Energies and widths of the 2s2p⁶nl Auger states in Na⁺

Positions and widths of the Auger states 2s2p⁶ns, np, nd (n=3-7) of Na⁺ are calculated in the Hartree-Fock approximation with additional inclusion of the inner-core and core-polarization correlations. A detailed analysis of various correlation corrections for excitation energies and partial widths is given. The results obtained agree well with the experimental data and the main conclusion about the key influence of the inner-core correlation on the partial widths is supported by analysing the relative intensities of Auger lines observed.