Mass- and field-shift isotope parameters for the $2s-2p$ resonance doublet of lithium-like ions

Abstract

It was recently shown that dielectronic recombination measurements can be used for accurately inferring changes in the nuclear mean-square charge radii of highly-charged lithium-like neodymium [Brandau et al., Phys. Rev. Lett. 100 073201 (2008)]. To make use of this method to derive information about the nuclear charge distribution for other elements and isotopes, accurate electronic isotope shift parameters are required. In this work, we calculate and discuss the relativistic mass- and field-shift factors for the two $2s^2{S}_{1/2}-2p^2{P}_{1/2,3/2}^o$ transitions along the lithium isoelectronic sequence. Based on the multiconfiguration Dirac-Hartree-Fock method, the electron correlation and the Breit interaction are taken into account systematically. The analysis of the isotope shifts for these two transitions along the isoelectronic sequence demonstrates the importance and competition between the mass shifts and the field shifts.

Accepted by Phys. Rev. A

References in corpus (5)

• Nuclear Charge Radii of Be-7,9,10 and the one-neutron halo nucleus Be-11
• Isotope shift in the dielectronic recombination of three-electron ^{A}Nd^{57+}
• Relativistic, QED, and finite nuclear mass corrections for low-lying states of Li and Be${}^{+}$
• Nuclear deformation effect on the binding energies in heavy ions
• Relativistic recoil, electron-correlation, and QED effects on the 2p_j-2s transition energies in Li-like ions

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