TY  - JOUR
AU  - LHCb Collaboration (Aaij, R. et al
AU  - Garcia Martin, L. M.
AU  - Henry, L.
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
AU  - Remon Alepuz, C.
AU  - Ruiz Valls, P.
AU  - Ruiz Vidal, J.
AU  - Sanchez Mayordomo, C.
PY  - 2018
DA  - 2018//
TI  - Measurement of CP asymmetry in B-s(0) -> (DsK +/-)-K-/+ decays
T2  - J. High Energy Phys.
JO  - Journal of High Energy Physics
SP  - 059
EP  - 28pp
VL  - 03
IS  - 3
PB  - Springer
KW  - CKM angle gamma
KW  - CP violation
KW  - B physics
KW  - Flavor physics
KW  - Hadron-Hadron scattering (experiments)
AB  - We report the measurements of the CP-violating parameters in B-s(0) -> (DsK +/-)-K--/+ decays observed in pp collisions, using a data set corresponding to an integrated luminosity of 3.0 fb(-1) recorded with the LHCb detector. We measure C-f = 0.73 +/- 0.14 +/- 0.05, A(f)(Delta Gamma) = 0.39 +/- 0.28 +/- 0.15, A(<(f)over) (Delta Gamma)(bar>) = 0.31 +/- 0.28 +/- 0.15, S-f = -0.52 +/- 0.20 +/- 0.07, S-(f) over bar = -0.49 +/- 0.20 +/- 0.07, where the uncertainties are statistical and systematic, respectively. These parameters are used together with the world-average value of the B-s(0) mixing phase, -2 beta(s), to obtain a measurement of the CKM angle gamma from B-s(0) -> (DsK +/-)-K--/+ decays, yielding gamma – (128 (+17)(-22))degrees modulo 180 degrees, where the uncertainty contains both statistical and systematic contributions. This corresponds to 3.8 sigma evidence for CP violation in the interference between decay and decay after mixing.
SN  - 1029-8479
UR  - http://arxiv.org/abs/1712.07428
UR  - https://doi.org/10.1007/JHEP03(2018)059
DO  - 10.1007/JHEP03(2018)059
LA  - English
N1  - WOS:000428689300001
ID  - LHCbCollaborationAaij_etal2018
ER  -