Theory of Auger energies in free atoms: Application to the alkaline earths

We calculate, including correlation, relativistic, and radiative effects, the Auger energies associated with the KL₂,3L₂,3(³P,¹ D₂,¹{S}₀$) transitions in Mg to be, respectively, 1171.25, 1166.9, 1161.9 eV. The experimental values are, respectively, 1171.0 (1170.85), 1167.1 (1167.0), and 1161.9 (1161.75) eV. For the ${KL}₂$,3${L}₂$,3${(}¹D₂) transition in Ca, we obtain 3275.8 eV and for the Be KL₁{L}₁(¹{S}₀$) transition, 96.21 eV, in good agreement with the experimental value of 96.11 eV. Predictions are also made for O and F KLL Auger energies.