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Chirally motivated separable potential model for eta N amplitudes
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SYSNO ASEP 0422070 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Chirally motivated separable potential model for eta N amplitudes Author(s) Cieplý, Aleš (UJF-V) RID, ORCID, SAI
Smejkal, J. (CZ)Number of authors 2 Source Title Nuclear Physics. A. - : Elsevier - ISSN 0375-9474
Roč. 919, DEC (2013), s. 46-66Number of pages 21 s. Publication form Print - P Language eng - English Country NL - Netherlands Keywords Chrial model ; eta-nucleon amplitude ; Baryon resonances Subject RIV BE - Theoretical Physics R&D Projects GAP203/12/2126 GA ČR - Czech Science Foundation (CSF) Institutional support UJF-V - RVO:61389005 UT WOS 000327826900004 EID SCOPUS 84886614495 DOI 10.1016/j.nuclphysa.2013.10.003 Annotation We analyze the eta N interaction using a coupled channel separable potential model that implements the chiral symmetry. The model predicts an eta N scattering length Ha(eta N) approximate to 0.7 fm and in-medium subthreshold attraction most likely sufficient to generate eta-nuclear bound states. The energy dependence of the eta N 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. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2014
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