{"title":"大N - c极限下重子-重子相互作用。","authors":"Thomas Vonk, Ulf-G Meißner","doi":"10.1140/epja/s10050-025-01602-9","DOIUrl":null,"url":null,"abstract":"<p><p>We analyze the large- <math><msub><mi>N</mi> <mi>c</mi></msub> </math> structure of the baryon-baryon potential derived in the framework of SU(3) chiral perturbation theory up to next-to-leading order including contact interactions as well as one-meson and two-meson exchange diagrams. Moreover, we assess the impact of SU(3) symmetry breaking from a large- <math><msub><mi>N</mi> <mi>c</mi></msub> </math> perspective and show that the leading order results can successfully be applied to the hyperon-nucleon potential. Our results include a reduction of the number of relevant low-energy constants of the leading order contact interaction from fifteen to three, and we show that consistency is preserved if the <i>F</i>/<i>D</i> ratio is given by 2/3 and the <i>C</i>/<i>D</i> ratio for the baryon decuplet-to-octet coupling is given by 2.</p>","PeriodicalId":75005,"journal":{"name":"The European physical journal. A, Hadrons and nuclei","volume":"61 6","pages":"135"},"PeriodicalIF":0.0000,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12170797/pdf/","citationCount":"0","resultStr":"{\"title\":\"<ArticleTitle xmlns:ns0=\\\"http://www.w3.org/1998/Math/MathML\\\">The baryon-baryon interaction in the large- <ns0:math><ns0:msub><ns0:mi>N</ns0:mi> <ns0:mi>c</ns0:mi></ns0:msub> </ns0:math> limit.\",\"authors\":\"Thomas Vonk, Ulf-G Meißner\",\"doi\":\"10.1140/epja/s10050-025-01602-9\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>We analyze the large- <math><msub><mi>N</mi> <mi>c</mi></msub> </math> structure of the baryon-baryon potential derived in the framework of SU(3) chiral perturbation theory up to next-to-leading order including contact interactions as well as one-meson and two-meson exchange diagrams. Moreover, we assess the impact of SU(3) symmetry breaking from a large- <math><msub><mi>N</mi> <mi>c</mi></msub> </math> perspective and show that the leading order results can successfully be applied to the hyperon-nucleon potential. Our results include a reduction of the number of relevant low-energy constants of the leading order contact interaction from fifteen to three, and we show that consistency is preserved if the <i>F</i>/<i>D</i> ratio is given by 2/3 and the <i>C</i>/<i>D</i> ratio for the baryon decuplet-to-octet coupling is given by 2.</p>\",\"PeriodicalId\":75005,\"journal\":{\"name\":\"The European physical journal. A, Hadrons and nuclei\",\"volume\":\"61 6\",\"pages\":\"135\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2025-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12170797/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"The European physical journal. A, Hadrons and nuclei\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1140/epja/s10050-025-01602-9\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2025/6/16 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"The European physical journal. A, Hadrons and nuclei","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1140/epja/s10050-025-01602-9","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/6/16 0:00:00","PubModel":"Epub","JCR":"","JCRName":"","Score":null,"Total":0}
The baryon-baryon interaction in the large- Nc limit.
We analyze the large- structure of the baryon-baryon potential derived in the framework of SU(3) chiral perturbation theory up to next-to-leading order including contact interactions as well as one-meson and two-meson exchange diagrams. Moreover, we assess the impact of SU(3) symmetry breaking from a large- perspective and show that the leading order results can successfully be applied to the hyperon-nucleon potential. Our results include a reduction of the number of relevant low-energy constants of the leading order contact interaction from fifteen to three, and we show that consistency is preserved if the F/D ratio is given by 2/3 and the C/D ratio for the baryon decuplet-to-octet coupling is given by 2.
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