Electron-impact ionization of helium for equal-energy-sharing kinematics

Stelbovics, A.T., Bray, I., Fursa, D.V. and Bartschat, K. (2005) Electron-impact ionization of helium for equal-energy-sharing kinematics. Physical Review A - Atomic, Molecular, and Optical Physics, 71 (5).

Abstract

The close-coupling approach to electron-helium single ionization is analyzed and several ways of defining the scattering amplitudes are determined, for both equal- and unequal-energy outgoing electrons. Nevertheless, the various definitions all lead to the same cross section. The convergent close-coupling (CCC) method with Laguerre (CCC-L) and box-based (CCC-B) target functions is applied to calculate electron-impact ionization of helium for the cases where the two outgoing electrons have equal energy. Excellent absolute agreement with experiment is obtained for all available cases of comparison.

Item Type:	Journal Article
Murdoch Affiliation:	Centre for Atomic, Molecular and Surface Physics
Publisher:	The American Physical Society
URI:	http://researchrepository.murdoch.edu.au/id/eprint/13490

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