Search for the decay modes B[superscript ±]→h[superscript ±]τℓ
Author(s)
Dujmic, Denis; Sciolla, Gabriella; Cowan, Ray F
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We present a search for the lepton flavor violating decay modes B[superscript ±]→h[superscript ±]τℓ (h=K, π; ℓ=e, μ) using the BABAR data sample, which corresponds to 472×10[superscript 6] B[bar over 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 τ four-momentum. The resulting τ candidate mass is our main discriminant against combinatorial background. We see no evidence for B[superscript ±]→h[superscript ±]τℓ decays and set a 90% confidence level upper limit on each branching fraction at the level of a few times 10[superscript -5].
Date issued
2012-07Department
Massachusetts Institute of Technology. Laboratory for Nuclear ScienceJournal
Physical Review D
Publisher
American Physical Society
Citation
Lees, J. et al. “Search for the Decay Modes Search for the decay modes B[superscript ±]→h[superscript ±]τℓ.” Physical Review D 86.1 (2012). © 2012 American Physical Society
Version: Final published version
ISSN
1550-7998
1089-4918