Theoretical study of charge transfer inHe++H2collisions in the

Abstract

A theoretical investigation of charge transfer in He +H2 collisions in the ultralow-energy regime (meV) has been conducted. Molecular states have been obtained by using the multiconfiguration selfconsistent-field method. The reaction rate constants have been calculated for dissociative and radiative charge-transfer processes. Agreement with the recent measurements of Schauer et al. [J. Chem. Phys. 91, 4593 (1989)] is satisfactory. The present study provides a theoretical rationale for the experimental findings by interpreting the detailed collision dynamics.