Abstract

We have carried out a generalization of the continuum-distorted-wave (CDW) model for single ionization of atoms by ion impact where the interaction of the active electron with the target is represented by a model potential. We apply this model to the ionization of He by proton and highly charged bare-ion impact. Doubly differential cross sections are calculated and compared with the available experimental data at high impact energy. Very good agreement is obtained for emission in the forward direction.

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