Atomic properties of Pb III

Abstract

We carry out a systematic study of Pb iii properties using a hybrid method that combines configuration interaction and linearized coupled-cluster approaches. The calculations start from a [Xe]$4{f}^{14}5{d}^{10}$ Dirac-Fock potential. Excitation energies and lifetimes of the $6{p}^{2}$, $6sns$, $6snp$, and $6snd$ ($n\ensuremath{\le}9$) states are evaluated. Reduced matrix elements, oscillator strengths, and transition rates are determined for allowed electric-dipole transitions including these states. Extensive comparison with other theoretical and experimental values is carried out. Electric-dipole polarizabilities of the $6{s}^{2}\phantom{\rule{0.16em}{0ex}}{}^{1}\phantom{\rule{-0.16em}{0ex}}{S}_{0}$, $6s6p{\phantom{\rule{0.16em}{0ex}}}^{3}\phantom{\rule{-0.16em}{0ex}}{P}_{0}$, and $6s6p{\phantom{\rule{0.16em}{0ex}}}^{3}\phantom{\rule{-0.16em}{0ex}}{P}_{1}$ states in Pb iii and ground state polarizability of Pb${}^{4+}$ are reported.