MULTICHANNEL QUANTUM-DEFECT THEORY SIMULATION OF THE ZERO-KINETIC-ENERGY PHOTOELECTRON-SPECTRUM OF H-2

The multichannel quantum defect theory (MQDT) is applied to the simula tion of the upsilon(+)=2 band of the zero-kinetic-energy (ZEKE) photoe lectron spectrum of molecular hydrogen and also to the photoionization spectrum involving autoionizing Rydberg states in the region between the upsilon(+)=1 and upsilon(+)=2 thresholds. The results of the calcu lations are compared with previously reported experimental results [J. Chem. Phys. 96, 4149 (1992)]. The calculations are in very good agree mentwith experiment and provide quantitative confirmation of the previ ously proposed mechanisms for intensity perturbation.