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physics.atom-ph2025
Relativistic recoil as a key to the fine-structure puzzle in muonic
Konstantin A. Beyer, Igor A. Valuev, Zoia A. Mandrykina +2
The long-standing fine-structure anomaly in muonic Zr is resolved through a rigorous treatment of the relativistic-recoil effect. From a fit of ab initio QED calculations of…
physics.atom-ph2025
Pb nuclear charge radius revisited: closing the fine-structure-anomaly gap
Zewen Sun, Konstantin Beyer, Zoia A. Mandrykina +3
A comprehensive reevaluation of the root-mean-square nuclear charge radius is presented for the doubly magic Pb extracted from muonic spectroscopy measurements. By integrat…