ATLAS results on $J/ψp$ resonances in the $Λ_b→J/ψpK$ decays

A study of J/psi p resonances in the Lambda_b -> J/psi p K decays with large m(pK) invariant masses is presented by the ATLAS experiment at the LHC. The analysis is based on a combined sample of pp collision data at centre-of-mass energies of 7 TeV and 8 TeV corresponding to integrated luminositi...

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Detalles Bibliográficos
Autores principales: Yeletskikh, Ivan, ATLAS Collaboration
Lenguaje:eng
Publicado: 2021
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/2781325
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author Yeletskikh, Ivan
ATLAS Collaboration
author_facet Yeletskikh, Ivan
ATLAS Collaboration
author_sort Yeletskikh, Ivan
collection CERN
description A study of J/psi p resonances in the Lambda_b -> J/psi p K decays with large m(pK) invariant masses is presented by the ATLAS experiment at the LHC. The analysis is based on a combined sample of pp collision data at centre-of-mass energies of 7 TeV and 8 TeV corresponding to integrated luminosities of 4.9 fb-1 and 20.6 fb-1, respectively. Although the data prefer the model with two or more pentaquark states, the model without pentaquarks is not excluded. The pentaquark masses and widths obtained using the model with two pentaquarks are consistent with those from the LHCb experiment.
id cern-2781325
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2021
record_format invenio
spelling cern-27813252022-11-15T13:38:37Zhttp://cds.cern.ch/record/2781325engYeletskikh, IvanATLAS CollaborationATLAS results on $J/ψp$ resonances in the $Λ_b→J/ψpK$ decaysParticle Physics - ExperimentA study of J/psi p resonances in the Lambda_b -> J/psi p K decays with large m(pK) invariant masses is presented by the ATLAS experiment at the LHC. The analysis is based on a combined sample of pp collision data at centre-of-mass energies of 7 TeV and 8 TeV corresponding to integrated luminosities of 4.9 fb-1 and 20.6 fb-1, respectively. Although the data prefer the model with two or more pentaquark states, the model without pentaquarks is not excluded. The pentaquark masses and widths obtained using the model with two pentaquarks are consistent with those from the LHCb experiment.ATL-PHYS-SLIDE-2021-537oai:cds.cern.ch:27813252021-09-16
spellingShingle Particle Physics - Experiment
Yeletskikh, Ivan
ATLAS Collaboration
ATLAS results on $J/ψp$ resonances in the $Λ_b→J/ψpK$ decays
title ATLAS results on $J/ψp$ resonances in the $Λ_b→J/ψpK$ decays
title_full ATLAS results on $J/ψp$ resonances in the $Λ_b→J/ψpK$ decays
title_fullStr ATLAS results on $J/ψp$ resonances in the $Λ_b→J/ψpK$ decays
title_full_unstemmed ATLAS results on $J/ψp$ resonances in the $Λ_b→J/ψpK$ decays
title_short ATLAS results on $J/ψp$ resonances in the $Λ_b→J/ψpK$ decays
title_sort atlas results on $j/ψp$ resonances in the $λ_b→j/ψpk$ decays
topic Particle Physics - Experiment
url http://cds.cern.ch/record/2781325
work_keys_str_mv AT yeletskikhivan atlasresultsonjpspresonancesinthelbjpspkdecays
AT atlascollaboration atlasresultsonjpspresonancesinthelbjpspkdecays

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