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  - 2014
DA  - 2014//
TI  - Measurement of the CP-violating phase phi(s) in (B)over-bar(s)(0) -> J / psi pi(+)pi(-) decays
T2  - Phys. Lett. B
JO  - Physics Letters B
SP  - 186
EP  - 195
VL  - 736
PB  - Elsevier Science Bv
AB  - The mixing-induced CP-violating phase phi(s) in B-s(0) and (B) over bar (0)(s) decays is measured using the J / psi pi(+)pi(-) final state in data, taken from 3 fb(-1) of integrated luminosity, collected with the LHCb detector in 7 and 8 TeV centre-of-mass pp collisions at the LHC. A time-dependent flavour-tagged amplitude analysis, allowing for direct CP violation, yields a value for the phase phi(s) = 70 +/- 68 +/- 8 mrad. This result is consistent with the Standard Model expectation and previous measurements.
SN  - 0370-2693
UR  - http://arxiv.org/abs/1405.4140
UR  - https://doi.org/10.1016/j.physletb.2014.06.079
DO  - 10.1016/j.physletb.2014.06.079
LA  - English
N1  - WOS:000341487800025
ID  - LHCbCollaborationAaij_etal2014
ER  -