Accurate treatment of the scattering and atomic states in the image system

The low-energy image scattering amplitudes were calculated. A “chirally motivated” image 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 image potential, which reproduces the three-body results on image scattering.