The destruction of negative ions in slow collisions with atoms: Taking into account the quantum-mechanical character of nuclear motions

Abstract

The collisional destruction of negative ions close to the reaction threshold is considered using the delta-function model. The dynamics of an electron and atoms is explicitly included in the Schrodinger equation. The use of an integral transformation allowed the problem of solving the partial differential equation to be reduced to solving an ordinary second-order differential equation. The forms of the spectrum of free electrons were found to be similar for two possible arrangements of quasi-molecule terms. A generalization of the suggested approach was used in the problem of the interaction of one tilted term with a group of parallel tilted terms in a quantum description of the motion of atoms. A simple equation was obtained which led to a correct electron distribution exponential function.