Ab initio determination of the lifetime of the $6^2{P}_{3/2}$ state f or ${}^{207}P{b}^{+}$ by relativistic many-body theory

Abstract

Relativistic coupled-cluster(RCC) theory has been employed to calculate the life time of the $6^2{P}_{3/2}$ state of single ionized lead(${}^{207}Pb$) to an accurac y of 3% and compared with the corresponding value obtained using second order r elativistic many-body perturbation theory(RMBPT). This is one of the very few ap plications of this theory to excited state properties of heavy atomic systems. C ontributions from the different electron correlation effects are given explicitl y.

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• Neutron-Capture Elements in the Early Galaxy: Insights from a Large Sample of Metal-Poor Giants
• A New Approach To Relativistic Gaussian Basis Functions: Theory And Applications

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