O Rath Spivack et al 1998 J. Phys. B: At. Mol. Opt. Phys. 31 845 doi:10.1088/0953-4075/31/4/028
processes with positive-ion targets in coplanar symmetric geometry
O Rath Spivack
, J Rasch, Colm T Whelan, R J Allan
and H R J Walters§
We present results for the electron impact ionization of a sequence of hydrogenic ions and the first five ions in the He isoelectronic sequence. These are obtained in coplanar symmetric geometry for a wide range of energies, from near threshold into the intermediate range. We have concentrated the analysis on the role of the ion in the incident and final channel. All calculations are performed in a distorted-wave Born approximation (DWBA) which allows for elastic scattering in both the incident and final channels. The role of repulsion between the final state electrons is discussed in a simple model. Comparisons are also shown with DWBA calculations that include a polarization potential, and with a Coulomb-Born approximation.
- PACS
- Subjects
- Dates
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Issue 4 (28 February 1998)
Received 16 September 1997, in final form 6 November 1997
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processes with positive-ion targets in coplanar symmetric geometry
O Rath Spivack et al 1998 J. Phys. B: At. Mol. Opt. Phys. 31 845
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