Modified BEA calculations of He2+impact double electron capture cross sections of atoms
- 14 November 1985
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 18 (21) , 4283-4293
- https://doi.org/10.1088/0022-3700/18/21/015
Abstract
The recent BEA model developed by Chatterjee et al. (1984) for the calculations of double electron capture cross sections by multi-charged ions incident on heavy targets has been suitably modified. The concept of partial rearrangement of the target after the capture of the first electron has been incorporated. The method has been used for the computation of cross sections for double electron capture by He2+ ions up to an impact energy of 1 MeV from He, Li, Ar and Kr. Hartree-Fock velocity distributions for the target electrons have been used in the calculations. The present calculations show improvement over the previous method and reasonably good agreement is observed with the available experiments and other theoretical results.Keywords
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