Relativistic empirical specification of transition probabilities from measured lifetime and energy level data

A relativistic extension is made of methods by which intermediate coupling amplitudes are deduced from measured energy levels and combined with measured lifetimes to obtain transition probabilities within a multiplet between two pure configurations. A procedure for incorporating the relativistic j-dependence of the radial transition integral into the empirical data reduction is presented and applied to the isoelectronic formulation of the 2s(2)-2s2p transitions in the Be sequence and the 6s(2)6p(2)-6s(2)6p7s transitions in the Pb sequence.