Abstract
We study the ionization of helium (fie) in collision with antiprotons (p) in the energy range from 10 keV to 1000 keV. We adopt a semiclassical single center close coupling approach in which the wave function for the electron is expanded in a B-spline basis centered on the nucleus of the He atom, The calculations are performed using two different models: the independent particle (IP) model and the one-electron (OE) approximation. The interaction between the active electron and the rest of the atom, i.e. passive electron and nucleus, is represented by a model potential. The results obtained are compared with experimental data as well as with existing theoretical calculations. (c) 2005 Published by Elsevier B.V.
| Original language | English |
|---|---|
| Pages (from-to) | 318-323 |
| Number of pages | 6 |
| Journal | Nuclear Instruments & Methods in Physics Research - Section B: Beam Interactions with Materials and Atoms |
| Volume | 233 |
| Issue number | 1-4 |
| Publication status | Published - May 2005 |
ASJC Scopus subject areas
- Surfaces, Coatings and Films
- Instrumentation
- Surfaces and Interfaces