Počet záznamů: 1  

Chirally motivated separable potential model for eta N amplitudes

  1. 1. 0422070 - UJF-V 2014 RIV NL eng J - Článek v odborném periodiku
    Cieplý, Aleš - Smejkal, J.
    Chirally motivated separable potential model for eta N amplitudes.
    Nuclear Physics. A. Roč. 919, DEC (2013), s. 46-66. ISSN 0375-9474
    Grant CEP: GA ČR(CZ) GAP203/12/2126
    Institucionální podpora: RVO:61389005
    Klíčová slova: Chrial model * eta-nucleon amplitude * Baryon resonances
    Kód oboru RIV: BE - Teoretická fyzika
    Impakt faktor: 2.499, rok: 2013

    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.
    Trvalý link: http://hdl.handle.net/11104/0228339