Chirally motivated separable potential model for ηN amplitudes
- NázevTitle
- Chirally motivated separable potential model for ηN amplitudesChirally motivated separable potential model for ηN amplitudes
- Druh výsledkuResult type
- Článek v časopiseJournal article
- AutořiAuthors
- A. Cieplý, J. Smejkal
- Klíčová slovaKeywords
- chiral model, eta-nucleon amplitude, baryon resonances, in-medium effects, eta-nuclear bound states
- DOIDOI
- 10.1016/j.nuclphysa.2013.10.003
- Časopis / citaceJournal / citation
- Nuclear Physics A 919, 46-66 (2013) · ISSN 0375-9474
- RokYear
- 2013
- JazykLanguage
- eng
- ZáznamyRecords
- ProjektProject
- Institucionální podpora na rozvoj výzkumné org.Institucionální podpora na rozvoj výzkumné org.
- CitovánoCited by
- 27 (INSPIRE-HEP)
- Plný text (open access)Full text (open access)
- https://arxiv.org/pdf/1308.4300
- Citace ke staženíDownload citation
- TXT · BibTeX
AbstraktAbstract
We analyze the ηN interaction using a coupled channel separable potential model that implements the chiral symmetry. The model predicts an ηN scattering length ℜaηN ≈ 0.7 fm and in-medium subthreshold attraction most likely sufficient to generate η-nuclear bound states. The energy dependence of the ηN amplitude and pole content of the model are discussed. An idea of the same origin of the baryon resonances N⋆(1535) and N⋆(1650) is presented.
We analyze the ηN interaction using a coupled channel separable potential model that implements the chiral symmetry. The model predicts an ηN scattering length ℜaηN ≈ 0.7 fm and in-medium subthreshold attraction most likely sufficient to generate η-nuclear bound states. The energy dependence of the ηN amplitude and pole content of the model are discussed. An idea of the same origin of the baryon resonances N⋆(1535) and N⋆(1650) is presented.