Excitation energies, oscillator strengths, and lifetimes of levels along the gold isoelectronic sequence
- Department of Physics, 225 Nieuwland Science Hall, University of Notre Dame, Notre Dame, Indiana 46566 (United States)
Energies of ns{sub 1/2}(n=6-9), np{sub j}(n=6-8), nd{sub j}(n=6-7), and 5f{sub j} states in neutral Au and Au-like ions with nuclear charges Z=80-83 are calculated using relativistic many-body perturbation theory. Reduced matrix elements, oscillator strengths, transition rates and lifetimes are determined for the 30 possible nl{sub j}-n{sup '}l{sub j{sup '}}{sup '} electric-dipole transitions. Results for a limited number states, ns{sub 1/2}, np{sub j}(n=6-7) and 6d{sub j} are obtained in the relativistic single-double (SD) approximation, where single and double excitations of Dirac-Fock wave functions are included to all orders in perturbation theory. Using SD wave functions, accurate values are obtained for energies of the eight lowest states and for the fourteen possible electric-dipole matrix elements between these states. With the aid of the SD wave functions, we also determine transition rates and oscillator strengths for the fourteen transitions together with lifetimes of 6p{sub j}, 7p{sub j}, and 6d{sub j} levels. We investigate the hyperfine structure in Hg II and Tl III. The hyperfine A values are determined for 6s{sub 1/2} and 6p{sub j} states in {sup 199}Hg{sup +}, {sup 201}Hg{sup +}, and {sup 205}Tl{sup 2+} isotopes. These calculations provide a theoretical benchmark for comparison with experiment and theory.
- OSTI ID:
- 20641155
- Journal Information:
- Physical Review. A, Vol. 69, Issue 5; Other Information: DOI: 10.1103/PhysRevA.69.052511; (c) 2004 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CATIONS
COMPARATIVE EVALUATIONS
E1-TRANSITIONS
ELECTRIC DIPOLES
EXCITATION
EXCITED STATES
GOLD
HYPERFINE STRUCTURE
LIFETIME
MANY-BODY PROBLEM
MATRIX ELEMENTS
MERCURY IONS
MERCURY ISOTOPES
OSCILLATOR STRENGTHS
PERTURBATION THEORY
RELATIVISTIC RANGE
THALLIUM IONS
THALLIUM ISOTOPES
WAVE FUNCTIONS