%0 Journal Article %T Search for Lepton-Flavor Violating Decays B+ -> K+ mu(+/-) e(-/+) %A LHCb Collaboration (Aaij, R. et al %A Garcia Martin, L. M. %A Henry, L. %A Jashal, B. K. %A Martinez-Vidal, F. %A Oyanguren, A. %A Remon Alepuz, C. %A Ruiz Vidal, J. %A Sanchez Mayordomo, C. %J Physical Review Letters %D 2019 %V 123 %N 24 %I Amer Physical Soc %@ 0031-9007 %G English %F LHCbCollaborationAaij_etal2019 %O WOS:000502271300004 %O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=4235), last updated on Wed, 08 Jan 2020 07:48:47 +0000 %X A search for the lepton-flavor violating decays B+ -> K+ mu(+/-)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+ mu(+/-)e(+)) < 7.0(95) x 10(-9) and B(B+ -> K+ mu(+/- )e(-)) < 6.4(8.8) x 10(-9) at 90% (95)% confidence level. The results improve the current best limits on these decays by more than one order of magnitude. %R 10.1103/PhysRevLett.123.241802 %U https://arxiv.org/abs/1909.01010 %U https://doi.org/10.1103/PhysRevLett.123.241802 %P 241802 - 11pp