Time-resolved photoelectron signals from bifurcating electron wavepackets propagated across conical intersection in path-branching dynamics

A computational scheme of energy- and geometry-dependent photoelectron signals from the dynamics near a conical intersection based on a simplified path-branching representation of nonadiabatic electron wavepacket dynamics is proposed. Taking the NO2X/A conical intersection as an example, the results of the present scheme compared to those from previous study based on the method of full quantum vibrational wavepacket shows qualitative agreement suggesting promising application to computation in larger systems intractable to full quantum exact methods.