Search for Lepton-Flavor Violating Decays B+ →k+μ±eâ"

(LHCb Collaboration)

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Resum

A search for the lepton-flavor violating decays B+→K+μ±eâ" is performed using a sample of proton-proton collision data, collected with the LHCb experiment at center-of-mass energies of 7 and 8 TeV and corresponding to an integrated luminosity of 3 fb-1. No significant signal is observed, and upper limits on the branching fractions are set as B(B+→K+μ-e+)<7.0(9.5)×10-9 and B(B+→K+μ+e-)<6.4(8.8)×10-9 at 90% (95)% confidence level. The results improve the current best limits on these decays by more than one order of magnitude.

Idioma originalAnglès
Número d’article241802
RevistaPhysical Review Letters
Volum123
Número24
DOIs
Estat de la publicacióPublicada - 12 de des. 2019
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