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
- DOIDOI
- 10.1016/j.nuclphysa.2013.10.003
- Časopis / citaceJournal / citation
- Nuclear Physics A. 2013, 919 46-66. ISSN 0375-9474.
- RokYear
- 2013
- JazykLanguage
- eng
- WoSWoS
- 000327826900004
- ScopusScopus
- 2-s2.0-84886614495
- RIVRIV
- RIV/68407700:21670/13:00214921!RIV14-MSM-21670___
- ProjektProject
- Institucionální podpora na rozvoj výzkumné org.Institucionální podpora na rozvoj výzkumné org.
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.