Multiconfiguration calculations of electronic isotope shift factors in Al I

作者：Filippin Livio^*; Beerwerth Randolf^*; Ekman Jorgen^*; Fritzsche Stephan^*; Godefroid Michel^*; Jonsson Per^*

来源：Physical Review A, 2016, 94(6): 062508.

DOI：10.1103/PhysRevA.94.062508

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 levels of 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 to estimate theoretical error bars of the isotope shift factors.

• 出版日期2016-12-19