Studies of HeH: Dissociative Excitation

Abstract

We have used structure and scattering calculations to determine the potential energy curves, non-adiabatic couplings and autoionization widths for the HeH system. These will be used to study a variety of processes ranging from dissociative recombination to mutual neutralization. As an example, we present our results on the direct dissociative excitation of HeH+ by electron impact via excitation to the two lowest excited states of the ion. The results are found to be in good agreement with experiment.