This Letter reports a measurement of the CP violation observables S_{J/ψ K0S} and C_{J/ψ K0S} in the decay channel B0 → J/ψ K0S performed with 1.0 fb^−1 of pp collisions at √s = 7 TeV collected by the LHCb experiment. The fit to the data yields S_{J/ψ K0S} = 0.73 ± 0.07(stat) ± 0.04(syst) and C_{J/ψ K0S} = 0.03 ± 0.09(stat) ± 0.01(syst). Both values are consistent with the current world averages and within expectations from the Standard Model.
R. Aaij, C. Abellan Beteta, A. Adametz, B. Adeva, M. Adinolfi, C. Adrover, et al. (2013). Measurement of the Time-Dependent CP Asymmetry in B0 → J/ψ K0S decays. PHYSICS LETTERS. SECTION B, 721(1-3), 24-31 [10.1016/j.physletb.2013.02.054].
Measurement of the Time-Dependent CP Asymmetry in B0 → J/ψ K0S decays
CARBONE, ANGELO;GALLI, DOMENICO;PERAZZINI, STEFANO;VAGNONI, VINCENZO MARIA;ZANGOLI, MARIA;
2013
Abstract
This Letter reports a measurement of the CP violation observables S_{J/ψ K0S} and C_{J/ψ K0S} in the decay channel B0 → J/ψ K0S performed with 1.0 fb^−1 of pp collisions at √s = 7 TeV collected by the LHCb experiment. The fit to the data yields S_{J/ψ K0S} = 0.73 ± 0.07(stat) ± 0.04(syst) and C_{J/ψ K0S} = 0.03 ± 0.09(stat) ± 0.01(syst). Both values are consistent with the current world averages and within expectations from the Standard Model.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
