Abstract
Recent results for proton-argon total ionization cross sections [Kirchner Phys. Rev. Lett. 79, 1658 (1997)] show large disagreement between theory and experiment for energies below 80 keV. To address this problem we have employed a recently developed theoretical method with a more pragmatic approach to the charge screening both in the initial and final channels. The target is considered as a one-electron atom and the interactions between this active electron and remaining target electrons are treated by a model potential including both short- and long-range effects. In the final channel the usual product of two continuum distorted wave functions each associated with a distinct electron-nucleus interaction is used. New results in the present calculation show good agreement in total cross sections for the energy range 10-300 keV with the measurement of Rudd [Rev. Mod. Phys. 57, 965 (1985)].
Original language | English |
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Pages (from-to) | 052702 |
Number of pages | 1 |
Journal | Physical Review A |
Volume | 68 |
Issue number | 5 |
Publication status | Published - Nov 2003 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- General Physics and Astronomy