%0 Journal Article
%T Search for the lepton-flavour violating decays B-(s)(0) -> e(+/-) mu(-/+)
%A LHCb Collaboration (Aaij, R. et al
%A Garcia Martin, L. M.
%A Henry, L.
%A Martinez-Vidal, F.
%A Oyanguren, A.
%A Remon Alepuz, C.
%A Ruiz Valls, P.
%A Ruiz Vidal, J.
%A Sanchez Mayordomo, C.
%J Journal of High Energy Physics
%D 2018
%V 03
%N 3
%I Springer
%@ 1029-8479
%G English
%F LHCbCollaborationAaij_etal2018
%O WOS:000428791300007
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3549), last updated on Fri, 13 Apr 2018 14:27:12 +0000
%X A search for the lepton-flavour violating decays B-(s)(0) -> e(+/-)mu(-/+) and B-(s)(0) -> e(+/-)mu(-/+) performed based on a sample of proton-proton collision data corresponding to an integrated luminosity of 3 fb(-1), collected with the LHCb experiment at centre-of-mass energies of 7 and 8TeV. The observed yields are consistent with the background-only hypothesis. Upper limits on the branching fraction of the B-(s)(0) -> e(+/-)mu(-/+) decays are evaluated both in the hypotheses of an amplitude completely dominated by the heavy eigenstate and by the light eigenstate. The results are B(B-s(0) -> e(+/-)mu(-/+)) < 6.3 (5.4) x 10(-9) and B(B-s(0) -> e(+/-)mu(-/+)) < 7.2(6.0) x 10(-9) at 95% (90%) confidence level, respectively. The upper limit on the branching fraction of the B-0 -> e(+/-)mu(-/+) decay is also evaluated, obtaining B(B-0 -> e(+/-)mu(-/+)) < 1.3 (1.0) x 10(-9) at 95% (90%) confidence level. These are the strongest limits on these decays to date.
%K B physics
%K Branching fraction
%K Flavor physics
%K Hadron-Hadron scattering (experiments)
%K Rare decay
%R 10.1007/JHEP03(2018)078
%U http://arxiv.org/abs/1710.04111
%U https://doi.org/10.1007/JHEP03(2018)078
%P 078-20pp