Search for the decay modes B[superscript ±]→h[superscript ±]τℓ
Name
Lees-2012-Search for the decay.pdf
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472.5 KB
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Adobe PDF
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Author(s)
Dujmic, Denis
Sciolla, Gabriella
Cowan, Ray F
Date Issued
July 2012
Journal
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
Abstract
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].
MIT Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.86.012004
