Mostra el registre parcial de l'element

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.accessioned2020-10-07T06:55:47Z
dc.date.accessioned2023-10-02T06:28:34Z
dc.date.available2020-10-07T06:55:47Z
dc.date.available2023-10-02T06:28:34Z
dc.date.created2012
dc.date.issued2012-10-08
dc.identifier.urihttp://hdl.handle.net/20.500.14342/3212
dc.description.abstractA sample of 114±11 B0s→J/ψK−π+ signal events obtained with 0.37  fb−1 of pp collisions at √s=7  TeV collected by the LHCb experiment is used to measure the branching fraction and polarization amplitudes of the B0s→J/ψ¯¯¯¯K*0 decay, with ¯¯¯¯K*0→K−π+. The K−π+ mass spectrum of the candidates in the B0s peak is dominated by the ¯¯¯¯K*0 contribution. Subtracting the nonresonant K−π+ component, the branching fraction of B0s→J/ψ¯¯¯¯K*0 is (4.4+0.5−0.4±0.8)×10−5, where the first uncertainty is statistical and the second is systematic. A fit to the angular distribution of the decay products yields the K*0 polarization fractions fL=0.50±0.08±0.02 and f∥=0.19+0.10−0.08±0.02.eng
dc.format.extent9 p.cat
dc.language.isoengcat
dc.publisherAmerican Physical Societycat
dc.relation.ispartofPhysical Review D, 2012, No. 86 (Octubre)cat
dc.rightsAttribution 4.0 International
dc.rights© CERN
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.sourceRECERCAT (Dipòsit de la Recerca de Catalunya)
dc.subject.otherGran col·lisionador d'hadrons (França i Suïssa)cat
dc.subject.otherPartícules (Física nuclear)cat
dc.titleMeasurement of the B0s→J/ψ¯¯¯¯K*0 branching fraction and angular amplitudescat
dc.typeinfo:eu-repo/semantics/articlecat
dc.typeinfo:eu-repo/semantics/publishedVersioncat
dc.rights.accessLevelinfo:eu-repo/semantics/openAccess
dc.embargo.termscapcat
dc.subject.udc53
dc.identifier.doihttps://doi.org/10.1103/PhysRevD.86.071102cat


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Mostra el registre parcial de l'element

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