
%0 Journal Article
%A McCarthy, IE 
%A Stelbovics, AT 
%T Intermediate-energy Electron Scattering by Atomic Hydrogen
%J Australian Journal of Physics
%D 1982/10/01
%V 35
%N 5
%P 543-558
%K 
%R https://doi.org/10.1071/PH820543
%U https://www.publish.csiro.au/paper/PH820543 
%X Both elastic and inelastic scattering are studied in the framework of the close-coupling equations. The models are formulated in terms of integral equations for T matrices in momentum space. This representation enables one to study the effects of approximations to the multiple-scattering series in a direct manner. For elastic scattering we can thus establish that the approximations made in using a second-order optical-potential formalism give rise to at most a 10% error in the reaction mechanism at 50 eV and considerably less at higher energies. Inelastic Is-2s and Is-2p scattering is analysed in terms of a three-state close-coupling model and approximations to it. 
