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

Summary, in English

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.

• Författare: Xueling Guo; Jon Grumer; Tomas Brage; Ran Si; Chongyang Chen; Per Jönsson; Kai Wang; Jun Yan; Roger Hutton; Yaming Zou
• Avdelning/ar: Matematisk fysik
• Publiceringsår: 2016-06-08
• Språk: Engelska
• Publikation/Tidskrift/Serie: Journal of Physics B: Atomic, Molecular and Optical Physics
• Volym: 49
• Issue: 13
• Länkar: http://dx.doi.org/10.1088/0953-4075/49/13/135003
• Dokumenttyp: Artikel i tidskrift
• Förlag: IOP Publishing
• Ämne: Atom and Molecular Physics and Optics
• Nyckelord: atomic data; atomic structure; electron correlation; energy levels; lifetimes; tungsten
• Status: Published
• ISBN/ISSN/Övrigt: ISSN: 0953-4075