Single electron capture from He targets

Single electron capture by impact of bare heavy ions on He targets is studied for intermediate and high collision energies. We focus our analysis on the use of distorted wave models within the impact parameter approximation. For proton impact, total cross sections for capture to selective final states are presented. Results corresponding to capture to any final state are also shown for several projectiles with charge . Theoretical total cross sections calculated in the present work using the continuum distorted wave - eikonal initial state and the continumm distorted wave - eikonal final state approximations are compared with continuum distorted wave results and available experimental data. A criterion to determine which, among the distorted wave approximations analysed in the present work, is the most appropriate to describe a given collision system is discussed.