All-order relativistic many-body theory of low-energy electron-atom scattering

Yong Jun Cheng, Li Yan Tang, James Mitroy, Marianna S Safronova

    Research output: Contribution to journalArticle

    Abstract

    A generalization of the box-variational method is developed to describe particle scattering with the Dirac equation. The method is applied to extract phase shifts from all-order single + double relativistic many-body perturbation theory calculations of the electron-helium, electron-neon, and electron-krypton systems. Comparisons with experimental elastic and momentum transfer cross sections are made. Agreement at the 1% to 2% level is achieved for helium and neon. The scattering length for krypton is 4% smaller in magnitude than experimental estimates derived from swarm experiments.
    Original languageEnglish
    Pages (from-to)1-10
    Number of pages10
    JournalPhysical Review A - Atomic, Molecular, and Optical Physics
    Volume89
    Issue number1
    DOIs
    Publication statusPublished - 8 Jan 2014

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