Relativistic many-body calculations of the energies ofn=2 states for the berylliumlike isoelectronic sequence

1 June 1996

journal article
research article
Published by American Physical Society (APS) in Physical Review A

Vol. 53 (6) , 4036-4053
https://doi.org/10.1103/physreva.53.4036

Abstract

Energies of the ten (2l2

l^{'}

) states of ions of the beryllium isoelectronic sequence are determined to second order in relativistic many-body perturbation theory. Both the second-order Coulomb interaction and the second-order Breit-Coulomb interaction are included. Corrections for the frequency-dependent Breit interaction are taken into account in lowest order only. The effect of the Lamb shift is also estimated and included. Comparison with experiment and other theoretical data is made. © 1996 The American Physical Society.

Keywords

This publication has 35 references indexed in Scilit:

Structure and Lamb shift of 2 $s_{1 / 2}$ -2 $p_{3 / 2}$ levels in lithiumlike ${Th}^{87 +}$ through neonlike ${Th}^{80 +}$
Physical Review A, 1995
Energies and fine structures of 1 $s^{2}$ 2snp(n=2,3) ${}^{1}$ $P^{o}$ and ${}^{3}$ $P_{2, 1, 0}^{o}$ states of Be-like ions
Physical Review A, 1994
Structure and Lamb shift of 2 $s_{1 / 2}$ -2 $p_{3 / 2}$ levels in lithiumlike $U^{89 +}$ through neonlike $U^{82 +}$
Physical Review Letters, 1993
Energies, fine structures, and isotope shifts of the 1 $s^{2}$ 2snlexcited states of the beryllium atom
Physical Review A, 1993
Energy levels 1s22lnl'(n= 2, 3, 4) of Na VIII – S XIII ions. comparison of two calculation methods: MCDF and MZ
Physica Scripta, 1992
Berylliumlike Mo xxxix and lithiumlike Mo xl observed in the Joint European Torus tokamak
Physical Review A, 1989
Spectral Lines of Highly-ionized Atoms for the Diagnostics of Fusion Plasmas
Physica Scripta, 1987
Comparison of Theoretical and Experimental Level Values of then= 2 Complex in Ions Isoelectronic with Li, Be, O and F
Physica Scripta, 1983
Oscillator strengths and transition probabilities of the Be(I) isoelectronic sequence for 2p2-2s2p and 2s2p-2s2 transitions
Journal of Quantitative Spectroscopy and Radiative Transfer, 1977
Perturbation theory in calculations of atomic energy levels
Journal of Physics B: Atomic and Molecular Physics, 1975