1ST-PRINCIPLES RELATIVISTIC CALCULATIONS OF THE FINE-STRUCTURE INTERVALS AND MAGNETIC DIPOLE TRANSITION-PROBABILITIES IN THE 1S22P CONFIGURATION OF THE LITHIUM ISOELECTRIC SEQUENCE

We present the results of our first-principles relativistic calculations of the fine-structure intervals and magnetic dipole transition probabilities for the 1s22p configuration of the lithium isoelectronic sequence using a variational approach. The contributions of the Breit interaction and approximate Lamb-shift corrections are incorporated via first-order perturbation theory. Our results of the fine-structure intervals are in good agreement with experiment, but experimental data for the magnetic dipole transition probabilities are not available for comparison with our calculations. © 1990 The American Physical Society.