A search for the lepton-flavor violating decays B^+→K^+μ^±e^∓ 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.
Search for Lepton-Flavor Violating Decays B^+→K^+μ^±e^∓
Veltri, M;
2019
Abstract
A search for the lepton-flavor violating decays B^+→K^+μ^±e^∓ 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.File in questo prodotto:
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