Investigation of the coupled K ̅K ̅N-πK ̅Σ system using Faddeev method

Abstract

Base on the non-relativistic Faddeev AGS method, three-body calculations of the coupled and quasi-bound KKN-πKΣ system are performed in the momentum space. Different phenomenological models of KN-πΣ potentials with one and two-pole structures of KN-πΣ resonance are used to study the dependence of double-kaonic system binding energy on the coupled KN-πΣ interaction. Also, the effect of the KK  repulsive interaction is investigated in this system. The results of this work show that the binding energy of KKN-πKΣ quasi-bound state is 61-110MeV and the width is about . 

Keywords

• Λ(1405)
• kaonic nuclei and K^- K^- p