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This work presents a first time accurate calculation of the magnetic dipolehyperfine structure constants for the ground state and some low-lying excitedstates of Pb$^+$. By comparing different levels of approximation withexperimental results, we demonstrate the importance of correlation effectswhich reach beyond lower order relativistic many body perturbation theory.Employing relativistic coupled-cluster theory we obtain a quantitativeunderstanding of the core-polarization and correlation effects inherent in thissystem and observe completely different trends compared to $Ba^+$.Comment: 4 pages, 2 figures research articl

physical review. a, atomic, molecular, and optical physics/physical review, a, atomic, molecular, and optical physics

Application of relativistic coupled-cluster theory to heavy atomic systems with strongly interacting configurations: Hyperfine interactions in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mmultiscripts><mml:mi mathvariant="normal">Pb</mml:mi><mml:none /><mml:mo>+</mml:mo><mml:mprescripts /><mml:none /><mml:mn>207</mml:mn></mml:mmultiscripts></mml:math>

Application of relativistic coupled-cluster theory to heavy atomic systems with strongly interacting configurations: Hyperfine interactions inPb+207