Post-collision interaction effects in the ionization of atomic hydrogen by electron impact.

Abstract

We report triply differential cross sections for electron-impact ionization of atomic hydrogen for near-symmetric geometry at incident energies of 250 and 100 eV. The calculation is based on the Glauber approximation (GA). The effect of the post-collision interaction (PCI) is incorporated in the GA using a classical method. The angular distributions of the ejected electrons predicted by the present method are in reasonably good agreement with experiment. The inclusion of the PCI improves the results considerably.