EFFECTS OF RELAXATION AND AUGER DECAY ON PHOTOIONIZATION CALCULATIONSOF ARGON

Photoionization cross sections, branching ratios, and photoelectron an gular-distribution asymmetry parameters have been calculated for all A r (Z = 18) subshells using the relativistic random-phase approximation , the relativistic random-phase approximation modified to include rela xation effects, and the relativistic random-phase approximation modifi ed to include relaxation effects and Auger decay. Comparisons are made between the various theoretical results and experimental data. The im portance of relaxation and Auger decay is seen to increase for deep in ner subshells, particularly 1s and 2s.