Electron capture in low- and intermediate-energy collisions between completely stripped light ions and metastable H(2s) targets

Abstract
Total cross sections for electron capture from H(2s) targets by He2+ ions have been computed in the impact velocity range 0.05-0.5 au. Calculations were performed using a molecular close-coupling approach with inclusion of electron translation factors. A ten-state molecular basis set was considered. A comparison is made with Landau-Zener results for the same system. Intermediate projectile energy classical Monte Carlo capture cross sections are also presented for H+, He2+, Li3+ and C6+ projectiles.