Calculation of photoionisation cross sections, resonance structure and angular distribution for Mn I by many-body perturbation theory

Abstract

Photoionisation cross sections for the 4s, 3d and 3p subshells and the 3d angular distribution have been calculated for atomic Mn by many-body perturbation theory. Spin-orbit effects in the 3p to 3d resonance and resonances due to 3p to ns,nd (n>3) excitations have been computed. Comparison is made with recent experiments.