Electron—hydrogen-atom collisions in the presence of a laser field: Born-Oppenheimer approximation
- 1 March 1979
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 19 (3), 1058-1061
- https://doi.org/10.1103/physreva.19.1058
Abstract
The collision of an electron and a hydrogen atom in the presence of a laser field is studied within a previously proposed approximation (based on the space-translation approximation) for the bound states of the hydrogen atom. The Green's-function formalism is applied to derive an expression for the scattering amplitude associated to multiphoton processes. The Born-Oppenheimer approximation is obtained and numerical calculations are performed for the inelastic excitation. It is shown as expected that exchange effects are important only for scattering processes involving low-energy electrons.
Keywords
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