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

    Access Status
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    Authors
    Bartlett, P.
    Stelbovics, Andris
    Date
    2010
    Type
    Journal Article
    
    Metadata
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    Citation
    Bartlett, Philip L. and Stelbovics, Andris T. 2010. Electron-helium S-wave model benchmark calculations. II. Double ionization, single ionization with excitation, and double excitation. Physical Review A. 81 (2): pp. 022716-1 - 022716-9.
    Source Title
    Physical Review A
    DOI
    10.1103/PhysRevA.81.022716
    ISSN
    1050-2947
    School
    Department of Imaging and Applied Physics
    URI
    http://hdl.handle.net/20.500.11937/12349
    Collection
    • Curtin Research Publications
    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 [ Phys. Rev. A 81 022715 (2010)] 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.

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