Total cross sections for electron excitation transitions between the 1¹S, 2³S, 2¹S, 2³P and 2¹P states of atomic helium

Abstract

The five-state R-matrix calculations of Berrington et al. (1975) on the excitation of helium by electrons have been revised and extended to higher electron impact energies. Inelastic scattering cross sections are presented for all transitions between the 11S, 23S, 21S, 23P and 21P states of helium, and elastic cross sections are presented for the n=2 states.