Energy levels and radiative data for Kr-like W38+ from MCDHF and RMBPT calculations

Research output: Contribution to journalArticle

Abstract

Energies, transition rates, line strengths and lifetimes have been computed for all levels of the 4p 6 and 4p 54d configurations of W38+ by using the multi-configuration Dirac-Hartree-Fock (MCDHF) method as well as relativistic many-body perturbation theory. We investigate systematically correlation, relativistic and quantum electro-dynamical (QED) effects of different properties, including excitation energies and transition rates. We demonstrate that it is important to include the core-valence correlation of rather deep subshells (including 3d and 3p) to reach close to spectroscopic accuracy for the transition energies. We also show that high-multipole transitions (E3, M2) are important for the lifetime of some metastable levels of 4p 54d (). The present results are in good agreement with experiments and of considerably higher accuracy than those achieved in previous theoretical works.

Details

Authors
Organisations
External organisations
  • Peking University
  • Lund University
  • Fudan University
  • Malmö University
  • Hebei University
  • Institute of Applied Physics and Computational Mathematics (IAPCM), Beijing
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Atom and Molecular Physics and Optics

Keywords

  • atomic data, atomic structure, electron correlation, energy levels, lifetimes, tungsten
Original languageEnglish
Article number135003
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume49
Issue number13
Publication statusPublished - 2016 Jun 8
Publication categoryResearch
Peer-reviewedYes