Quantum dynamics of (H−, HD) collisions at low energies

Time-independent quantum mechanical results are reported for H− + HD (v = 1, j = 0) rearrangement reaction at low energies, for a range of total angular momentum values. Initial state selected reaction probability and integral reaction cross section values, when plotted as a function of relative translational energy reveal a number of prominent resonances arising from the quasibound states of the H−⋯HD van der Waals complex. It is shown that the nonreactive vibrational quenching dominates over both the exchange reactions and that H2 formation is more favourable than HD.