This Letter reports a measurement of the CP violation observables S J/ψK 0 S ; C J/ψK 0 S in the decay channel B0 → J/ψ K0 S 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 K0 S = 0.73 ± 0.07 (stat) ± 0.04 (syst) ; C J/ψK 0 S = 0.03 ± 0.09 (stat) ± 0.01 (syst). Both values are consistent with the current world averages ; within expectations from the Standard Model. © 2013 CERN.
Measurement of the time-dependent CP asymmetry in B0 → J/ψ K0 S decays
PALANO, Antimo;PAPPAGALLO, MARCO IGNAZIO;
2013-01-01
Abstract
This Letter reports a measurement of the CP violation observables S J/ψK 0 S ; C J/ψK 0 S in the decay channel B0 → J/ψ K0 S 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 K0 S = 0.73 ± 0.07 (stat) ± 0.04 (syst) ; C J/ψK 0 S = 0.03 ± 0.09 (stat) ± 0.01 (syst). Both values are consistent with the current world averages ; within expectations from the Standard Model. © 2013 CERN.File in questo prodotto:
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