Generating phase shifts from pseudostate energy shifts

James Mitroy, Michael Bromley

    Research output: Contribution to journalArticleResearchpeer-review

    Abstract

    A simple way to generate low energy phase shifts for elastic scattering using bound-state calculations is postulated, validated, and applied to the problem of e+-Mg scattering. The essence of the method is to use the energy shift between a small reference calculation and the largest possible calculation of the lowest energy pseudostate to tune a semiempirical optical potential. The =1 partial wave for e+-Mg scattering is predicted to have a shape resonance at an energy of about 0.13 eV. The value of Zeff at the center of the resonance is about 1500. � 2007 The American Physical Society.
    Original languageEnglish
    Pages (from-to)173001-173005
    Number of pages5
    JournalPhysical Review Letters
    Volume98
    Issue number17
    Publication statusPublished - 2007

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    Mitroy, J., & Bromley, M. (2007). Generating phase shifts from pseudostate energy shifts. Physical Review Letters, 98(17), 173001-173005.
    Mitroy, James ; Bromley, Michael. / Generating phase shifts from pseudostate energy shifts. In: Physical Review Letters. 2007 ; Vol. 98, No. 17. pp. 173001-173005.
    @article{aa0585e8d08646bc8bef38648095e6e7,
    title = "Generating phase shifts from pseudostate energy shifts",
    abstract = "A simple way to generate low energy phase shifts for elastic scattering using bound-state calculations is postulated, validated, and applied to the problem of e+-Mg scattering. The essence of the method is to use the energy shift between a small reference calculation and the largest possible calculation of the lowest energy pseudostate to tune a semiempirical optical potential. The =1 partial wave for e+-Mg scattering is predicted to have a shape resonance at an energy of about 0.13 eV. The value of Zeff at the center of the resonance is about 1500. � 2007 The American Physical Society.",
    keywords = "Elastic scattering, Electromagnetic wave scattering, Magnesium, Optical properties, Phase shift, Bound state calculations, Pseudostate energy shifts, Shape resonance, Electron energy levels",
    author = "James Mitroy and Michael Bromley",
    year = "2007",
    language = "English",
    volume = "98",
    pages = "173001--173005",
    journal = "Physical Review Letters",
    issn = "0031-9007",
    publisher = "American Physical Society",
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    Mitroy, J & Bromley, M 2007, 'Generating phase shifts from pseudostate energy shifts', Physical Review Letters, vol. 98, no. 17, pp. 173001-173005.

    Generating phase shifts from pseudostate energy shifts. / Mitroy, James; Bromley, Michael.

    In: Physical Review Letters, Vol. 98, No. 17, 2007, p. 173001-173005.

    Research output: Contribution to journalArticleResearchpeer-review

    TY - JOUR

    T1 - Generating phase shifts from pseudostate energy shifts

    AU - Mitroy, James

    AU - Bromley, Michael

    PY - 2007

    Y1 - 2007

    N2 - A simple way to generate low energy phase shifts for elastic scattering using bound-state calculations is postulated, validated, and applied to the problem of e+-Mg scattering. The essence of the method is to use the energy shift between a small reference calculation and the largest possible calculation of the lowest energy pseudostate to tune a semiempirical optical potential. The =1 partial wave for e+-Mg scattering is predicted to have a shape resonance at an energy of about 0.13 eV. The value of Zeff at the center of the resonance is about 1500. � 2007 The American Physical Society.

    AB - A simple way to generate low energy phase shifts for elastic scattering using bound-state calculations is postulated, validated, and applied to the problem of e+-Mg scattering. The essence of the method is to use the energy shift between a small reference calculation and the largest possible calculation of the lowest energy pseudostate to tune a semiempirical optical potential. The =1 partial wave for e+-Mg scattering is predicted to have a shape resonance at an energy of about 0.13 eV. The value of Zeff at the center of the resonance is about 1500. � 2007 The American Physical Society.

    KW - Elastic scattering

    KW - Electromagnetic wave scattering

    KW - Magnesium

    KW - Optical properties

    KW - Phase shift

    KW - Bound state calculations

    KW - Pseudostate energy shifts

    KW - Shape resonance

    KW - Electron energy levels

    M3 - Article

    VL - 98

    SP - 173001

    EP - 173005

    JO - Physical Review Letters

    JF - Physical Review Letters

    SN - 0031-9007

    IS - 17

    ER -