Low energy positron scattering from krypton and xenon

Makochekanwa, C. and MacHacek, J. and Jones, A. and Caradonna, P. and Slaughter, D. and McEachran, R. and Sullivan, J. et al. 2012. Low energy positron scattering from krypton and xenon, in Proceedings of the 27th International Conference on Photonic, Electronic and Atomic Collisions (ICPEAC), Jul 27-Aug 2 2011, 388 (Part 7): Article 072021. Belfast, Northern Ireland: IOP.

Source Title

Journal of Physics: Conference Series

DOI

10.1088/1742-6596/388/7/072021

ISSN

1742-6588

School

Department of Physics and Astronomy

URI

http://hdl.handle.net/20.500.11937/28662

Collection

Curtin Research Publications

Abstract

Absolute grand total, positronium formation, and grand total minus positronium formation cross sections for positron scattering from krypton and xenon have been measured with an energy resolution of ~60 meV over the energy range 0.5-60 eV. Experimental results for elastic differential cross sections measured using the same apparatus, for selected energies both below and above the Ps threshold, are also presented. Theoretical estimations of these cross sections are also performed using the convergent close coupling method (CCC) and the relativistic optical potential (ROP) approach.