TY  - JOUR
AU  - LHCb Collaboration (Aaij, R. et al
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
AU  - Ruiz Valls, P.
AU  - Sanchez Mayordomo, C.
PY  - 2015
DA  - 2015//
TI  - Measurement of indirect CP asymmetries in D-0 -> K-K+ and D-0 -> pi(-)pi(+) decays using semileptonic B decays
T2  - J. High Energy Phys.
JO  - Journal of High Energy Physics
SP  - 043
EP  - 19pp
VL  - 04
IS  - 4
PB  - Springer
KW  - CP violation
KW  - Charm physics
KW  - Lifetime
KW  - Hadron-Hadron Scattering
AB  - 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.
SN  - 1029-8479
UR  - http://arxiv.org/abs/1501.06777
UR  - https://doi.org/10.1007/JHEP04(2015)043
DO  - 10.1007/JHEP04(2015)043
LA  - English
N1  - WOS:000353555500001
ID  - LHCbCollaborationAaij_etal2015
ER  -