Počet záznamů: 1

Isospin mixing effects in the low-energy (K)over-barN-pi Sigma interaction

  1. 1.
    0338551 - UJF-V 2010 RIV US eng J - Článek v odborném periodiku
    Revai, J. - Shevchenko, Nina V.
    Isospin mixing effects in the low-energy (K)over-barN-pi Sigma interaction.
    Physical Review. C. Roč. 79, č. 3 (2009), 035202/1-035202/11 ISSN 0556-2813
    Grant CEP: GA AV ČR KJB100480801
    Výzkumný záměr: CEZ:AV0Z10480505
    Klíčová slova: KAON-NUCLEON INTERACTIONS * SIGMA-HYPERON PRODUCTION * K-P INTERACTIONS
    Kód oboru RIV: BE - Teoretická fyzika
    Impakt faktor: 3.477, rok: 2009

    New strong coupled-channels (K) over barN-pi Sigma potential, reproducing all existing experimental data and suitable for using in an accurate few-body calculations, is constructed. Isospin breaking effects of direct inclusion of the Coulomb interaction and using of physical masses in calculations are investigated. The 1s level shift and width of kaonic hydrogen, consistent with the scattering data, was obtained and the corresponding exact strong K(-)p scattering length was calculated. One- and two-pole form of Lambda(1405) resonance was considered.
    Trvalý link: http://hdl.handle.net/11104/0182292