LARGE-SCALE MULTICONFIGURATION DIRAC-FOCK CALCULATIONS OF THE HYPERFINE-STRUCTURE CONSTANTS OF THE 2S S-2(1 2), 2P P-2(1/2), AND 2P P-2(3/2) STATES OF LITHIUM/

The hyperfine constants for the ground and two lowest excited states o f lithium an calculated in a multiconfiguration Dirac-Fock model. Conv ergence of the calculated magnetic dipole and electric quadrupole cons tants is studied as the active set of orbitals is systematically incre ased. The final results are compared with experimental data and theore tical values obtained from other methods.