Abstract
A theoretical analysis is presented for the nonadiabatic photodissociation process of hydrogen fluoride and its deuterated species. Four electronic states X 1 S + , a 3 P, A 1 P, and 3 S + are involved in the studies. Based on the accurate ab inito calcula- tions of the potential energy curves, transition dipole moment and spin-orbit couplings among the accessible states, the time dependent quantum wave packet approach with the split-operator scheme is employed to investigate the dissociative dynamics. The dissociative process is analyzed via the evolution of the wave packets. The total cross sections, partial cross sections and branching fractions for both HF and DF initially excited from the vibrational levels v= 0i3 of the ground state are evaluated. The cal- culations are compared with the previous investigations and the present prediction for a broad range of the incident photon energies.
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