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

(LHCb Collaboration)

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

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.

Original languageEnglish (US)
Article number241802
JournalPhysical Review Letters
Volume123
Issue number24
DOIs
StatePublished - Dec 12 2019

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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