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 the time-dependent CP asymmetries in B-s(0) -> J/psi K-S(0)
T2  - J. High Energy Phys.
JO  - Journal of High Energy Physics
SP  - 131
EP  - 22pp
VL  - 06
IS  - 6
PB  - Springer
KW  - CP violation
KW  - Hadron-Hadron Scattering
KW  - Branching fraction
KW  - B physics
KW  - Flavor physics
AB  - The first measurement of decay-time-dependent CP asymmetries in the decay B-S(0) -> J/psi K-S(0) and an updated measurement of the ratio of branching fractions B(B-S(0) -> J/psi K-S(0))/B(B-0 -> J/psi K-S(0)) are presented. The results are obtained using data corresponding to an integrated luminosity of 3.0 fb(-1) of proton-proton collisions recorded with the LHCb detector at centre-of-mass energies of 7 and 8 TeV. The results on the CP asymmetries are A(Delta Gamma)(B-S(0) -> J/psi K-S(0)) = 0.49 +/- (0.77)(0.65)(stat) +/- 0.06(syst), C-dir(B-S(0) -> J/psi K-S(0)) = -0.28 +/- 0.41(stat) +/- 0.08(syst), S-mix(B-S(0) -> J/psi K-S(0)) = -0.08 +/- 0.40(stat) +/- 0.08(syst). The ratio B(B-S(0) -> J/psi K-S(0))/B(B-0 -> J/psi K-S(0)) is measured to be 0.0431 +/- 0.0017(stat) +/- 0.0012(syst) +/- 0.0025(f(s)/f(d)), where the last uncertainty is due to the knowledge of the B-S(0) and B-0 production fractions.
SN  - 1029-8479
UR  - http://arxiv.org/abs/1503.07055
UR  - https://doi.org/10.1007/JHEP06(2015)131
DO  - 10.1007/JHEP06(2015)131
LA  - English
N1  - WOS:000356954700001
ID  - LHCbCollaborationAaij_etal2015
ER  -