Fragmentation of positronium
Journal Article
·
· Physical Review. A
- Department of Applied Mathematics and Theoretical Physics, Queen's University, Belfast BT7 1NN (United Kingdom)
- School of Computing and Mathematical Sciences, Oxford Brookes University, Wheatley Campus, Oxford OX33 1HX (United Kingdom)
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 et al. [Phys. Rev. Lett. 89, 173402 (2002)] on Ps(1s)+He(1{sup 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.
- OSTI ID:
- 20718355
- Journal Information:
- Physical Review. A, Journal Name: Physical Review. A Journal Issue: 1 Vol. 72; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
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