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Experimental and theoretical studies of lifetimes and transition probabilities for Au II

På svenska

Author

  • Zhang Zhiguo
  • Tomas Brage
  • LJ Curtis
  • Hans Lundberg
  • Indrek Martinson

Summary, in English

We report lifetime measurements for three of the 5d(9)6p levels in An II and relativistic multiconfiguration Dirac-Fock (MCDF) calculations of lifetimes and transitions probabilities in this ion. The work was motivated by significant disagreements between previous experimental 5d(9)6p lifetimes, obtained by means of the beam-foil (BF) method and theoretical data based on Hartree-Fock calculations in which relativistic effects were included as perturbations. The new measurements, based on laser-induced fluorescence, support the BF data and are also in excellent agreement with the MCDF results. We confirm that, while computational methods which include perturbative relativistic corrections appear to be adequate for moderately heavy elements such as Ag, fully relativistic calculations are essential for describing systems as heavy as Au.

Publishing year

2002

Language

English

Pages

483-490

Publication/Series

Journal of Physics B: Atomic, Molecular and Optical Physics

Volume

35

Issue

3

Document type

Journal article

Publisher

IOP Publishing

Topic

  • Condensed Matter Physics
  • Atom and Molecular Physics and Optics

Status

Published

ISBN/ISSN/Other

  • ISSN: 0953-4075