Accurate treatment of the scattering and atomic states in the K−d system

The low-energy K−d scattering amplitudes were calculated. A “chirally motivated” K¯N-πΣ potential was constructed and used as an input in the three-body Faddeev-type AGS equations. The 1s level shift and width of kaonic deuterium were then calculated using an optical two-body K−-d potential, which reproduces the three-body results on K−d scattering.