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arXiv · 1610.09233

Multiconfiguration calculations of electronic isotope shift factors in Al I

Livio Filippin·Randolf Beerwerth·Jörgen Ekman·Stephan Fritzsche·Michel Godefroid·Per Jönsson
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Abstract

The present work reports results from systematic multiconfiguration Dirac-Hartree-Fock calculations of electronic isotope shift factors for a set of transitions between low-lying states in neutral aluminium. These electronic quantities together with observed isotope shifts between different pairs of isotopes provide the changes in mean-square charge radii of the atomic nuclei. Two computational approaches are adopted for the estimation of the mass- and field shift factors. Within these approaches, different models for electron correlation are explored in a systematic way to determine a reliable computational strategy and estimate theoretical error bars of the isotope shift factors.

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Livio Filippin, Randolf Beerwerth, Jörgen Ekman, Stephan Fritzsche, Michel Godefroid, Per Jönsson. 2016-11-25. Multiconfiguration calculations of electronic isotope shift factors in Al I. https://doi.org/10.1103/physreva.94.062508

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