Theoretical analysis of the Auger spectra of CH4

Abstract

Self-consistent-field wave functions and energies have been used to obtain an interpretation of the $\mathrm{KLL}$ Auger spectra of C${\mathrm{H}}_4$. The computed Auger energies are in good agreement with observed values. The multiplet structure and splittings of the final states of C${\mathrm{H}}_4^{+2\mathrm{}}$ are shown to play a key role in determining the spectra. For the first time, symmetry assignments have been made for the final states of the Auger transition peaks in a molecule.