%0 Journal Article
%T First observation of the decay D-0 -> K-pi(+)mu(+)mu(-) in the rho(0)-omega region of the dimuon mass spectrum
%A LHCb Collaboration (Aaij, R. et al
%A Martinez-Vidal, F.
%A Oyanguren, A.
%A Ruiz Valls, P.
%A Sanchez Mayordomo, C.
%J Physics Letters B
%D 2016
%V 757
%I Elsevier Science Bv
%@ 0370-2693
%G English
%F LHCbCollaborationAaij_etal2016
%O WOS:000376800300078
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2700), last updated on Thu, 23 Jun 2016 18:47:58 +0000
%X A study of the decay D-0 -> K-pi(+)mu(+)mu(-) is performed using data collected by the LHCb detector in proton-proton collisions at a centre-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 2.0 fb(-1). Decay candidates with muon pairs that have an invariant mass in the range 675-875 MeV/c(2) are considered. This region is dominated by the rho(0) and omega resonances. The branching fraction in this range is measured to be B(D-0 -> K-pi(+)mu(+)mu(-)) = (4.17 +/- 0.12 (stat) +/- 0.40 (syst)) x 10(-6). This is the first observation of the decay D-0 -> K-pi(+)mu(+)mu(-). Its branching fraction is consistent with the value expected in the Standard Model.
%R 10.1016/j.physletb.2016.04.029
%U http://arxiv.org/abs/1510.08367
%U https://doi.org/10.1016/j.physletb.2016.04.029
%P 558-567