Generating phase shifts from pseudostate energy shifts

James Mitroy, Michael Bromley

    Research output: Contribution to journalArticlepeer-review


    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
    Issue number17
    Publication statusPublished - 2007


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