173 citations · 876 across the 42 of their papers we have counts for
42 papers
Signs in isotope shifts: a perennial headache
Michel Godefroid, Jörgen Ekman, Per Jönsson
Signs of the different contributions to the isotope shift of an atomic line are discussed in details to clarify some confusing differences between the electronic parameters calcula…
Relativistic variational methods and the Virial Theorem
Charlotte Froese Fischer, Michel Godefroid
In the case of the one-electron Dirac equation with a point nucleus the Virial Theorem (VT) states that the ratio of the kinetic energy to potential energy is exactly , a ratio…
Weak Correlation and Strong Relativistic Effects on the Hyperfine Interaction in Fluorine
Fatima Zahra Boualili, Messaoud Nemouchi, Michel Godefroid +1
In previous work devoted to {\it ab initio} calculations of hyperfine structure constants in nitrogen and fluorine atoms, we observed sizeable relativistic effects, a priori unexpe…
Benchmarking calculations with spectroscopic accuracy of level energies and wavelengths in W LVII - W LXII tungsten ions
Chun Yu Zhang, Kai Wang, Ran Si +5
Atomic properties of states of the W W ions are systematically investigated through two state-of-the-art methods, namely, the second-order many-body pertu…
Ab initio MCDHF calculations of the In and Tl electron affinities and their isotope shifts
Ran Si, Sacha Schiffmann, Kai Wang +2
We report multiconfiguration Dirac-Hartree-Fock and relativistic configuration interaction calculations on the Thallium (Tl) electron affinity, as well as on the excited energy lev…
High-resolution laser spectroscopy of Al
H. Heylen, C. S. Devlin, W. Gins +24
Hyperfine spectra of Al () have been measured at the ISOLDE-CERN facility via collinear laser spectroscopy using the $3s^23p\ ^2\text{P}^\text{o} _{3/2}\righta…