Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    J-matrix calculation of electron-helium S-wave scattering. II. Single ionization and single excitation

    Access Status
    Fulltext not available
    Authors
    Konovalov, D
    Fursa, D
    Bray, Igor
    Date
    2012
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Konovalov, Dmitry and Fursa, Dmitry and Bray, Igor. 2012. J-matrix calculation of electron-helium S-wave scattering. II. Single ionization and single excitation. Physical Review A 86: pp. 052704-1-052704-7.
    Source Title
    Physical Review A
    DOI
    10.1103/PhysRevA.86.052704
    ISSN
    1050-2947
    URI
    http://hdl.handle.net/20.500.11937/24394
    Collection
    • Curtin Research Publications
    Abstract

    In the preceding paper [Konovalov et al., Phys. Rev. A 84, 032707 (2011)] we used the J -matrix (JM) method to solve the S-wave e-He scattering problem within the frozen-core model of helium. In the present work we go beyond the frozen-core model and adopt a general configuration-interaction description of helium (within the S-wave model). As a result a more accurate description of the helium target states is achieved that allowed us to obtain highly accurate numerical solutions of the e-He scattering problem for the elastic, 21,3S, 31,3S excitation and total ionization cross sections. The JM results are confirmed by the corresponding convergent-close-coupling (CCC) calculations. At energies above the ionization threshold some minor pseudoresonances are still evident in both the JM and CCC results despite the large bases used. The pseudoresonances are nearly completely eliminated by averaging a number of JM calculations creating a challenging benchmark for any current or future ab initio electron-atom scattering methods.

    Related items

    Showing items related by title, author, creator and subject.

    • Convergent close-coupling approach to positron-helium collisions
      Utamuratov, Ravshanbek (2010)
      This thesis presents the theoretical studies of positron scattering on the helium atom using two-center Convergent Close-Coupling (CCC) theory.The thesis organized in the following way: In the Introduction (Chapter I) the ...
    • Impact-parameter convergent close-coupling approach to antiproton-atom collisions
      Abdurakhmanov, Ilkhom (2011)
      This thesis is devoted to extension of the convergent close-coupling (CCC) method to heavy projectiles and its application to the theoretical studies of antiproton scattering on the hydrogen and helium targets.In the ...
    • Convergent close-coupling calculations of helium single ionization by antiproton impact
      Abdurakhmanov, Ilkhom; Kadyrov, Alisher; Fursa, Dmitry; Bray, Igor; Stelbovics, Andris (2011)
      We apply the fully quantum-mechanical convergent close-coupling method to the calculation of antiproton scattering on the ground state of helium. The helium target is treated as a three-body Coulomb system using frozen-core ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.