The 4s- and 4p- XPS spectra of Xe gas, XeF2molecule and XeF4molecule are calculated by an ab-initio atomic many-body theory. The 4s-peak and the prominent '4p'-peak are predicted well by the present theory. In XeF2and XeF4the spectral lines observed below the 4d-double ionization threshold are the 4d-24f multiplet states strongly perturbed by the interaction with the initial 4p1/2-hole state. They are very similar to the spectral lines which emerge with an increase in atomic number (e.g. Ba). © 2003 Elsevier Science B.V. All rights reserved.
Ohno, M. (2003). The 4s- and 4p- XPS spectra of Xe, XeF2and XeF4. Journal of Electron Spectroscopy and Related Phenomena, 130(1–3), 19–24. https://doi.org/10.1016/S0368-2048(03)00019-7