Semi-classical approaches to the ion-atom scattering

Three semi-classical approaches to the simulation of ion-atom scattering: the Kirschbaum-Wilets, the Cohen energy-bounded, and the wave-packet - are used to calculate the ionization and charge-transfer cross sections for the scattering of fully stripped sulfur ions on atomic hydrogen. Their comparison in the high-energy regime is provided. Elements of microscopic analysis of Kirschbaum-Wilets trajectories are given.