%0 Journal Article
%T Evidence for the decay B-s(0) -> (K)over-bar(*0) mu(+)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 Vidal, J.
%A Sanchez Mayordomo, C.
%J Journal of High Energy Physics
%D 2018
%V 07
%N 7
%I Springer
%@ 1029-8479
%G English
%F LHCbCollaborationAaij_etal2018
%O WOS:000438135900001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3658), last updated on Fri, 27 Jul 2018 12:36:20 +0000
%X A search for the decay B-s(0) -> (K) over bar (*0) mu(+) mu(-) is presented using data sets corresponding to 1.0, 2.0 and 1.6 fb(-1) of integrated luminosity collected during pp collisions with the LHCb experiment at centre-of-mass energies of 7, 8 and 13TeV, respectively. An excess is found over the background-only hypothesis with a significance of 3.4 standard deviations. The branching fraction of the B-s(0) -> (K) over bar (*0) mu(+) mu(-) decay is determined to be B(B-s(0) -> (K) over bar (*0) mu(+) mu(-)) = [2.9 +/- 1.0 (stat) +/- 0.2 (syst) +/- 0.3 (norm)] x 10(-8), where the first and second uncertainties are statistical and systematic, respectively. The third uncertainty is due to limited knowledge of external parameters used to normalise the branching fraction measurement.
%K B physics
%K FCNC Interaction
%K Flavor physics
%K Hadron-Hadron scattering (experiments)
%K Rare decay
%R 10.1007/JHEP07(2018)020
%U http://arxiv.org/abs/1804.07167
%U https://doi.org/10.1007/JHEP07(2018)020
%P 020-24pp