Effects of electron correlation on the level widths, the photoelecton, Auger electron and ion-yield spectra above the 4d threshold in Ba

Abstract

Electron correlation has been studied in the singly ionized 5p-1, 5s-1 and 4d-1 states and the double ionized (5s, 5p, valence)-2 states of Ba by carrying out extensive configuration interaction Hartree-Fock calculations including the mixing of configurations with outermost valence electrons (nl = 6s,5d,6p,4f, ... ). The results of calculations have been compared with existing experimental photoelectron, ion-yield, electron-ion coincidence, and Auger electron spectra.