Theory of Atomic Structure Including Electron Correlation. III. Calculations of Multiplet Oscillator Strengths and Comparisons with Experiments for CII, NI, NII, NIII, OII, OIII, OIV, FII, NeII, and NaIII

Details Theory of Atomic Structure Including Electron Correlation. III. Calculations of Multiplet Oscillator Strengths and Comparisons with Experiments for CII, NI, NII, NIII, OII, OIII, OIV, FII, NeII, and NaIII Theory of Atomic Structure Including Electron Correlation. III. Calculations of Multiplet Oscillator Strengths and Comparisons with Experiments for CII, NI, NII, NIII, OII, OIII, OIV, FII, NeII, and NaIII

Jul 1969

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1969phrv..183...56w&link_type=abstract

Physical Review, vol. 183, Issue 1, pp. 56-68

Physics

66

Scientific paper

The theory of atomic structure developed in the two preceding papers which treats electron correlation accurately in excited as well as ground states is applied to the evaluation of multiplet absorption oscillator strengths for a number of transitions of the type of 1s22s22pn-->1s22s2pn+1 in CII, NI, NII, NIII, OII, OIII, OIV, FII, NeII, and NaIII. Those types of correlation effects necessary to obtain accurate oscillator strengths are clearly indicated by the theory. The usual improvement on the Restricted Hartree-Fock (RHF) calculation, the mixing of those few configurations nearly degenerate with the RHF configuration, is by itself incapable of bringing the oscillator strengths into agreement with experimental values. All the nondynamical correlation effects given in the first paper of this series must be considered. Very detailed wave functions which contain those important nondynamical correlations were obtained in that paper and here are used to compute oscillator strengths. The results are compared extensively with recent experiments. The calculated values are usually in very good agreement with experimental data. Many more transitions for which no experimental results are yet available are also tabulated here.

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