Optical potential study of positron–hydrogen-atom scattering at intermediate energies

Abstract

In this work, we will provide the full details of the coupled-channels-optical method as applied to study positron scattering from atomic hydrogen at intermediate energies. An optical potential method for the continuum has been implemented within the close-coupling framework that includes both the positron-hydrogen and positronium-proton channels. Elastic, excitation, ionization, positronium formation, and total cross sections are reported and compared to other available theoretical and experimental data.