Total cross sections for positron scattering from argon atoms at intermediate energies.

Abstract

A model complex potential is employed to obtain integrated elastic cross sections, absorption cross sections, and total cross sections for positron scattering from argon atoms in 100--800 eV energy range. The total cross sections are found to be in good agreement with the experimental data for E\ensuremath{\ge}300 eV and lower than the corresponding electron cross sections over the whole energy range.