Dynamic correlation in the electron angular distribution in ionization of helium by ion impact

J. M. MONTI; O. A. FOJÓN; J. HANSSEN; R. D. RIVAROLA

Sendai

Congreso; International Conference on Many Particle Spectroscopy of Atoms, Molecules, Clusters and Surfaces; 2010

Tohoku University

Single ionization of helium by proton impact is investigated in terms of a fourbody distorted wave model. In this approximation both electrons are considered as active, being one of them ionized whereas the other remains in a residual target bound state. The influence of dynamic correlation between electrons is investigated by comparison with a fourbody uncorrelated distorted wave model. Double differential cross sections as a function of the emission angle for fixed electron energies and different collision energies are presented.