Isotope shift calculations of Li-like neutron-rich and neutron-deficient Mg isotopes

Abstract

The isotope shifts of the [Formula: see text]–[Formula: see text] transitions for the Li-like neutron-rich and neutron-deficient [Formula: see text] isotopes are calculated using the multi-configuration Dirac–Hartree–Fock (MCDHF) method and the relativistic configuration interaction approach. The results provided herein can be employed for the consistency check with the nuclear root-mean-square (rms) nuclear charge radii of the short-lived magnesium isotopes from the experimental isotope shifts using the corresponding transitions. The methods used here could also be applied to other few-electron Li-like systems and the analogous isotope shift results could be obtained.