Flux analysis for calculating reaction probabilities with real wave packets

A recent approach to obtain scattering probabilities involves propagating the real part of a wave packet and analysis in the asymptotic product channel. We show that real wave packet propagation can also be used with analysis methods based on flux through a surface. We also show the relation between asymptotic product analysis and flux-based methods. Flux analysis with real wave packets is illustrated with an application to D + H2→ DH + H in three dimensions.