Molecular nature of the ωc (3120) and its analogy with the ω (2012)

We make a study of the ωc(3120), one of the five ωc states observed by the LHCb Collaboration, which is well reproduced as a molecular state from the Ξc∗K̄ and ωc∗η channels mostly. The state with JP=3/2- decays to ΞcK̄ in the D wave, and we include this decay channel in our approach, as well as the...

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Autores: Ikeno, N., Liang, W.H., Oset, Eulogi
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2024
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/364883
Acceso en línea:http://hdl.handle.net/10261/364883
Access Level:acceso abierto
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spelling Molecular nature of the ωc (3120) and its analogy with the ω (2012)Ikeno, N.Liang, W.H.Oset, EulogiWe make a study of the ωc(3120), one of the five ωc states observed by the LHCb Collaboration, which is well reproduced as a molecular state from the Ξc∗K̄ and ωc∗η channels mostly. The state with JP=3/2- decays to ΞcK̄ in the D wave, and we include this decay channel in our approach, as well as the effect of the Ξc∗ width. With all these ingredients, we determine the fraction of the ωc(3120) width that goes into ΞcπK̄, which could be a measure of the Ξc∗K̄ molecular component, but due to a relatively big binding, compared to its analogous ω(2012) state, we find only a small fraction of about 3%, which makes this measurement difficult with present statistics. As an alternative, we evaluate the scattering length and effective range of the Ξc∗K̄ and ωc∗η channels, which, together with the binding and width of the ωc(3120) state, could give us an answer to the issue of the compositeness of this state when these magnitudes are determined experimentally, something feasible nowadays, for instance, measuring correlation functions.American Physical SocietyEuropean CommissionMinisterio de Ciencia e Innovación (España)Generalitat ValencianaAgencia Estatal de Investigación (España)SCOAPConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2024202420242024info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/364883reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/FIS2017-84038-C2-1-Pinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-112777GB-I00info:eu-repo/grantAgreement/GVA//PROMETEOinfo:eu-repo/grantAgreement/EC/H2020/824093http://dx.doi.org/10.1103/PhysRevD.109.054023Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3648832026-05-22T06:33:51Z
dc.title.none.fl_str_mv Molecular nature of the ωc (3120) and its analogy with the ω (2012)
title Molecular nature of the ωc (3120) and its analogy with the ω (2012)
spellingShingle Molecular nature of the ωc (3120) and its analogy with the ω (2012)
Ikeno, N.
title_short Molecular nature of the ωc (3120) and its analogy with the ω (2012)
title_full Molecular nature of the ωc (3120) and its analogy with the ω (2012)
title_fullStr Molecular nature of the ωc (3120) and its analogy with the ω (2012)
title_full_unstemmed Molecular nature of the ωc (3120) and its analogy with the ω (2012)
title_sort Molecular nature of the ωc (3120) and its analogy with the ω (2012)
dc.creator.none.fl_str_mv Ikeno, N.
Liang, W.H.
Oset, Eulogi
author Ikeno, N.
author_facet Ikeno, N.
Liang, W.H.
Oset, Eulogi
author_role author
author2 Liang, W.H.
Oset, Eulogi
author2_role author
author
dc.contributor.none.fl_str_mv European Commission
Ministerio de Ciencia e Innovación (España)
Generalitat Valenciana
Agencia Estatal de Investigación (España)
SCOAP
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
description We make a study of the ωc(3120), one of the five ωc states observed by the LHCb Collaboration, which is well reproduced as a molecular state from the Ξc∗K̄ and ωc∗η channels mostly. The state with JP=3/2- decays to ΞcK̄ in the D wave, and we include this decay channel in our approach, as well as the effect of the Ξc∗ width. With all these ingredients, we determine the fraction of the ωc(3120) width that goes into ΞcπK̄, which could be a measure of the Ξc∗K̄ molecular component, but due to a relatively big binding, compared to its analogous ω(2012) state, we find only a small fraction of about 3%, which makes this measurement difficult with present statistics. As an alternative, we evaluate the scattering length and effective range of the Ξc∗K̄ and ωc∗η channels, which, together with the binding and width of the ωc(3120) state, could give us an answer to the issue of the compositeness of this state when these magnitudes are determined experimentally, something feasible nowadays, for instance, measuring correlation functions.
publishDate 2024
dc.date.none.fl_str_mv 2024
2024
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
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dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/364883
url http://hdl.handle.net/10261/364883
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
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info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-112777GB-I00
info:eu-repo/grantAgreement/GVA//PROMETEO
info:eu-repo/grantAgreement/EC/H2020/824093
http://dx.doi.org/10.1103/PhysRevD.109.054023
Sí
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dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
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