Three-Body Antikaon-Nucleon Systems

0473760 - ÚJF 2018 RIV AT eng J - Článek v odborném periodiku
Shevchenko, Nina V.
Three-Body Antikaon-Nucleon Systems.
Few-Body Systems. Roč. 58, č. 1 (2017), č. článku UNSP 6. ISSN 0177-7963. E-ISSN 1432-5411
Grant CEP: GA ČR(CZ) GA15-04301S
Institucionální podpora: RVO:61389005
Klíčová slova: three-body * antikaon-nucleon * K p interactions
Obor OECD: Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
Impakt faktor: 1.134, rok: 2017

The paper contains a review of the exact or accurate results achieved in the field of the three-body antikaon-nucleon physics. Different states and processes in (K) over bar NN and (K) over bar(K) over barN systems are considered. In particular, quasi-bound states in K(-)pp and K(-)K(-)p systems were investigated together with antikaonic deuterium atom. Near-threshold scattering of antikaons on deuteron, including the K(-)d scattering length, and applications of the scattering amplitudes are also discussed. All exact three-body results were calculated using some form of Faddeev equations. Different versions of (K) over barN, Sigma N, (K) over bar(K) over bar, and NN potentials, specially constructed for the calculations, allowed investigation of the dependence of the three-body results on the two-body input. Special attention is paid to the antikaon-nucleon interaction, being the most important for the three-body systems. Approximate calculations, performed additionally to the exact ones, demonstrate accuracy of the commonly used approaches.
Trvalý link: http://hdl.handle.net/11104/0270898