QUANTUM SCATTERING ON THE SIGMA-PI INTERSECTION OF POTENTIAL-ENERGY SURFACES

Quantum nonadiabatic scattering on three potential energy surfaces characterized by a single intersection point of the conic type is considered. The angular distribution of the products and cross section energy dependences for the different channels are calculated. The results are compared with those calculated by the trajectory surface hopping method. It is shown that for high nonresonant energies the trajectory surface hopping method does not give a quantitative and for resonant energies not even a qualitative description of the angular distribution.