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Measurement of the effective B-S(0) -> J/psi K-S(0) lifetime

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dc.contributor.author	LHCb Collaboration
dc.contributor.author	Oyanguren Campos, Arantza
dc.contributor.author	Ruiz Valls, Pablo
dc.date.accessioned	2014-03-31T10:37:39Z
dc.date.available	2014-03-31T10:37:39Z
dc.date.issued	2013
dc.identifier.citation	LHCb Collaboration Oyanguren Campos, Arantza Ruiz Valls, Pablo 2013 Measurement of the effective B-S(0) -> J/psi K-S(0) lifetime Nuclear Physics B 873 2 275 292
dc.identifier.uri	http://hdl.handle.net/10550/33846
dc.description.abstract	This paper reports the first measurement of the effective B-S(0) -> J/psi K-S(0) lifetime and an updated measurement of its time-integrated branching fraction. Both measurements are performed with a data sample, corresponding to an integrated luminosity of 1.0 fb(-1) of pp collisions, recorded by the LHCb experiment in 2011 at a centre-of-mass energy of 7 TeV. The results are: tau(eff)(J/psi KS0) = 1.75 +/- 0.12 (stat) +/- 0.07 (syst) ps and B(B-S(0) -> J/psi K-S(0)) = (1.97 +/- 0.23) x 10(-5). For the latter measurement, the uncertainty includes both statistical and systematic sources.
dc.relation.ispartof	Nuclear Physics B, 2013, vol. 873, num. 2, p. 275-292
dc.subject	Física nuclear
dc.subject	Partícules (Física nuclear)
dc.title	Measurement of the effective B-S(0) -> J/psi K-S(0) lifetime
dc.type	journal article	es_ES
dc.date.updated	2014-03-31T10:37:39Z
dc.identifier.doi	10.1016/j.nuclphysb.2013.04.021
dc.identifier.idgrec	094070
dc.rights.accessRights	open access	es_ES
dc.identifier.url	10.1016/j.nuclphysb.2013.04.021