Skyrme-type nuclear interaction as a tool for calculating the finite nuclear size correction to atomic energy levels and the bound-electron $g$ factor

Abstract

A state-of-the-art approach for calculating the finite nuclear size correction to atomic energy levels and the bound-electron $g$ factor is introduced and demonstrated for a series of highly charged hydrogen-like ions. Firstly, self-consistent mean-field calculations based on the Skyrme-type nuclear interaction are employed in order to produce a realistic nuclear proton distribution. In the second step, the obtained nuclear charge density is used to construct the potential of an extended nucleus, and the Dirac equation is solved numerically. The ambiguity in the choice of a Skyrme parametrization is supressed by fine-tuning of only one parameter of the Skyrme force in order to accurately reproduce the experimental values of nuclear radii in each particular case. The homogeneously charged sphere approximation, the two-parameter Fermi distribution and experimental nuclear charge distributions are used for comparison with our approach, and the uncertainties of the presented calculations are estimated. In addition, suppression of the finite nuclear size effect for the specific differences of $g$ factors is demonstrated.

arXiv comment8 pages, 1 figure, 4 tables

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Cited by in corpus (8)

• Testing Standard Model extensions with few-electron ions
• Finite-nuclear-size effect in hydrogen-like ions with relativistic nuclear structure
• QED calculations of the nuclear recoil effect in muonic atoms
• Hadronic vacuum polarization correction to atomic energy levels
• QED calculations of the $2p$-$2s$ transition energies in Li-like ions
• High-precision minmax solution of the two-center Dirac equation
• Finite-nuclear-size effect for hydrogenlike ions under high external pressure
• Evidence against nuclear polarization as source of fine-structure anomalies in muonic atoms