Abstract
The oscillator strengths of the allowed and spin-forbidden ${5s}^{2}{}^{1}{S}_{0}--5s5p{}^{1,3}{P}_{1}^{o}$ transitions in the cadmium isoelectronic sequence are evaluated for $48<~Z<~57$ using the relativistic Hartree-Fock approach, including a core-polarization potential, and the multiconfiguration Dirac-Fock method, taking the valence and core-valence correlation effects into account. A good agreement is noted when comparing the two sets of theoretical data and when comparing theory with experiment for the spin-forbidden transition. The discrepancies observed between theory (both theories being in agreement) and experiment for the singlet-singlet transition indicate that some experimental data are in need of revision.
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