Energy levels and transition probabilities in the ground-state configuration of sulfur-like ions
1989; Elsevier BV; Volume: 41; Issue: 2 Linguagem: Inglês
10.1016/0092-640x(89)90022-3
ISSN1090-2090
Autores Tópico(s)Cold Atom Physics and Bose-Einstein Condensates
ResumoTheoretical level values have been calculated for the energy levels of the 3s23p4 ground-state configuration of all sulfur-like ions of atomic number Z = 16–92. Transition probabilities have been obtained for the magnetic dipole (M1) and electric quadrupole (E2) transitions within this configuration. The calculations were by means of a multiconfiguration-Dirac-Fock technique which included perturbatively the Breit interaction and the Lamb shift for the K-, L-, and M-shell electrons. Results are presented which use experimental and semiempirical fits to level energies for ions with atomic numbers up to Z = 42. Above Z = 42, purely theoretical results are given. It is shown that the agreement between our theoretical results and the semiempirical values of the level energies improves rapidly as Z increases, with all values in excellent agreement by Z = 42.
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