%0 Journal Article
%T Measurement of the branching fraction and CP asymmetry in B plus . J/.. plus decays
%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 European Physical Journal C
%D 2019
%V 79
%N 6
%I Springer
%@ 1434-6044
%G English
%F LHCbCollaborationAaij_etal2019
%O WOS:000472947700001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=4071), last updated on Fri, 12 Jul 2019 06:42:41 +0000
%X The branching fraction and direct CP asymmetry of the decay B +. J/.. + are measured using protonproton collision data collected with the LHCb detector at centre- of- mass energies of 7 and 8 TeV, corresponding to a total integrated luminosity of 3 fb – 1. The following results are obtained: ( B +. J/.. +) = ( 3.81 + 0.25 – 0.24 +/- 0.35) x 10 – 5, ACP ( B +. J/.. +) = – 0.045 + 0.056 – 0.057 +/- 0.008, where the first uncertainties are statistical and the second systematic. Both measurements are the most precise to date.
%R 10.1140/epjc/s10052-019-6698-3
%U https://arxiv.org/abs/1812.07041
%U https://doi.org/10.1140/epjc/s10052-019-6698-3
%P 537 - 13pp