MCDHF and RCI calculations of energy levels, lifetimes and transition rates for 3l3l’, 3l4l’, and 3s5l states in Ca IX – As XXII and Kr XXV

Gustafsson, S.; Jönsson, P.; Froese Fischer, C.; Grant, I. P.

Multiconfiguration Dirac-Hartree-Fock (MCDHF) calculations and relativistic configuration interaction (RCI) calculations were performed for states of the 3l3l’, 3l4l’ and 3s5l configurations in the Mg-like ions Ca IX – As XXII and Kr XXV. Valence and core-valence electron correlation effects are accounted for through large configuration state function expansions. Calculated excitation energies are in very good agreement with observations for the lowest levels. For higher lying levels observations are often missing and present energies aid line identification in spectra. Lifetimes and transition data are given for all ions. There is an excellent agreement for both lifetimes and transition data with recent multiconfiguration Hartree-Fock Breit Pauli calculations.

Article ->…597A..76G

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