Počet záznamů: 1

Separable potential model for K- N interactions at low energies

  1. 1.
    0341255 - UJF-V 2010 RIV DE eng J - Článek v odborném periodiku
    Cieplý, Aleš - Smejkal, J.
    Separable potential model for K- N interactions at low energies.
    European Physical Journal A. Roč. 43, č. 2 (2010), s. 191-208 ISSN 1434-6001
    Grant CEP: GA ČR GA202/09/1441
    Výzkumný záměr: CEZ:AV0Z10480505
    Klíčová slova: CHIRAL PERTURBATION-THEORY * KAON-NUCLEON INTERACTIONS * SCATTERING LENGTHS
    Kód oboru RIV: BE - Teoretická fyzika
    Impakt faktor: 2.592, rok: 2010

    The effective separable meson-baryon potentials are constructed to match the equivalent chiral amplitudes up to the second order in external meson momenta. We fit the model parameters (low-energy constants) to the threshold and low-energy K- p data. In the process, the K--proton bound-state problem is solved exactly in the momentum space and the 1s level characteristics of the kaonic hydrogen are computed simultaneously with the available low-energy K- p cross-sections. The model is also used to describe the pi Sigma mass spectrum and the energy dependence of the K- n amplitude.
    Trvalý link: http://hdl.handle.net/11104/0184295