Michel Godefroid, G. Van Meulebeke, Per Jönsson, Charlotte Froese Fischer,
Tópico(s): Spectroscopy and Quantum Chemical Studies
1997 - Springer Nature | Zeitschrift für Physik D Atoms Molecules and Clusters
Dage Sundholm, Jeppe Olsen, Michel Godefroid, G. Van Meulebeke,
The excitation energies of the 3d4p $^{3}$${\mathit{F}}^{\mathit{o}}$, 4s4f $^{3}$${\mathit{F}}^{\mathit{o}}$, 3d4p $^{1}$${\mathit{F}}^{\mathit{o}}$, and 4s4f $^{1}$${\mathit{F}}^{\mathit{o}}$ states relative to the ground state 4${\mathit{s}}^{2}$ $^{1}$S and the ground-state ionization potential of neutral calcium (Ca i) are calculated using a finite-element multiconfiguration Hartree-Fock method, through the use of a systematic sequence of active spaces of increasing size. It is confirmed, through large-scale ...
Tópico(s): X-ray Spectroscopy and Fluorescence Analysis
1993 - American Physical Society | Physical Review A