%0 Journal Article
%T Measurement of indirect CP asymmetries in D-0 -> K-K+ and D-0 -> pi(-)pi(+) decays using semileptonic B decays
%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 2015
%V 04
%N 4
%I Springer
%@ 1029-8479
%G English
%F LHCbCollaborationAaij_etal2015
%O WOS:000353555500001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2197), last updated on Fri, 15 May 2015 15:46:39 +0000
%X Time-dependent CP asymmetries in the decay rates of the singly Cabibbo-suppressed decays D-0 -> K-K+ and D-0 -> pi (-) pi(+) are measured in pp collision data corresponding to an integrated luminosity of 3.0 fb(-1) collected by the LHCb experiment. The D-0 mesons are produced in semileptonic b-hadron decays, where the charge of the accompanying muon is used to determine the initial state as D-0 or (D) over bar (0). The asymmetries in effective lifetimes between D-0 and (D) over bar (0) decays, which are sensitive to indirect CP violation, are determined to be A(Gamma) (K-K+) = (-0.134 +/- 0.077(-0.034)(+0.026))%, A(Gamma) (pi(-)pi(+)) = -0.092 +/- 0.145(-0.033)(+0.025))%, where the first uncertainties are statistical and the second systematic. This result is in agreement with previous measurements and with the hypothesis of no indirect CP violation in D (0) decays.
%K CP violation
%K Charm physics
%K Lifetime
%K Hadron-Hadron Scattering
%R 10.1007/JHEP04(2015)043
%U http://arxiv.org/abs/1501.06777
%U https://doi.org/10.1007/JHEP04(2015)043
%P 043-19pp