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

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Title:	Measurement of the time-dependent CP asymmetry in B0 → J/ψ K0S decays
Author:	Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN
Other authors:	Universitat Ramon Llull. La Salle; CERN
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.
Publication date:	2013-04-10
Subject (UDC):	53 - Física
Subject(s):	Gran col·lisionador d'hadrons (França i Suïssa) Col·lisions (Física nuclear) Física nuclear--Investigació Física--Mesuraments
Rights:	© CERN L'accés als continguts d'aquest document queda condicionat a l'acceptació de les condicions d'ús establertes per la següent llicència Creative Commons:http://creativecommons.org/licenses/by-nc-nd/4.0/
Pages:	8 p.
Document type:	Article Article - Published version
DOI:	https://doi.org/10.1016/j.physletb.2013.02.054
Published by:	Elsevier
Publish at:	Physics Letters B, Vol. 721, No. 1-3 (Abril 2013)
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