Xe5s,5pcorrelation satellites in the region of strong interchannel interactions, 28—75 eV

Abstract

The Xe $5s$, $5p$ photoelectron satellite spectrum has been studied in the photon-energy range from 28 to 75 eV with the aid of synchrotron radiation. This range includes the Xe $5s$ Cooper minimum, and the cross sections and angular distribution data demonstrate the importance of the strong two-electron channels in the region where the $5s$ cross section is small. Although the behavior of the satellites was not recorded over the $4d$ maximum, the data near 75 eV show an enhancement in the cross section in that region. The data underline the need of including the two-electron channels explicitly in the theory over a wide photon-energy range.