QUANTUM-MECHANICAL CLOSE-COUPLING CALCULATIONS OF COLLISION-INDUCED DISSOCIATION IN HE-2 - A DISCRETIZED CONTINUUM MODEL(H)

A standard close coupling method is applied to collision-induced disso ciation in a non-reactive He+H-2 system. The dissociative continuum is approximately described with a set of discrete states which are obtai ned by confining the internuclear motion of H-2 in a box. The scatteri ng is assumed to proceed in a T-shape configuration but under a realis tic potential energy surface. The convergence of the resulting probabi lity is examined with respect to the number of coupled channels and th e size of the box for the discretization. Well-converged dissociation probabilities are obtained and show strong dependence on the initial v ibrational state.