LOW-TEMPERATURE DISSOCIATIVE RECOMBINATION OF ELECTRONS WITH H-2(-2(+) MOLECULAR-IONS(), HD+ AND D)

The reaction of dissociative recombination is investigated taking into account the electron and rotation-vibrational coupling. Basic equatio ns are formulated within the framework of the multichannel quantum-def ect theory for the collision T-matrix. Combining the rigorous account of nonadiabatic coupling in the closed channels with respect to small vibrational excitation with the contribution of far channels along the energy (considered in the adiabatic approximation), we develop a flex ible and fairly simple calculation procedure. A coupling among the clo sed and open Rydberg channels via a dissociative continuum is studied consistently. Isotopic behaviour of the partial and total cross sectio ns, and rate constants of the reaction were analysed in detail. Compar ison with experiment shows a high susceptibility of results to the bas ic parameter of the theory.