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

Journal Article · Sun May 15 04:00:00 EDT 2005 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.71.052716· OSTI ID:20717769

Stelbovics, A T; Bray, I; Fursa, D V; Bartschat, K ^[1]

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1. Centre for Atomic, Molecular, and Surface Physics, Murdoch University, Perth 6150 (Australia)

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.

• OSTI ID: 20717769
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 5 Vol. 71; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
COMPARATIVE EVALUATIONS
COUPLING
ELECTRON-ATOM COLLISIONS
ELECTRONS
HELIUM
IONIZATION
SCATTERING AMPLITUDES