Elsevier

Physics Letters A

Volume 143, Issue 8, 29 January 1990, Pages 384-386
Physics Letters A

Relativistic many-body calculations of oscillator strengths for sodium-like ions

https://doi.org/10.1016/0375-9601(90)90377-ZGet rights and content

Abstract

Relativistic many-body perturbation theory is applied to calculate oscillator strengths for the components of the resonant 3p-3s doublets in sodium-like ions with nuclear charges ranging from Z = 11−29. The present calculations of the multiplet averaged oscillator strengths are in excellent agreement with previous nonrelativistic MCHF calculations. Discrepancies of order ten percent between measured oscillator strengths and ab initio Dirac-Hartree-Fock calculations for highly-ionized members of the sequence are resolved, but a one-percent discrepancy between theory and experiment remains for neutral sodium.

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