A method for solving the quantum inverse scattering problem for coupled channels at fixed energy

Abstract

This paper describes the inversion of a scattering problem with coupled channels at fixed energy. The coupling potential matrix is obtained from the [Formula: see text]-matrix with the modified Newton–Sabatier method with a special expansion of the integral kernel and a determination of the potential matrix by using the coupled radial equations. The method is applied to problems restricted to two channels and with a monopole, dipole and quadrupole coupling ([Formula: see text]) between the channels. The inversion is shown to work quite satisfactorily and is useful for heavy ion scattering in nuclear physics.