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Electron-helium scattering within the S-wave model

Plottke, C., Bray, I., Fursa, D.V. and Stelbovics, A.T. (2002) Electron-helium scattering within the S-wave model. Physical Review A - Atomic, Molecular, and Optical Physics, 65 (3).

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The electron-helium scattering system is studied within the S-wave framework with a particular emphasis on one-electron ionization processes. Total ionization and the singly differential cross section for the equal-energy-sharing point are given for three initial states. In addition, discrete excitation cross sections are also given. Whereas generally there is no a priori relationship between cross sections for excitation of corresponding singlet and triplet states, we find that for the case of ionization with equal-energy outgoing electrons the triplet cross section is approximately three times bigger than the corresponding singlet one, irrespective of the initial state or energy.

Item Type: Journal Article
Murdoch Affiliation: Centre for Atomic, Molecular and Surface Physics
Journal or Publication Title: Physical Review A - Atomic, Molecular, and Optical Physics
Publisher: The American Physical Society
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