A RELATIVISTIC CI STUDY ON OIII - WAVE-FUNCTIONS, EXCITATION-ENERGIES AND TRANSITION-PROBABILITIES

The relativistic CI method is used to determine N-electron wavefunctions for the 1s(2)2s(2)2p2 (P-3(0), P-3(2), 1D2), 1s(2)2p4 P-3(2) even levels, and the 1s(2)2s2p3 (3D1, P-3(1), S-3(1), P-1(1)), 1s(2)2s(2)2p3s (P-3(1), and P-1(1)), 1s(2)2s(2)2p3d (3D1, P-1(1), P-1(1)) j = 1 OIII levels. Excitation energies and emission probabilities between these levels are reported in the electric dipole approximation, both for the Coulomb and the Babushkin gauges. ns, npBAR, np, nd- and nd (n less-than-or-equal-to 17) numerical basis functions have been used for the construction of CSF's entering the CI expansion for the ASF's of these levels. Radiative matrix elements of the type calculated here within the framework of the relativistic CI method, may be used in laser assisted spectroscopic studies of atoms and ions.