Convergent close-coupling approach to positron scattering on He+

  • Charlie M. Rawlins
  • Alisher S. Kadyrov
  • Igor Bray
Regular Article
  • 22 Downloads
Part of the following topical collections:
  1. Topical Issue: Low Energy Positron and Electron Interactions

Abstract

A close-coupling method is used to generate electron-loss and total scattering cross sections for the first three partial waves with both a single-centre and two-centre expansion of the scattering wave function for positron scattering on He+. The two expansions are consistent with each other above the ionisation threshold verifying newly-developed positronium-formation matrix elements. Below the positronium-formation threshold both the single- and two-centre results agree with the elastic-scattering cross sections generated from the phase shifts reported in previous calculations.

Graphical abstract

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Copyright information

© EDP Sciences, SIF, Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Charlie M. Rawlins
    • 1
  • Alisher S. Kadyrov
    • 1
  • Igor Bray
    • 1
  1. 1.Curtin Institute for Computation and Department of Physics, Astronomy and Medical Radiation Sciences, Curtin UniversityPerthAustralia

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