Convergent Close-Coupling Method: A “Complete Scattering Theory”?

Abstract
We demonstrate that a single convergent close-coupling calculation of 100 eV electron impact on the ground state of helium is able to provide accurate elastic and inelastic ( n3 levels) differential cross sections, as well as singly, doubly, and triply differential ionization cross sections. This is a most promising step towards the development of a complete electron-atom scattering theory.