Multiconfiguration Dirac-Hartree-Fock energy levels and transition probabilities for W xxxviii

Energies, lifetimes, and wave-function compositions have been computed for all levels of $4p^{6}4d,4p^{6}4f,$ and $4p^{5}4d^2$ using single and double excitations from a multireference set (SD-MR) to generate expansions for the multiconfiguration Dirac-Hartree-Fock (MCDHF) approximation. An extended version of the general relativistic atomic structure package, grasp2K, was used to deal with configuration state functions with as many as six open shells and with configurations containing as many as three $f$ electrons. $E$1, $E$2, $M$1 transition probabilities are reported for transitions between the levels as supplemental material. Results are compared with other theory and with experiment, when available.

Figure 1

Comparison of quasirelativistic (QR) [9], parametric potential (PP) [3] energy levels with values derived from observation [6, 19] as a function of the energy. The energy position of $4p^{6}4d{}^2{D}_{5/2}$ has been moved to a position on the graph.