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    J-matrix calculation of electron-helium S-wave scattering

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    Authors
    Konovalov, D.
    Fursa, Dmitry
    Bray, Igor
    Date
    2011
    Type
    Journal Article
    
    Metadata
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    Citation
    Konovalov, D. A. and Fursa, D. V. and Bray, I. 2011. J-matrix calculation of electron-helium S-wave scattering. Physical Review A. 84 (3): pp. 032707-1 - 032707-10.
    Source Title
    Physical Review A
    DOI
    10.1103/PhysRevA.84.032707
    ISSN
    1050-2947
    School
    Department of Imaging and Applied Physics
    URI
    http://hdl.handle.net/20.500.11937/42631
    Collection
    • Curtin Research Publications
    Abstract

    The J-matrix approach to electron-atom scattering is revised by merging it with the Fano's multiconfiguration interaction matrix elements [U. Fano Phys. Rev. 140 A67 (1965)]. The revised method is then applied to the S-wave model of the e-He scattering problem demonstrating remarkable computational efficiency and accuracy. In particular, the method is in complete agreement with the convergent-close-coupling elastic, 21,3S excitation and single ionization cross sections for impact energies in the range 0.1–1000 eV. The S-wave resonance structures in the elastic and 21,3S excitation cross sections are highlighted.

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