Energy-dependent polarization potential, dispersion-relation absorption potential, and matrix effective potential for electron-neon scattering at 10 100 eV

We report model-potential calculations of the elastic and absorption cross sections for e-Ne scattering at 10, 30, 50, and 100 eV. Altogether nine different model potentials are studied; these include the variational matrix-effective-potential method, an absorption potential calculated ab initio from a real energy-dependent polarization potential and a dispersion relation, and two different phenomenological absorption potentials. We get good agreement with experimental results by several methods at 30 100 eV and by one method at 10 eV. The tests of the various methods establish useful trends and expectations for future work.