Coupled-state calculations of proton-hydrogen-atom scattering with a Sturmian expansion

Abstract

Cross sections for proton-hydrogen-atom scattering have been calculated for protons incident in the energy range 15-200 keV. The impact-parameter Schr\"odinger equation was solved approximately with an expansion in Sturmian functions; the expansion contained a total of six $s$-state and six $p$-state functions centered about each proton. Results are presented and discussed for excitation to the $n=2$ level, for charge transfer to the ground state and the $n=2$ level, and for ionization.