Relativistic atomic structure calculations for B-like xenon ion

Abstract

Excitation energies, transition parameters and lifetimes for 255 levels with $n$ $\le$ 4 configurations of B-like Xe${}^{49+}$ are calculated using the fully relativistic multiconfiguration Dirac–Hartree–Fock (MCDHF) method. Hyperfine structure constants, isotope shift and Landé $g_J$ factors are computed for the $2s^{2}2p,2s2p^2$ and $2p^3$ levels. The contribution of the Breit interaction and QED effects, mainly self-energy and vacuum polarization corrections, on these levels is also investigated. The uncertainties in the lifetimes and line strengths are computed, and transitions are classified according to the NIST accuracy nomenclature. A comparison with the previously available results is also carried out. This study provides extensive results for B-like Xe${}^{49+}$, which are useful for plasma diagnosis.