The (2)Sigma (+) and (2)Pi states of MgO- and the (1)Sigma (+), (1)Pi, and
(3)Pi states of MgO are studied using the ACPF approach. The computed spect
roscopic constants are in good agreement with the available experimental. d
ata. The computed Franck-Condon factors and photodetachment overlaps are co
mpared with experiment. (C) 2001 Elsevier Science B.V. All rights reserved.