Dynamics of the Reaction of Ar+ with D2

Abstract

We report measurements of the velocity vector distributions of the ionic products of collisions of Ar+ with D2 and He for relative energies between 2.26 and 9.1 eV. The ion ArD+ is produced by a direct interaction mechanism which gives considerable forward scattering. The nonreactive scattering of Ar+ by D2 is intense, nearly elastic, and very similar to the scattering of Ar+ by He. Differential reactive cross sections are determined, partially deconvoluted, and compared with results from several other laboratories.