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dc.contributorUniversitat Ramon Llull. La Salle
dc.contributorCERN
dc.contributor.authorCalvo Gómez, Míriam
dc.contributor.authorCamboni, Alessandro
dc.contributor.authorVilasís Cardona, Xavier
dc.contributor.authorLHCb Collaboration - CERN
dc.date.accessioned2020-05-08T13:27:25Z
dc.date.accessioned2023-10-02T06:38:45Z
dc.date.available2020-05-08T13:27:25Z
dc.date.available2023-10-02T06:38:45Z
dc.date.created2011
dc.date.issued2011-01
dc.identifier.urihttp://hdl.handle.net/20.500.14342/3381
dc.description.abstractUsing data collected with the LHCb detector in proton-proton collisions at a centre-of-mass energy of 7 TeV, the hadronic decayB0s→J/ψf0(980) is observed. ThisCP eigenstate mode could be used to measure mixing-induced CP violation in theB0ssystem. Using a fit to theπ+π−mass spectrum with interfering resonances givesRf0/φ≡Γ(B0s→J/ψf0, f0→π+π−)Γ(B0s→J/ψφ, φ→K+K−)= 0.252+0.046+0.027−0.032−0.033. In the interval±90 MeV around980 MeV, corresponding to approximately two fullf0widths we also findR′≡Γ(B0s→J/ψπ+π−,|m(π+π−)−980 MeV|<90 MeV)Γ(B0s→J/ψφ, φ→K+K−)= 0.162±0.022±0.016, where in both casesthe uncertainties are statistical and systematic, respectivelyeng
dc.format.extent8 p.
dc.language.isoeng
dc.publisherElsevier
dc.relation.ispartofPhysics Letters B, Vol. 698, No 2 (Abril 2011)
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights© CERN
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.sourceRECERCAT (Dipòsit de la Recerca de Catalunya)
dc.subject.otherGran col·lisionador d'hadrons (França i Suïssa)
dc.subject.otherProtons
dc.subject.otherPartícules (Física nuclear)
dc.subject.otherCol·lisions (Física nuclear)
dc.titleFirst observation of B0s → J/ψ f0(980) decays
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.rights.accessLevelinfo:eu-repo/semantics/openAccess
dc.embargo.termscap
dc.subject.udc53
dc.identifier.doihttps://doi.org/10.1016/j.physletb.2011.03.006


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