In this paper, on the 4th page (and throughout), they talk about studying electron-helium scattering in the "static-exchange approximation". I have scoured the literature and have not been able to figure out what this. There this power point which gives some really brief description but outside of that I can't figure out what it is. Apparently it is sometimes called the "continuum Hartree-Fock approximation". It seems like it gives a model of the potential that accounts for exchange effects in electron-atomic (or molecular) scattering. Can anyone give a self-contained explanation for this approximation?

  • $\begingroup$ Does this help? $\endgroup$ – John Rennie Aug 5 '19 at 8:39
  • $\begingroup$ Minor comment to the post (v3): Please consider to mention explicitly author, title, etc. of link, so it is possible to reconstruct link in case of link rot. $\endgroup$ – Qmechanic Aug 6 '19 at 13:02

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