CDW THEORY OF IONIZATION BY ION IMPACT WITH A HARTREE-FOCK-SLATER DESCRIPTION OF THE TARGET

We have carried out a generalization of the continuum-distorted-wave ( CDW) model for single ionization of atoms by ion impact where the inte raction of the active electron with the target is represented by a mod el potential. We apply this model to the ionization of He by proton an d highly charged bare-ion impact. Doubly differential cross sections a re calculated and compared with the available experimental data at hig h impact energy. Very good agreement is obtained for emission in the f orward direction.