A theoretical study of the C- 4So_3/2 and 2Do_{3/2,5/2} bound states and   C ground configuration: fine and hyperfine structures, isotope shifts and   transition probabilities
  This work is an ab initio study of the 2p3 4So_3/2, and 2Do_{3/2,5/2} states of C- and 2p2 3P_{0,1,2}, 1D_2, and 1S_0 states of neutral carbon. We use the multi-configuration Hartree-Fock approach, focusing on the accuracy of the wave function itself. We obtain all C- detachment thresholds, including correlation effects to about 0.5%. Isotope shifts and hyperfine structures are calculated. The achieved accuracy of the latter is of the order of 0.1 MHz. Intra-configuration transition probabilities are also estimated. 
T. Carette and M. R. Godefroid
physics.atom-ph