{"title":"查莫铵类态Y(4230)的隐谐强衰变","authors":"G. Ganbold","doi":"10.1134/S1063779624700175","DOIUrl":null,"url":null,"abstract":"<p>We have studied hidden-charm strong decays of the charmonium-like resonant state <span>\\(Y(4320)\\)</span> within the framework of a confined quark model by interpreting the resonance as a four-quark state with molecular-type interpolating current. The strong decay of <span>\\(Y\\)</span> into a vector and a scalar resonance, with the latter decaying, subsequently to a pair of charged pseudoscalar states, has been investigated. We have calculated the partial widths of the strong decays <span>\\(Y \\to {{\\pi }^{ + }}{{\\pi }^{ - }}{J \\mathord{\\left/ {\\vphantom {J \\Psi }} \\right. \\kern-0em} \\Psi }\\)</span> and <span>\\(Y \\to {{K}^{ + }}{{K}^{ - }}{J \\mathord{\\left/ {\\vphantom {J \\Psi }} \\right. \\kern-0em} \\Psi }\\)</span>, and their branching ratio, which is recently determined by the BESIII Collaboration. The estimated proportion of branching and the calculated partial strong decay widths are in reasonable agreement with the most recent experimental results.</p>","PeriodicalId":729,"journal":{"name":"Physics of Particles and Nuclei","volume":null,"pages":null},"PeriodicalIF":0.6000,"publicationDate":"2024-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Hidden-Charm Strong Decays of Charmonium-Like State Y(4230)\",\"authors\":\"G. Ganbold\",\"doi\":\"10.1134/S1063779624700175\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>We have studied hidden-charm strong decays of the charmonium-like resonant state <span>\\\\(Y(4320)\\\\)</span> within the framework of a confined quark model by interpreting the resonance as a four-quark state with molecular-type interpolating current. The strong decay of <span>\\\\(Y\\\\)</span> into a vector and a scalar resonance, with the latter decaying, subsequently to a pair of charged pseudoscalar states, has been investigated. We have calculated the partial widths of the strong decays <span>\\\\(Y \\\\to {{\\\\pi }^{ + }}{{\\\\pi }^{ - }}{J \\\\mathord{\\\\left/ {\\\\vphantom {J \\\\Psi }} \\\\right. \\\\kern-0em} \\\\Psi }\\\\)</span> and <span>\\\\(Y \\\\to {{K}^{ + }}{{K}^{ - }}{J \\\\mathord{\\\\left/ {\\\\vphantom {J \\\\Psi }} \\\\right. \\\\kern-0em} \\\\Psi }\\\\)</span>, and their branching ratio, which is recently determined by the BESIII Collaboration. The estimated proportion of branching and the calculated partial strong decay widths are in reasonable agreement with the most recent experimental results.</p>\",\"PeriodicalId\":729,\"journal\":{\"name\":\"Physics of Particles and Nuclei\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.6000,\"publicationDate\":\"2024-08-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Physics of Particles and Nuclei\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S1063779624700175\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"PHYSICS, PARTICLES & FIELDS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physics of Particles and Nuclei","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1134/S1063779624700175","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, PARTICLES & FIELDS","Score":null,"Total":0}
Hidden-Charm Strong Decays of Charmonium-Like State Y(4230)
We have studied hidden-charm strong decays of the charmonium-like resonant state \(Y(4320)\) within the framework of a confined quark model by interpreting the resonance as a four-quark state with molecular-type interpolating current. The strong decay of \(Y\) into a vector and a scalar resonance, with the latter decaying, subsequently to a pair of charged pseudoscalar states, has been investigated. We have calculated the partial widths of the strong decays \(Y \to {{\pi }^{ + }}{{\pi }^{ - }}{J \mathord{\left/ {\vphantom {J \Psi }} \right. \kern-0em} \Psi }\) and \(Y \to {{K}^{ + }}{{K}^{ - }}{J \mathord{\left/ {\vphantom {J \Psi }} \right. \kern-0em} \Psi }\), and their branching ratio, which is recently determined by the BESIII Collaboration. The estimated proportion of branching and the calculated partial strong decay widths are in reasonable agreement with the most recent experimental results.
期刊介绍:
The journal Fizika Elementarnykh Chastits i Atomnogo Yadr of the Joint Institute for Nuclear Research (JINR, Dubna) was founded by Academician N.N. Bogolyubov in August 1969. The Editors-in-chief of the journal were Academician N.N. Bogolyubov (1970–1992) and Academician A.M. Baldin (1992–2001). Its English translation, Physics of Particles and Nuclei, appears simultaneously with the original Russian-language edition. Published by leading physicists from the JINR member states, as well as by scientists from other countries, review articles in this journal examine problems of elementary particle physics, nuclear physics, condensed matter physics, experimental data processing, accelerators and related instrumentation ecology and radiology.