D Kułaga-Egger and J Migdałek 2009 J. Phys. B: At. Mol. Opt. Phys. 42 185002 doi:10.1088/0953-4075/42/18/185002
D Kułaga-Egger and J Migdałek
Show affiliationsTheoretical radiative lifetimes of 29 levels in singly ionized lanthanum are determined using Cowan's 'Hartree–Fock and relativistic corrections' (HFR) method modified by us to include core–valence electron correlations in the core-polarization picture. The configuration mixing coefficients have been determined semiempirically through a least-squares fitting procedure treating Slater and spin–orbit integrals as free parameters. The results obtained compared with available experimental and other theoretical data confirm the importance of valence–core correlation effects.
32.70.Cs Oscillator strengths, lifetimes, transition moments
31.15.V- Electron correlation calculations for atoms, ions and molecules
31.15.bu Semi-empirical and empirical calculations (differential overlap, Hückel, PPP methods, etc.)
31.30.J- Relativistic and quantum electrodynamic (QED) effects in atoms, molecules, and ions
Issue 18 (28 September 2009)
Received 7 April 2009, in final form 24 June 2009
Published 9 September 2009
D Kułaga-Egger and J Migdałek 2009 J. Phys. B: At. Mol. Opt. Phys. 42 185002
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