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    Calculation of atomic photoionization using the nonsingular convergent close-coupling method

    Access Status
    Fulltext not available
    Authors
    Bray, A.
    Kheifets, A.
    Bray, Igor
    Date
    2017
    Type
    Journal Article
    
    Metadata
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    Citation
    Bray, A. and Kheifets, A. and Bray, I. 2017. Calculation of atomic photoionization using the nonsingular convergent close-coupling method. Physical Review A. 95 (5): Article ID 053405.
    Source Title
    Physical Review A
    DOI
    10.1103/PhysRevA.95.053405
    ISSN
    2469-9926
    School
    Department of Physics and Astronomy
    URI
    http://hdl.handle.net/20.500.11937/54356
    Collection
    • Curtin Research Publications
    Abstract

    The convergent close-coupling method for atomic photoionization is modified by treating the singularity in the Green's function analytically. The resultant close-coupling equations are then free of any singularities, and can be solved at all incident energies including at the exact thresholds. The utility and superiority of the approach is demonstrated by considering single photoionization of the ground state of helium at photoelectron energies from the ionic n=1,2,3 thresholds through to 1 keV. For completeness, the double photoionization cross section is also presented.

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