The semiclassical—classical path theory of direct electron—ion dissociative recombination and e − + H 3+ recombination

Abstract

The theory of dissociative recombination (DR) is reviewed. A new semiclassical—classical path theory of DR is presented. It is applicable to DR with or without curve crossing between the potential energy surfaces associated with molecular ion AB − and neutral AB ∗ dissociative states. A new mechanism is proposed for e-H 3 + recombination. Rydberg molecules are first formed and the periodic interaction of the Rydberg electron with the ionic core causes accumulative rotational and vibrational excitation until dissociation occurs. Recombination is completed via a simultaneous one-electron jump to the ion of the dissociating pair.