Abstract

A classical model is proposed for the electron capture process in collisions of highly charged, fully stripped ions with atomic hydrogen at low and intermediate impact energies. The basic electron capture mechanism is supposed to consist of classically allowed, over-barrier transitions that occur at large internuclear separations of the colliding partners. The cross section calculations are performed for ionic charges Z=8, 10, 14, 18, 26 and 36 in the impact energy range E=0.5-100 keV amu-1. Electron transition probabilities versus impact parameter are presented for the collisions of Ar18+ with H(1s). Comparison is made with other available theoretical data.

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