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Measurement of CP violation in B-s(0) ->Phi Phi decays

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Measurement of CP violation in B-s(0) ->Phi Phi decays

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dc.contributor.author	LHCb Collaboration
dc.contributor.author	Martínez Vidal, Fernando
dc.contributor.author	Oyanguren Campos, Arantza
dc.contributor.author	Ruiz Valls, Pablo
dc.contributor.author	Sánchez Mayordomo, Carlos
dc.date.accessioned	2016-04-20T09:39:48Z
dc.date.available	2016-04-20T09:39:48Z
dc.date.issued	2014
dc.identifier.citation	LHCb Collaboration Martínez Vidal, Fernando Oyanguren Campos, Arantza Ruiz Valls, Pablo Sánchez Mayordomo, Carlos 2014 Measurement of CP violation in B-s(0) ->Phi Phi decays Physical Review D 90 5 052011-1 052011-17
dc.identifier.uri	http://hdl.handle.net/10550/52863
dc.description.abstract	A measurement of the decay time-dependent CP-violating asymmetry in B-s(0) -> phi phi decays is presented, along with measurements of the T-odd triple-product asymmetries. In this decay channel, the CP-violating weak phase arises from the interference between B-s(0) -(B) over bar (0)(s) mixing and the loop-induced decay amplitude. Using a sample of proton-proton collision data corresponding to an integrated luminosity of 3.0 fb(-1) collected with the LHCb detector, a signal yield of approximately 4000 B-s(0) -> phi phi decays is obtained. The CP-violating phase is measured to be phi(s) = -0.17 +/- 0.15(stat) +/- 0.03(syst) rad. The triple-product asymmetries are measured to be A(U) = -0.003 +/- 0.017(stat) +/- 0.006(syst) and A(V) = -0.017 +/- 0.017(stat) +/- 0.006(syst). Results are consistent with the hypothesis of CP conservation.
dc.language.iso	eng
dc.relation.ispartof	Physical Review D, 2014, vol. 90, num. 5, p. 052011-1-052011-17
dc.subject	Física nuclear
dc.title	Measurement of CP violation in B-s(0) ->Phi Phi decays
dc.type	journal article	es_ES
dc.date.updated	2016-04-20T09:39:48Z
dc.identifier.doi	10.1103/PhysRevD.90.052011
dc.identifier.idgrec	101843
dc.rights.accessRights	open access	es_ES