Multi-electron processes in atomic collisions - theory

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

卷:154

Article; Proceedings Paper

Nagy, L

关键词: multi-electron transitions;    double ionization;    ionization-excitation;    double excitation;    helium atom;   

DOI  :  10.1016/S0168-583X(99)00007-5

来源: Elsevier

【 摘 要 】

For the theoretical description of the multi-electron processes induced by charged particle impact we use a relatively simple perturbative method. The second-order approximation is valid for protons and antiprotons of moderate and high velocities. Electron correlation is taken into account by the use of configuration-interaction wavefunctions. The agreement with the available experimental data for some two-electron processes in the helium depends on the quality of the wavefunctions used. (C) 1999 Elsevier Science B.V. All rights reserved.

【 授权许可】

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