
- 13.25.Hw;
- 14.40.Nd;
- Decays of bottom mesons;
- Bottom mesons;
- High Energy Physics - Experiment
- E-Print:
- 15 pages, 7 figures, submitted to Phys. Rev. D