52 citations · 76 across the 13 of their papers we have counts for
14 papers
Tackling the uncertainty of the nuclear-polarization correction to the bound-electron factor by means of the nuclear Skyrme interaction
Arnab Choudhury, Igor A. Valuev
The Coulomb part of the leading-order nuclear-polarization correction to the bound-electron factor of hydrogenlike ions is investigated in a microscopic approach from the nucle…
Charge radii of Cl isotopes from x-ray spectroscopy of muonic atoms
K. A. Beyer, T. E. Cocolios, C. Costache +25
Nuclear charge radii are vital for nuclear and atomic physics, the determination of fundamental constants, and searches for new physics. Muonic atoms, where a single negative muon…
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…
Modern approach to muonic x-ray spectroscopy demonstrated through the measurement of stable Cl radii
K. A. Beyer, T. E. Cocolios, C. Costache +25
Recent advances in muonic x-ray experiments have reinvigorated efforts in measurements of absolute nuclear charge radii. Here, a modern approach is presented, and demonstrated thro…
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…
Nonlinear calcium King plot constrains new bosons and nuclear properties
A. Wilzewski, L. I. Huber, M. Door +39
Nonlinearities in King plots (KP) of isotope shifts (IS) can reveal the existence of beyond-Standard-Model (BSM) interactions that couple electrons and neutrons. However, it is cru…
Smallness of the nuclear polarization effect in the hyperfine structure of heavy muonic atoms as a stimulus for next-generation experiments
J. Vandeleur, G. Sanamyan, O. R. Smits +3
There is renewed interest in studies of muonic atoms, which may provide detailed information on nuclear structure. A major limiting factor in the interpretation of measurements is…
Full leading-order nuclear polarization in highly charged ions
Igor A. Valuev, Natalia S. Oreshkina
The nuclear-polarization corrections to the energy levels of highly charged ions are systematically investigated to leading order in the fine-structure constant. To this end, the n…
Nuclear Deformation Effects in the Spectra of Highly Charged Ions
Zewen Sun, Igor A. Valuev, Natalia S. Oreshkina
Nuclear deformation effects are theoretically investigated in terms of deformation corrections of the electronic binding and transition energies, factor, and hyperfine splittin…
Challenging Beyond-the-Standard-Model Solutions to the Fine-Structure Anomaly in Heavy Muonic Atoms
K. A. Beyer, I. A. Valuev, C. H. Keitel +2
The leading-order contribution of a new boson to the muonic fine-structure anomaly, which refers to a discrepancy between the predicted transition energies and spectroscopic measur…
Direct measurement of the He magnetic moments
A. Schneider, B. Sikora, S. Dickopf +10
Helium-3 has nowadays become one of the most important candidates for studies in fundamental physics [1, 2, 3], nuclear and atomic structure [4, 5], magnetometry and metrology [6]…
Evidence against nuclear polarization as source of fine-structure anomalies in muonic atoms
Igor A. Valuev, Gianluca Colò, Xavier Roca-Maza +2
A long-standing problem of fine-structure anomalies in muonic atoms is revisited by considering the splitting in muonic , and $^{208}\ma…
Improved access to the fine-structure constant with the simplest atomic systems
H. Cakir, N. S. Oreshkina, I. A. Valuev +4
A means to extract the fine-structure constant from precision spectroscopic data on one-electron ions is presented. We show that in an appropriately weighted difference of the…
Skyrme-type nuclear interaction as a tool for calculating the finite nuclear size correction to atomic energy levels and the bound-electron factor
Igor A. Valuev, Zoltán Harman, Christoph H. Keitel +1
A state-of-the-art approach for calculating the finite nuclear size correction to atomic energy levels and the bound-electron factor is introduced and demonstrated for a series…