Abstract
The impulse approximation is used to calculate cross sections for fragmentation of Ps(1s) in collision with He, Ne, Ar, Kr, and Xe. Triple, double, single, and total cross sections are evaluated. Reasonably good agreement is found with the measurements of Armitage [Phys. Rev. Lett. 89, 173402 (2002)] on Ps(1s)+He(1(1)S) scattering. These absolute measurements comprise the total Ps ionization cross section and the cross section differential with respect to the longitudinal energy of the ejected positron. Characteristics of free electron and free positron scattering are explored in the double and triple differential cross sections for Ps(1s)+Xe scattering.
| Original language | English |
|---|---|
| Article number | 012508 |
| Pages (from-to) | 012508-1-012508-14 |
| Number of pages | 14 |
| Journal | Physical Review A |
| Volume | 72(1) |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Jul 2005 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Physics and Astronomy(all)