Accession Number DE2012-1046370
Title Search for the Decay Modes B(+ or -) to h (+ or -)(pi)l.
Publication Date 2011
Media Count 16p
Personal Author J. P. Lees V. Poireau V. Tisserand
Abstract We present a search for the lepton flavor violating decay modes B(sup (+-)) (yields) h(sup (+-)) (tau)(ell) (h = K, (pi); (ell) = 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 (ell) 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 (+-)) (yields) h(sup (+-)) (tau)(ell) decays and set a 90% confidence level upper limit on each branching fraction at the level of a few times 10(sup -5).
Keywords B mesons
Branching ratio
Decay
Hadrons
Leptons


 
Source Agency Technical Information Center Oak Ridge Tennessee
NTIS Subject Category 46 - Physics
Corporate Author Stanford Linear Accelerator Center, CA.
Document Type Technical report
Title Note N/A
NTIS Issue Number 1303
Contract Number DE-AC02-76SF00515

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