High-resolution measurements of the 3s satellite spectrum of argon between 77 and 120 eV photon energy

Abstract

A high-resolution 3s-satellite spectrum of Ar is presented, obtained at five energies between 77 and 120 eV photon energy at the positron-electron storage ring BESSY. The results are in disagreement with recent measurements by Brion et al. obtained at lower resolution but confirm earlier calculations by Smid and Hansen. This means that disagreements between photoelectron and (e,2e) experiments persist for Ar.