Strong decays of the P c(4312) and its isospin cousin via the QCD sum rules* * Supported by the National Natural Science Foundation (12175068) and the Fundamental Research Funds for the Central Universities of China
{"title":"Strong decays of the P c(4312) and its isospin cousin via the QCD sum rules* * Supported by the National Natural Science Foundation (12175068) and the Fundamental Research Funds for the Central Universities of China","authors":"Xiu-Wu Wang, Zhi-Gang Wang","doi":"10.1088/1674-1137/ad2442","DOIUrl":null,"url":null,"abstract":"In this study, considering the conservation of isospin in the strong decays, we investigate the strong decays of the pentaquark molecule candidate <inline-formula>\n<tex-math><?CDATA $ P_c(4312) $?></tex-math>\n<inline-graphic xlink:href=\"cpc_48_5_053102_M2.jpg\" xlink:type=\"simple\"></inline-graphic>\n</inline-formula> and its possible higher isospin cousin <inline-formula>\n<tex-math><?CDATA $ P_c(4330) $?></tex-math>\n<inline-graphic xlink:href=\"cpc_48_5_053102_M3.jpg\" xlink:type=\"simple\"></inline-graphic>\n</inline-formula> in the framework of the QCD sum rules. Further, the pole residue of the Δ baryon with isospin eigenstate <inline-formula>\n<tex-math><?CDATA $ |II_3\\rangle=|\\frac{3}{2}\\frac{1}{2}\\rangle $?></tex-math>\n<inline-graphic xlink:href=\"cpc_48_5_053102_M4.jpg\" xlink:type=\"simple\"></inline-graphic>\n</inline-formula> is obtained. If the possible pentaquark molecule candidate <inline-formula>\n<tex-math><?CDATA $ P_c(4330) $?></tex-math>\n<inline-graphic xlink:href=\"cpc_48_5_053102_M5.jpg\" xlink:type=\"simple\"></inline-graphic>\n</inline-formula> could be determined, it would shed light on the interpretations of the <inline-formula>\n<tex-math><?CDATA $ P_c $?></tex-math>\n<inline-graphic xlink:href=\"cpc_48_5_053102_M6.jpg\" xlink:type=\"simple\"></inline-graphic>\n</inline-formula> states in future experiments.","PeriodicalId":10250,"journal":{"name":"中国物理C","volume":"40 1","pages":""},"PeriodicalIF":3.6000,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"中国物理C","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1088/1674-1137/ad2442","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"PHYSICS, NUCLEAR","Score":null,"Total":0}
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Abstract
In this study, considering the conservation of isospin in the strong decays, we investigate the strong decays of the pentaquark molecule candidate and its possible higher isospin cousin in the framework of the QCD sum rules. Further, the pole residue of the Δ baryon with isospin eigenstate is obtained. If the possible pentaquark molecule candidate could be determined, it would shed light on the interpretations of the states in future experiments.
期刊介绍：
Chinese Physics C covers the latest developments and achievements in the theory, experiment and applications of:
Particle physics;
Nuclear physics;
Particle and nuclear astrophysics;
Cosmology;
Accelerator physics.
The journal publishes original research papers, letters and reviews. The Letters section covers short reports on the latest important scientific results, published as quickly as possible. Such breakthrough research articles are a high priority for publication.
The Editorial Board is composed of about fifty distinguished physicists, who are responsible for the review of submitted papers and who ensure the scientific quality of the journal.
The journal has been awarded the Chinese Academy of Sciences ‘Excellent Journal’ award multiple times, and is recognized as one of China''s top one hundred key scientific periodicals by the General Administration of News and Publications.
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