Energy levels and spectral lines in the X-ray spectra of highly charged W XLIV
School of Science and Technology, Qiongzhou
572022, Hainan, P.R. China
Received: 19 January 2014
Received in final form: 7 May 2014
Published online: 29 July 2014
The multi-configuration Dirac-Hartree-Fock method is employed to calculate the fine-structure energy levels, wavelengths, transition probabilities, and oscillator strengths for electric dipole allowed (E1) and forbidden (M1, E2, M2) lines for the 4s24p and 4s4p2 configurations of W XLIV. The valence-valence and core-valence correlation effects are accounted for in a systematic way. Breit interactions and quantum electrodynamics (QED) effects are estimated in subsequent relativistic configuration interaction (CI) calculations. The present results are in good agreement with other available theoretical and experimental values, and we predict new data for several levels where no other theoretical and/or experimental results are available, precise measurements are clearly needed here.
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2014