Počet záznamů: 1  

Faddeev calculations of the (K)over-bar N N system with a chirally motivated (K)over-bar N interaction. I. Low-energy K (-) d scattering and antikaonic deuterium

  1. 1.
    0433912 - ÚJF 2015 RIV US eng J - Článek v odborném periodiku
    Shevchenko, Nina V. - Revai, J.
    Faddeev calculations of the (K)over-bar N N system with a chirally motivated (K)over-bar N interaction. I. Low-energy K (-) d scattering and antikaonic deuterium.
    Physical Review. C. Roč. 90, č. 3 (2014), 034003. ISSN 0556-2813
    Grant CEP: GA ČR(CZ) GAP203/12/2126; GA MŠMT LG14038
    Institucionální podpora: RVO:61389005
    Klíčová slova: Faddeev calculations * kaonic hydrogen * X-rays
    Kód oboru RIV: BE - Teoretická fyzika
    Impakt faktor: 3.733, rok: 2014

    A chirally-motivated coupled-channel (K) over bar N potential, reproducing all low-energy experimental data on K-p scattering and kaonic hydrogen and suitable for using in accurate few-body calculations, was constructed. The potential was used for calculations of low-energy amplitudes of elastic K- d scattering using Faddeev-type Alt-Grassberger-Sandhas (AGS) equations with coupled (K) over bar N N and pi Sigma N channels. A complex K- - d potential reproducing the three-body K- d amplitudes was constructed and used for calculation of the 1s level shift and the width of kaonic deuterium. The predicted shift Delta E-1s(K- d) similar to -830 eV and width Gamma(K- d)(1s) approximate to 1055 eV are close to our previous results obtained with phenomenological (K) over bar N potentials. No quasi-bound states in the K- d system were found.
    Trvalý link: http://hdl.handle.net/11104/0238128

     
     
Počet záznamů: 1  

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