ABINITIO CALCULATIONS OF G(J) FACTORS FOR LI, BE+, AND BA+

Atomic g(j) factors have been calculated for Li, Be+, and Ba+ with accurate relativistic wave functions obtained in the coupled-cluster single- and double-excitation approximation. Correlation due to the Coulomb as well as the Breit interaction is included. The results are -2.002 301 58(20), -2.002 262 77(50), and -2.002 491 1(30) for Li, Be+, and Ba+, respectively, which agree well with the experimental results -2.002 301 00(64), -2.002 262 36(33), and -2.002 490 6(12). The inclusion of the Breit interaction in the wave functions gives significant contributions to the final results.