6 papers
Finite Nuclear Size Corrections on Hyperfine Structure in Muonic Atoms
DoÄa YaÅar, Bastian Sikora
Finite nuclear size (FNS) effects on the magnetic-dipole hyperfine splitting in muonic hydrogenlike ions are investigated within a fully relativistic Dirac framework. The FNS contr…
Two-loop electron self-energy in bound-electron factor: diagrams in momentum-coordinate representation
V. A. Yerokhin, B. Sikora, Z. Harman +1
The two-loop electron self-energy correction is one of the most problematic QED effects and, for a long time, was the dominant source of uncertainty in the theoretical prediction o…
Testing inter-electronic interaction in lithium-like tin
Jonathan Morgner, Vladimir A. Yerokhin, Charlotte M. Konig +9
Magnetic moments of bound-electron systems are a sensitive tool for testing fundamental interactions. factors of lithium-like ions have been rigorously studied in recent years,…
Factor of Boron-like Tin
J. Morgner, B. Tu, M. Moretti +10
In the ALPHATRAP experiment, the factor of boron-like has been measured with a parts-per-billion uncertainty. This is the first high-precision m…
Improved bound-electron g-factor theory through complete two-loop QED calculations
Bastian Sikora, Vladimir A. Yerokhin, Christoph H. Keitel +1
The two-loop self-energy correction to the bound-electron -factor in hydrogenlike ions is investigated, taking into account the electron-nucleus interaction exactly. This all-or…
Vacuum Polarization Effects in the Hyperfine Splitting of Hydrogen Like Ions
Junis Heiland Hoyo, Bastian Sikora
The hyperfine structure of bound electrons in hydrogen-like ions is considered with corrections to the energy levels due to vacuum polarization (VP). Corrections to the wave functi…