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  - Determination of gamma and-2 beta(s) from charmless two-body decays of beauty mesons
T2  - Phys. Lett. B
JO  - Physics Letters B
SP  - 1
EP  - 11
VL  - 741
PB  - Elsevier Science Bv
AB  - Using the latest LHCb measurements of time-dependent CP violation in the B-s(0) -> K+K- decay, a U-spin relation between the decay amplitudes of B-s(0) -> K+K- and B-0 -> p(+)p(-) decay processes allows constraints to be placed on the angle gamma of the unitarity triangle and on the B-s(0) mixing phase -2 beta(s). Results from an extended approach, which uses additional inputs on B-0 -> pi(0)pi(0) and B+ -> pi(+)pi(0) decays from other experiments and exploits isospin symmetry, are also presented. The dependence of the results on the maximum allowed amount of U-spin breaking is studied. At 68% probability, the value gamma =( 63.5(-6.7)(+7.2))degrees modulo 180 degrees is determined. In an alternative analysis, the value -2 beta(s)= – 0.12(-0.16)(+ 0.14) rad is found. In both measurements, the uncertainties due to U-spin breaking effects up to 50% are included.
SN  - 0370-2693
UR  - http://arxiv.org/abs/1408.4368
UR  - https://doi.org/10.1016/j.physletb.2014.12.015
DO  - 10.1016/j.physletb.2014.12.015
LA  - English
N1  - WOS:000348290800001
ID  - LHCbCollaborationAaij_etal2015
ER  -