8 citations · 24 across the 9 of their papers we have counts for
10 papers
Testing New Scalar Interactions in Few-Electron Highly Charged Ions
M. Moretti, C. de Jonge, J. Jaeckel +2
We investigate how a hypothetical scalar boson mediating an interaction between electrons as well as between electrons and nucleons would affect the g factor of lithium-like highly…
Higher-order corrections to the field shift in atomic systems
V. A. Yerokhin, Z. Harman, C. H. Keitel
Differences in nuclear charge distributions between isotopes lead to small changes in atomic spectra known as the field shift. While largely proportional to the change in the mean-…
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…
Two-loop vacuum polarization in a Coulomb field
S. A. Volkov, V. A. Yerokhin, Z. Harman +1
The leading-order two-loop vacuum-polarization potential, linear in the Coulomb field of a nucleus, was first derived in the seminal 1955 work of Källén-Sabry. The higher-order two…
Fermion selective tests of new physics with the bound electron g-factor
Matteo Moretti, Christoph H. Keitel, Zoltán Harman
The use of high-precision measurements of the factor of single-electron ions is considered as a detailed probe for physics beyond the Standard Model. The contribution of the ex…
QED calculations of the - transition energies in Li-like ions
V. A. Yerokhin, Z. Harman, C. H. Keitel
Systematic QED calculations of ionization energies of the , , and states, as well as the -- and -- transition energies ar…
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…
Two-loop electron self-energy with accelerated partial-wave expansion
V. A. Yerokhin, Z. Harman, C. H. Keitel
Calculations of the two-loop electron self-energy for the and states of hydrogen-like ions are reported, performed to all orders in the nuclear binding strength par…
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…
One-loop electron self-energy with accelerated partial-wave expansion in Coulomb gauge
V. A. Yerokhin, Z. Harman, C. H. Keitel
Numerical calculations of the electron self-energy without any expansion in the binding nuclear field are required in order to match the rapidly advancing precision of experimental…