%0 Journal Article
%T Measurement of CP asymmetries in the decays B-0 -> K-*0 mu(+) mu(-) and B+ -> K+ mu(+) mu(-)
%A LHCb Collaboration (Aaij, R. et al
%A Martinez-Vidal, F.
%A Oyanguren, A.
%A Ruiz Valls, P.
%A Sanchez Mayordomo, C.
%J Journal of High Energy Physics
%D 2014
%V 09
%N 9
%I Springer
%@ 1029-8479
%G English
%F LHCbCollaborationAaij_etal2014
%O WOS:000343156800002
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2088), last updated on Thu, 12 Feb 2015 11:23:50 +0000
%X The direct CP asymmetries of the decays B-0 -> K-*0 mu(+) mu(-) and B+ -> K+ mu(+) mu(-) are measured using pp collision data corresponding to an integrated luminosity of 3.0 fb(-1) collected with the LHCb detector. The respective control modes B-0 -> J/psi K+ and B+ -> J/psi K+ are used to account for detection and production asymmetries. The measurements are made in several intervals of mu(+)mu(-) invariant mass squared, with the phi(1020) and charmonium resonance regions excluded. Under the hypothesis of zero CP asymmetry in the control modes, the average values of the asymmetries are A(CP)(B-0 -> K-*0 mu(+) mu(-) and B+ -> K+ mu(+) mu(-)) = -0.035 +/- 0.024 +/- 0.003, A(CP)(B+ -> K+ mu(+) mu(-) = 0.012 +/- 0.017 +/- 0.001, where the first uncertainties are statistical and the second are due to systematic effects. Both measurements are consistent with the Standard Model prediction of small CP asymmetry in these decays.
%K Rare decay
%K CP violation
%K Hadron-Hadron Scattering
%K B physics
%K Flavour Changing Neutral Currents
%R 10.1007/JHEP09(2014)177
%U http://arxiv.org/abs/1408.0978
%U https://doi.org/10.1007/JHEP09(2014)177
%P 177-18pp