Interference, post-collision interaction and exchange effects in angular distribution patterns of resonant photo double-ionization in neon for equal electron energies

Abstract

Angle-resolved patterns of the fivefold-differential cross section in neon are calculated ab initio for the case of resonant photo double-ionization under the condition of equal energies of the ejected electrons. The patterns reveal the important role of direct and indirect processes as well as post-collision interaction (PCI), interference and exchange effects. Comparison with available experimental data shows that some of these effects are readily confirmed, but the angular range with dramatic PCI effects still awaits experimental verification.