Prediction of hidden charm strange molecular baryon states with heavy quark spin symmetry

We have studied the meson-baryon S−wave interaction in the isoscalar hidden-charm strange sector with the coupled-channels, ηΛ, J/ψΛ, D¯Ξ, D¯Λ, D¯Ξ , D¯Ξ, D¯ Λ, D¯Ξ , D¯Ξ in J=1/2, J/ψΛ, D¯Ξ, D¯ Λ, D¯Ξ , D¯Ξ , D¯Ξ in 3/2 and D¯Ξ in 5/2. We impose constraints of heavy quark spin symmetry in the inter...

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Detalles Bibliográficos
Autores: Xiao, C. W., Nieves, Juan Miguel, Oset, Eulogi
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/206862
Acceso en línea:http://hdl.handle.net/10261/206862
Access Level:acceso abierto
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spelling Prediction of hidden charm strange molecular baryon states with heavy quark spin symmetryXiao, C. W.Nieves, Juan MiguelOset, EulogiWe have studied the meson-baryon S−wave interaction in the isoscalar hidden-charm strange sector with the coupled-channels, ηΛ, J/ψΛ, D¯Ξ, D¯Λ, D¯Ξ , D¯Ξ, D¯ Λ, D¯Ξ , D¯Ξ in J=1/2, J/ψΛ, D¯Ξ, D¯ Λ, D¯Ξ , D¯Ξ , D¯Ξ in 3/2 and D¯Ξ in 5/2. We impose constraints of heavy quark spin symmetry in the interaction and obtain the non vanishing matrix elements from an extension of the local hidden gauge approach to the charm sector. The ultraviolet divergences are renormalized using the same meson-baryon-loops regulator previously employed in the non-strange hidden charm sector, where a good reproduction of the properties of the newly discovered pentaquark states is obtained. We obtain five states of 1/2, four of 3/2 and one of 5/2, which could be compared in the near future with forthcoming LHCb experiments. The 5/2, three of the 3/2 and another three of the 1/2 resonances are originated from isoscalar D¯Ξ and D¯Ξ interactions. They should be located just few MeV below the corresponding thresholds (4446, 4513, 4588 and 4655 MeV), and would be SU(3)-siblings of the isospin 1/2 D¯Σ quasi-bound states previously found, and that provided a robust theoretical description of the P(4440), P(4457) and P(4312) LHCb exotic states. The another two 1/2 and 3/2 states obtained in this work are result of the D¯Ξ−D Λ coupled-channels isoscalar interaction, are significantly broader than the others, with widths of the order of 15 MeV, being D¯ Λ the dominant decay channel.This research has been supported by the Spanish Ministerio de Ciencia, Innovación y Universidades and European FEDER funds under Contracts FIS2017-84038-C2-1-P, FIS2017-84038-C2-2-P and SEV-2014-0398. This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No. 824093.Elsevier BVMinisterio de Economía y Competitividad (España)Ministerio de Ciencia, Innovación y Universidades (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2020202020192020info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/206862reponame: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 2017-2020/FIS2017-84038-C2-1-Pinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/FIS2017-84038-C2-2-Pinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/SEV-2014-0398info:eu-repo/grantAgreement/EC/H2020/824093http://dx.doi.org/10.1016/j.physletb.2019.135051Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2068622026-05-22T06:33:51Z
dc.title.none.fl_str_mv Prediction of hidden charm strange molecular baryon states with heavy quark spin symmetry
title Prediction of hidden charm strange molecular baryon states with heavy quark spin symmetry
spellingShingle Prediction of hidden charm strange molecular baryon states with heavy quark spin symmetry
Xiao, C. W.
title_short Prediction of hidden charm strange molecular baryon states with heavy quark spin symmetry
title_full Prediction of hidden charm strange molecular baryon states with heavy quark spin symmetry
title_fullStr Prediction of hidden charm strange molecular baryon states with heavy quark spin symmetry
title_full_unstemmed Prediction of hidden charm strange molecular baryon states with heavy quark spin symmetry
title_sort Prediction of hidden charm strange molecular baryon states with heavy quark spin symmetry
dc.creator.none.fl_str_mv Xiao, C. W.
Nieves, Juan Miguel
Oset, Eulogi
author Xiao, C. W.
author_facet Xiao, C. W.
Nieves, Juan Miguel
Oset, Eulogi
author_role author
author2 Nieves, Juan Miguel
Oset, Eulogi
author2_role author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Ministerio de Ciencia, Innovación y Universidades (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
description We have studied the meson-baryon S−wave interaction in the isoscalar hidden-charm strange sector with the coupled-channels, ηΛ, J/ψΛ, D¯Ξ, D¯Λ, D¯Ξ , D¯Ξ, D¯ Λ, D¯Ξ , D¯Ξ in J=1/2, J/ψΛ, D¯Ξ, D¯ Λ, D¯Ξ , D¯Ξ , D¯Ξ in 3/2 and D¯Ξ in 5/2. We impose constraints of heavy quark spin symmetry in the interaction and obtain the non vanishing matrix elements from an extension of the local hidden gauge approach to the charm sector. The ultraviolet divergences are renormalized using the same meson-baryon-loops regulator previously employed in the non-strange hidden charm sector, where a good reproduction of the properties of the newly discovered pentaquark states is obtained. We obtain five states of 1/2, four of 3/2 and one of 5/2, which could be compared in the near future with forthcoming LHCb experiments. The 5/2, three of the 3/2 and another three of the 1/2 resonances are originated from isoscalar D¯Ξ and D¯Ξ interactions. They should be located just few MeV below the corresponding thresholds (4446, 4513, 4588 and 4655 MeV), and would be SU(3)-siblings of the isospin 1/2 D¯Σ quasi-bound states previously found, and that provided a robust theoretical description of the P(4440), P(4457) and P(4312) LHCb exotic states. The another two 1/2 and 3/2 states obtained in this work are result of the D¯Ξ−D Λ coupled-channels isoscalar interaction, are significantly broader than the others, with widths of the order of 15 MeV, being D¯ Λ the dominant decay channel.
publishDate 2019
dc.date.none.fl_str_mv 2019
2020
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/206862
url http://hdl.handle.net/10261/206862
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #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 2017-2020/FIS2017-84038-C2-1-P
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/FIS2017-84038-C2-2-P
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/SEV-2014-0398
info:eu-repo/grantAgreement/EC/H2020/824093
http://dx.doi.org/10.1016/j.physletb.2019.135051
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier BV
publisher.none.fl_str_mv Elsevier BV
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
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