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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/132911
Measurement of CP Violation in B0→J/ψK0S Decays
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Measurements are presented of the C P violation observables S and C in the decays of B 0 and ¯ B 0 mesons to the J / ψ K 0 S final state. The data sample corresponds to an integrated luminosity of 3.0 fb − 1 collected with the LHCb experiment in proton-proton collisions at center-of-mass energies of 7 and 8 TeV, and contains a total of 41 560 selected B 0 and ¯ B 0 decays. The analysis of the time evolution of these decays yields S = 0.731 ± 0.035 ( stat ) ± 0.020 ( syst ) and C = − 0.038 ± 0.032 ( stat ) ± 0.005 ( syst ) . In the standard model, S equals sin ( 2 β ) to a good level of precision. The values are consistent with the current world averages and with the standard model expectations.
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BADALOV, Alexey, et al. Measurement of CP Violation in B0→J/ψK0S Decays. Physical Review Letters. 2015. Vol. 115, num. 3, pags. 031601. ISSN 0031-9007. [consulted: 17 of August of 2026]. Available at: https://hdl.handle.net/2445/132911