Model for H+2(v = 0)–He collisions above 2 eV

Abstract

A classical model with no adjustable parameters employing Lennard-Jones type potentials is used to describe collision processes between H2+ (ν=0) ions and He atoms at relative energies above 2 eV. The assumptions that justify such an approach are discussed as well as the possibility of additional simplifications. Model predictions for collision-induced dissociation and reactive scattering cross sections compare favorably with data from four laboratories. Predicted angular distributions of product HeH+ and H2+ as well as vibrational and rotational energy partitioning for these products are also reported.