Optical-Model Analysis of Low-Energy Electron-Hydrogen Scattering

Abstract
The electron-hydrogen scattering problem is reduced to an equivalent one-body problem by the use of an optical-model potential. Two effects are examined quantitatively: the influence of the Pauli principle and the elastic scattering in the triplet state. For a long-range optical potential, the effect of the Pauli principle is small; however, for a short-range optical potential, the Pauli principle changes the zero-energy cross section by an order of magnitude.