Energies and E1, M1, E2, and M2 transition rates for states of the 2s22p3, 2s2p4, and 2p5 configurations in nitrogen-like ions between F III and Kr XXX

Calculations with spectroscopic accuracy for energies, transition rates, hyperfine interaction constants, and Landé g -factors in nitrogen-like Kr XXX

“…These results are the most accurate so far and the differences between the calculated energies and the NIST observations are within 0.1%. The present MBPT and MCDF calculations confirm the energies of Rynkun et al [18]. The average difference between the MCDF/MBPT and MCDF2 values is 0.03% and 0.04% for the n = 2 states.…”

“…Recently, using the MCDF method, Rynkun et al [18] reported the energies and transition rates (label by MCDF2) for the 15 states of the n = 2 configurations in N-like ions Kr XXX. These results are the most accurate so far and the differences between the calculated energies and the NIST observations are within 0.1%.…”

“…On the theoretical side, many Kr XXX calculations were performed for the transitions involving the n = 2 states [16][17][18][19][20][21]. Among these calculations, the most accurate and complete one is the multi-configuration DiracFock (MCDF) calculation carried out by Rynkun et al [18] using the GRASP2K code [22], in which a full set of consistent and highly accurate energy levels and transition rates, including electric dipole (E1), magnetic dipole (M1), electric quadrupole (E2), magnetic quadrupole (M2), was presented.…”

“…Among these calculations, the most accurate and complete one is the multi-configuration DiracFock (MCDF) calculation carried out by Rynkun et al [18] using the GRASP2K code [22], in which a full set of consistent and highly accurate energy levels and transition rates, including electric dipole (E1), magnetic dipole (M1), electric quadrupole (E2), magnetic quadrupole (M2), was presented. However, accurate results involving higher-lying states are also required for modeling and diagnosing of plasmas.…”

Isotope shifts in beryllium-, boron-, carbon-, and nitrogen-like ions from relativistic configuration interaction calculations

“…The last column gives the number of CSFs for the RCI calculations. The described computational strategy has previously been used by Rynkun et al [39][40][41] to compute energies and transition rates, and more details can be found in these papers. …”