Benchmarking calculations with spectroscopic accuracy of excitation energies and wavelengths in sulfur-like tungsten

Abstract

Atomic properties of S-like W are evaluated through a state-of-the-art method, namely, the multi-configuration Dirac-Hartree-Fock (MCDHF) method combined with the relativistic configuration interaction (RCI) approach. The level energies, wavelengths, and transition parameters involving the 88 lowest levels of W${}^{+58}$ (W LIX) are calculated. We discuss in detail the relative importance of the valence- and core-valence electron correlation effects, the Breit interaction, the higher order retardation correction beyond the Breit interaction through the transverse photon interaction, and the quantum electrodynamical (QED) corrections. The present level energies are highly accurate, with uncertainties close to what can be achieved from spectroscopy. As such, they provide benchmark tests for other theoretical calculations of S-like W and should assist the spectroscopists in their assignment/identification of observed lines in complex spectra.

References in corpus (6)

• Model operator approach to the Lamb shift calculations in relativistic many-electron atoms
• EUV spectra of highly-charged ions W${}^{54+}$-W${}^{63+}$ relevant to ITER diagnostics
• QED tests with highly-charged ions
• QED and relativistic corrections in superheavy elements
• QED self-energy contribution to highly-excited atomic states
• Relativistic all-order many-body calculation of energies, wavelengths, and $M1$ and $E2$ transition rates for the $3d^n$ configurations in tungsten ions

Cited by in corpus (3)

• Benchmarking calculations with spectroscopic accuracy of level energies and wavelengths in W LVII - W LXII tungsten ions
• Isotope shifts for ${}^1{S}_0-{}^3{P}_{0,1}^o$ Yb lines from multi-configuration Dirac-Hartree-Fock calculations
• $\text{Ab initio}$ electronic factors of the $A$ and $B$ hyperfine structure constants for the $5s^{2}5p6s{}^{1,3}{P}_1^{\mathrm{o}}$ states in Sn I