Mostra el registre parcial de l'element

dc.contributorUniversitat Ramon Llull. La Salle
dc.contributorCERN
dc.contributor.authorBadalov, Alexey
dc.contributor.authorCalvo Gómez, Míriam
dc.contributor.authorCamboni, Alessandro
dc.contributor.authorVilasís Cardona, Xavier
dc.contributor.authorLHCb Collaboration - CERN
dc.date.accessioned2020-06-19T17:42:01Z
dc.date.accessioned2023-10-02T06:32:11Z
dc.date.available2020-06-19T17:42:01Z
dc.date.available2023-10-02T06:32:11Z
dc.date.created2014
dc.date.issued2014-06-04
dc.identifier.urihttp://hdl.handle.net/20.500.14342/3289
dc.description.abstractResonant structures in B0→ψ′π−K+ decays are analyzed by performing a four-dimensional fit of the decay amplitude, using pp collision data corresponding to 3  fb−1 collected with the LHCb detector. The data cannot be described with K+π− resonances alone, which is confirmed with a model-independent approach. A highly significant Z(4430)−→ψ′π− component is required, thus confirming the existence of this state. The observed evolution of the Z(4430)− amplitude with the ψ′π− mass establishes the resonant nature of this particle. The mass and width measurements are substantially improved. The spin parity is determined unambiguously to be 1+.eng
dc.format.extent9 p.cat
dc.language.isoengcat
dc.publisherAmerican Physical Societycat
dc.relation.ispartofPhysical Review Letters, 2014, Vol. 112, No. 22 (Juny)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.subject.otherCol·lisions (Física nuclear)cat
dc.titleObservation of the Resonant Character of the Z(4430)− Statecat
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/PhysRevLett.112.222002cat


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Mostra el registre parcial de l'element

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