Charge exchange of a polar molecule at its cation

Autor: E. Yu. Buslov, B. A. Zon
Rok vydání: 2011
Předmět:
Zdroj: Journal of Experimental and Theoretical Physics. 112:38-45
ISSN: 1090-6509
1063-7761
DOI: 10.1134/s1063776110061019
Popis: The Landau-Herring method is used to derive an analytic expression for the one-electron exchange interaction of a polar molecule with its positively charged ion, induced by a σ-electron. Analogously to the classical Van der Pole method, the exchange interaction potential is averaged over the rotational states of colliding particles. The resonant charge-transfer cross section is calculated, and the effect of the dipole moments of the core on the cross section is analyzed. It is shown that allowance for the dependence of the exchange potential on the orientation of the dipole moments relative to the molecular axis may change the dependence of the cross section on the velocity of colliding particles, which is typical of the resonant charge exchange, from the resonance to the quasi-resonance dependence.
Databáze: OpenAIRE