The search for resonance signatures in H+D2 reaction dynamics

To investigate the recent report of the observation of a reactive resonance in the title reaction, we have calculated the ro-vibrationally state-resolved integral cross-sections (ICS) and differential cross-sections (DCS), as well as the vibrational branching ratios for the H+D2(v=j=0)→HD(v′,j′)+D reaction. Oscillatory structure occurring in the state-to-state reaction probabilities does survive partial wave averaging to appear in the integral cross-sections for low j′-values, although not significantly for the j′=7 state recently reported. The resonance picture interpretation of the oscillations is shown to be problematic.