CONFIGURATION MIXING AND OSCILLATOR STRENGTHS FOR SOME 2-ELECTRON SPECTRA (CA I BA I AND OTHERS)

Two-electron spectra are treated with configuration mixing. A set of basis functions is used, which described the inner of the two-electrons by eigenfunctions in a semiempirical core potential. (4) The outer electron is described by eigenfunctions in the core potential shielded by the inner electron. Eigenfunctions for up to seven terms of a series were calculated. The contributions of the different channels to the eigenfunctions have been determined. (A channel is defined by the one-electron quantum numbers of the inner electron and the angular momentum of the outer electron.) Calculations of oscillator strengths have been carried out for C III, N IV, O V, Mg I, Al II, Si III, Ca I, and Ba I. The results are quoted for Ca and Ba. © 1969.