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Operativo FEDER Andaluc\u00eda 2014\u20132020","award":["PID2022-140440NB-C22"],"award-info":[{"award-number":["PID2022-140440NB-C22"]}]},{"name":"Junta de Andaluc\u00eda under Contract Nos. Operativo FEDER Andaluc\u00eda 2014\u20132020","award":["UHU-1264517"],"award-info":[{"award-number":["UHU-1264517"]}]},{"name":"Junta de Andaluc\u00eda under Contract Nos. Operativo FEDER Andaluc\u00eda 2014\u20132020","award":["P18-FR-5057"],"award-info":[{"award-number":["P18-FR-5057"]}]},{"name":"Junta de Andaluc\u00eda under Contract Nos. Operativo FEDER Andaluc\u00eda 2014\u20132020","award":["PAIDI FQM-370"],"award-info":[{"award-number":["PAIDI FQM-370"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>The LHCb collaboration has recently announced the discovery of two hidden-charm pentaquark states with strange quark content, Pcs(4338) and Pcs(4459); its analysis points towards having both hadrons\u2019 isospins equal to zero and spin-parity quantum numbers 12\u2212 and 32\u2212, respectively. Herein, we perform a systematical investigation of the qqscc\u00af(q=u,d) system by means of a chiral quark model, along with a highly accurate computational method, the Gaussian expansion approach combined with the complex scaling technique. baryon-meson configurations in both singlet- and hidden-color channels are considered. The Pcs(4338) and Pcs(4459) signals can be well identified as molecular bound states with dominant components \u039bJ\/\u03c8(60%) and \u039ecD(23%) for the lowest-energy case and \u039ecD\u2217(72%) for the highest-energy one. In addition, it seems that some narrow resonances can also be found in each allowed I(JP) channel in the energy region of 4.6\u20135.5 GeV, except for the 1(12\u2212) channel where a shallow bound state with dominant \u039ec\u2217D\u2217 structure is obtained at 4673 MeV with binding energy EB=\u22123 MeV. These exotic states are expected to be confirmed in future high-energy experiments.<\/jats:p>","DOI":"10.3390\/sym16030354","type":"journal-article","created":{"date-parts":[[2024,3,15]],"date-time":"2024-03-15T09:32:30Z","timestamp":1710495150000},"page":"354","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Hidden-Charm Pentaquarks with Strangeness in a Chiral Quark Model"],"prefix":"10.3390","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1938-0026","authenticated-orcid":false,"given":"Gang","family":"Yang","sequence":"first","affiliation":[{"name":"Department of Physics, Zhejiang Normal University, Jinhua 321004, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6120-9962","authenticated-orcid":false,"given":"Jialun","family":"Ping","sequence":"additional","affiliation":[{"name":"Department of Physics and Jiangsu Key Laboratory for Numerical Simulation of Large Scale Complex Systems, Nanjing Normal University, Nanjing 210023, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5838-7103","authenticated-orcid":false,"given":"Jorge","family":"Segovia","sequence":"additional","affiliation":[{"name":"Departamento de Sistemas F\u00edsicos, Qu\u00edmicos y Naturales, Universidad Pablo de Olavide, E-41013 Sevilla, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,3,14]]},"reference":[{"key":"ref_1","unstructured":"The LHCb Collaboration (2015). 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