Energy levels and radiative rates in P-like Krypton

Abstract

Excitation energies, lifetimes, hyperfine structures and Landé gJ-factors belonging to the n = 3 states (1s22s22p6)3s23p3, 3s3p4, and 3s23p23d configurations of phosphorus-like Kr XXII have been performed with the multiconfiguration Dirac-Hartree-Fcok (MCDHF) method, as well as wavelengths, line strengths, oscillator strengths, transitions rates for electric dipole (E1), electric quadrupole (E2), magnetic dipole (M1), magnetic quadrupole (E2) transitions among these levels. High-accuracy calculations have been calculated as benchmarks in the request for accurate treatments of relativity, electron correlation and quantum electrodynamic (QED) effects in multi-valence-electron systems. Comparisons are made between the present two data sets, as well as with the experimental results and the experimentally compiled energy values of the National Institute for Standards and Technology wherever available. The calculated values including core-valence correction are found to be in a good agreement with other theoretical and experimental values. The present results are accurate enough for identification of emission lines involving the n = 3 levels, and are also useful for modeling and diagnosing plasmas.