Murdoch University Research Repository

Welcome to the Murdoch University Research Repository

The Murdoch University Research Repository is an open access digital collection of research
created by Murdoch University staff, researchers and postgraduate students.

Learn more

Angle-differential cross sections and spin-asymmetry parameters for spin-polarized electron-impact excitation of spin-polarized cesium atoms

Baum, G., Förster, S., Pavlović, N., Roth, B., Bartschat, K. and Bray, I. (2004) Angle-differential cross sections and spin-asymmetry parameters for spin-polarized electron-impact excitation of spin-polarized cesium atoms. Physical Review A - Atomic, Molecular, and Optical Physics, 70 (1).

[img]
Preview
PDF - Published Version
Download (358kB)
Link to Published Version: http://dx.doi.org/10.1103/PhysRevA.70.012707
*Subscription may be required

Abstract

Relative angle-differential cross sections and spin-asymmetry parameters are presented for spin-polarized electron-impact excitation of spin-polarized cesium atoms for incident projectile energies ranging from 5 eV to 25 eV. The experimental data, obtained in the angular range of 40° to 140°, are compared with predictions from a nonrelativistic convergent close-coupling treatment for the differential cross section and the (spin) exchange asymmetry and from a semirelativistic R matrix with pseudostates approach. The latter also yields nonzero values for two other spin asymmetries that require the presence of explicitly relativistic effects such as the spin-orbit interaction. The overall agreement between the experimental data and the theoretical predictions is satisfactory.

Item Type: Journal Article
Murdoch Affiliation: School of Mathematical and Physical Sciences
Publisher: The American Physical Society
Copyright: © 2004 The American Physical Society
URI: http://researchrepository.murdoch.edu.au/id/eprint/10125
Item Control Page Item Control Page

Downloads

Downloads per month over past year