Single, double, and triple Auger decay of the Xe4pcore-hole states

Abstract

Auger decay of ${\mathrm{Xe}}^{+}$ states arising from $4p$ ionization has been studied with a very efficient multielectron coincidence method. Coster-Kronig decay from ${\mathrm{Xe}}^{+}$ $4{p}^{\ensuremath{-}1}$ and the subsequent decay into ${\mathrm{Xe}}^{3+}$ states with three valence holes are identified. Formation of ${\mathrm{Xe}}^{4+}$ is also observed as quadruple coincidences between a $4p$ photoelectron and three Auger electrons. The relative probabilities of individual multi-ionization processes are determined from the coincidence yields.