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Electron-helium S-wave model benchmark calculations. II. Double ionization, single ionization with excitation, and double excitation

Bartlett, P.L. and Stelbovics, A.T. (2010) Electron-helium S-wave model benchmark calculations. II. Double ionization, single ionization with excitation, and double excitation. Physical Review A - Atomic, Molecular, and Optical Physics, 81 (2). Article number 022716.

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Link to Published Version: http://dx.doi.org/10.1103/PhysRevA.81.022716
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Abstract

The propagating exterior complex scaling (PECS) method is extended to all four-body processes in electron impact on helium in an S-wave model. Total and energy-differential cross sections are presented with benchmark accuracy for double ionization, single ionization with excitation, and double excitation (to autoionizing states) for incident-electron energies from threshold to 500 eV. While the PECS three-body cross sections for this model given in the preceding article are in good agreement with other methods, there are considerable discrepancies for these four-body processes. With this model we demonstrate the suitability of the PECS method for the complete solution of the electron-helium system.

Publication Type: Journal Article
Murdoch Affiliation: School of Engineering and Energy
Publisher: The American Physical Society
Copyright: © 2010 American Physical Society
URI: http://researchrepository.murdoch.edu.au/id/eprint/4248
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