DISSOCIATION AND FORMATION OF NEGATIVE IONS IN SLOW COLLISIONS WITH ATOMS. ALLOWANCE FOR THE QUANTUM-MECHANICAL NATURE OF THE MOTION OF ATOMS IN THE CASE OF HORIZONTAL

A. Z. Devdariani, Yu. N. Demkov

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

In the framework of the method of a short-range potential, a study is made of the dissociation of negative ions in a collision, A + B-, and their creation in scattering, A + B + e. In contrast to earlier papers, the motion of the atoms is treated quantum-mechanically. If one makes the natural assumption that the term of the system AB depends weakly on the internuclear distance, the problem reduces to the solution of Helmholtz's equation on a halfplane with mixed boundary condition that depends linearly on the coordinate. An exact analytic solution of this problem is found. A formula is derived for the dissociation cross section near the reaction threshold. The conditions are investigated under which the formulas go over into those previously obtained for classical motion of the atoms.

Original languageEnglish
Pages (from-to)981-989
Number of pages9
JournalTheoretical and Mathematical Physics
Volume21
Issue number1
DOIs
StatePublished - Oct 1974

Scopus subject areas

  • Statistical and Nonlinear Physics
  • Mathematical Physics

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