https://doi.org/10.1140/epjd/s10053-024-00930-7
Regular Article - Atomic and Molecular Collisions
Ionization of argon atom by positron and electron impact
1
Department of Physics, Faculty of Sciences, LPQSD, University Setif1, 19000, Setif, Algeria
2
CRNA, 02, Boulevard Frantz Fanon, Boite Postale 399, Alger, RP, Algeria
3
LPCT, UMR CNRS 7019, University of Lorraine, 57078, Metz Cedex 3, France
Received:
8
August
2024
Accepted:
29
October
2024
Published online:
21
November
2024
The positron and electron impact ionization of argon 3p at 200 eV impact energy is investigated using a theoretical model called 3CWZ. Within this model all particles of the continuum are represented by Coulomb waves with variable charges Z(r), the post-collision interaction and exchange effects are also included. The triple differential cross section is calculated and compared with recent measurements of Dubois and de Lucio (Atoms 9:78, 2021) and other theories when available, for several kinematics. Our numerical results are in overall good agreement with experiments and illustrate projectile charge effects, better than other available theories.
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© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
