Measurement of the time-dependent CP asymmetry in B0 → J/ψ K0S decays

Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN

Publication date

2013-04-10

URI http://hdl.handle.net/20.500.14342/3378

DOI

https://doi.org/10.1016/j.physletb.2013.02.054

Abstract

This Letter reports a measurement of the CP violation observables S J/ψK0S and C J/ψK0S 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 K0 S = 0.73 ± 0.07 (stat) ± 0.04 (syst) and C J/ψK0S = 0.03 ± 0.09 (stat) ± 0.01 (syst). Both values are consistent with the current world averages and within expectations from the Standard Model.

Document Type

Article

Published version

Language

English

Subject (CDU)

53 - Physics

Keywords

Gran col·lisionador d'hadrons (França i Suïssa)

Col·lisions (Física nuclear)

Física nuclear--Investigació

Física--Mesuraments

Pages

8 p.

Publisher

Elsevier

Is part of

Physics Letters B, Vol. 721, No. 1-3 (Abril 2013)

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Rights

Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by-nc-nd/4.0/