Relativistic electron-correlation on the 2p-2s transitions in Li-like to F-like Xe ions
School of Electronic Communication Engineering, Hainan Tropical Ocean University, 572022, Sanya, P.R. China
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Accepted: 13 May 2016
Published online: 21 June 2016
Energy levels, wavelengths, transition rates and line strengths are reported for transitions in Li-like to F-like Xe ions, Xe LII-XLVI. For the calculations, a fully relativistic GRASP2k code based on the multiconfiguration Dirac-Hartree-Fock (MCDHF) method has been adopted, Valence and core-Valence correlation effects were accounted for through single- and double-excitation expansions to increasing sets of active orbitals. The fine-structure energy levels and wavelengths are compared with experimental data and with values from other calculations. The calculated values including core-valence correlation are found to be similar and compare very well with other theoretical and experimental values for Xe ions. Our calculated wavelengths for Li-, Be- and B-like ions are much more precise than some available theoretical data and reveal significant shortcomings of the various theoretical predictions.
© Società Italiana di Fisica and Springer-Verlag Berlin Heidelberg, 2016