Explicit demonstration of the convergence of the close-coupling method for a Coulomb three-body problem

Bray, I. and Stelbovics, A.T. (1992) Explicit demonstration of the convergence of the close-coupling method for a Coulomb three-body problem. Physical Review Letters, 69 (1). pp. 53-56.

Abstract

Convergence as a function of the number of states is studied and demonstrated for the Poet-Temkin model of electron-hydrogen scattering. In this Coulomb three-body problem only the l=0 partial waves are treated. By taking as many as thirty target states, obtained by diagonalizing the target Hamiltonian in a Laguerre basis, complete agreement with the smooth results of Poet is obtained at all energies. We show that the often-encountered pseudoresonance features in the cross sections are simply an indication of an inadequate target state representation.

Item Type:	Journal Article
Murdoch Affiliation(s):	Centre for Atomic, Molecular and Surface Physics
Publisher:	American Physical Society
Copyright:	© 1992 The American Physical Society.
URI:	http://researchrepository.murdoch.edu.au/id/eprint/35782

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