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    Threshold behavior of positronium formation in positron-alkali-metal scattering

    192807_192807.pdf (118.3Kb)
    Access Status
    Open access
    Authors
    Lugovskoy, Andrey
    Utamuratov, Ravshanbek
    Kadyrov, Alisher
    Stelbovics, Andris
    Bray, Igor
    Date
    2013
    Type
    Journal Article
    
    Metadata
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    Citation
    Lugovskoy, A.V. and Utamuratov, R. and Kadyrov, A.S. and Stelbovics, A.T. and Bray, I. 2013. Threshold behavior of positronium formation in positron-alkali-metal scattering. Physical Review A. 87 (4): pp. 042708 (4).
    Source Title
    Physical Review A
    DOI
    10.1103/PhysRevA.87.042708
    ISSN
    1050-2947
    Remarks

    Copyright © 2013 by the American Physical Society

    URI
    http://hdl.handle.net/20.500.11937/20445
    Collection
    • Curtin Research Publications
    Abstract

    We consider positron scattering on the alkali-metal atoms of Li, Na, and K at very low energies, where only the elastic scattering and positronium formation in the ground state are the two open channels. Utilizing the recently developed two-center convergent close-coupling method [ Lugovskoy, Kadyrov, Bray and Stelbovics, Phys. Rev. A 82 062708 (2010)] we investigate the behavior of the cross sections as the impact energy goes to zero and demonstrate their convergence. The study sets quantitative benchmarks for any rigorous theoretical treatment of the collision problems.

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