Multi-electron processes in large-angle scattering between slow Neq+ (q=1, 2 and 3) and Ar

The charge states of the scattered and recoil ions were simultaneously measured at a large scattering angle (ΘCM=40o) in single collisions of Ne ions with Ar atoms at an energy of 5keV (relative velocity v=0.10a.u.). The incident charge (q) dependence of the charge state correlations between Ne and Ar ions are discussed for q=1, 2 and 3. It was found that the mean charge state of Ne ions (q-bar Ne) and Ar ions (q-bar Ar) increased with q, while the number of emitted electrons (q-bar Ne+q-bar Ar-q) was independent of q