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    Solving close-coupling equations in momentum space without singularities for charged targets

    Access Status
    Open access via publisher
    Authors
    Bray, A.
    Abdurakhmanov, I.
    Kadyrov, A.
    Fursa, D.
    Bray, Igor
    Date
    2017
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Bray, A. and Abdurakhmanov, I. and Kadyrov, A. and Fursa, D. and Bray, I. 2017. Solving close-coupling equations in momentum space without singularities for charged targets. Computer Physics Communications. 212: pp. 55-58.
    Source Title
    Computer Physics Communications
    DOI
    10.1016/j.cpc.2016.10.008
    Additional URLs
    http://manuscript.elsevier.com/S0010465516303149/pdf/S0010465516303149.pdf
    ISSN
    0010-4655
    School
    Department of Physics and Astronomy
    Funding and Sponsorship
    http://purl.org/au-research/grants/arc/DP160102106
    URI
    http://hdl.handle.net/20.500.11937/8269
    Collection
    • Curtin Research Publications
    Abstract

    The analytical treatment of the Green's function in the convergent close-coupling method (Bray et al., 2016) has been extended to charged targets. Furthermore, we show that this approach allows for calculation of cross sections at zero channel energy. For neutral targets this means the electron scattering length may be obtained from a single calculation with zero incident energy. For charged targets the non-zero excitation cross sections at thresholds can also be calculated by simply setting the incident energy to the exact threshold value. These features are demonstrated by considering electron scattering on H and He+.

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