Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR1.6k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR1.4k papers
- Heidelberg UniversityDE1.3k papers
- Max Planck SocietyDE1.1k papers
- University of ZurichCH1.1k papers
- European Organization for Nuclear ResearchCH1k papers
- Laboratoire de Physique Nucléaire et de Hautes ÉnergiesFR990 papers
- Institute of Nuclear Physics, Polish Academy of SciencesPL973 papers
- University of Maryland, College ParkUS940 papers
- Rutherford Appleton LaboratoryGB939 papers
- Institute for Nuclear ResearchRU922 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT912 papers
385 papers · 1 filter
The influence of the binding energy on Compton-scattering-driven ionization
N. Melzer, M. Kircher, G. Kastirke +31
We present a comprehensive study of Compton scattering of 20 keV photons by bound electrons over a wide range of binding energies (Ne 2p, Ne 2s, C 1s, O 1s, and Ne 1s orbitals). In…
A Cryogenic Penning Trap Based on Permanent Magnets
F. Völksen, K. K. Anjum, R. P. Czampiel +30
We report on a Penning trap based on NdFeB permanent magnets operated at 4\,K with a magnetic field strength of 280\,mT. Reliable loading and confinement of protons, H ions,…
Parts-per-million-accurate determination of the K photoionization resonance of Be-like oxygen with resolution of its O-O isotopic shift
Jonas Danisch, Marc Botz, Chintan Shah +15
We determine with high accuracy the energy of the inner-shell transition at…
High-precision Penning-trap spectroscopy of the ground-state spin structure of HD+
Charlotte M. König, Matthew Bohman, Fabian Heiße +10
We present high-precision spectroscopy of the ground-state hyperfine structure of HD at 4~T. We determine the bound-electron factor, $g_{e,\mathrm{bound}} = -2.002\,278\,54…
Sympathetic cooling of charged particles in Penning traps using electron cyclotron radiation
Jost Herkenhoff, Jonathan Notter, Klaus Blaum
We present a new technique for cooling arbitrary charged particles in a Penning trap by utilizing self-cooled electrons stored in a separate, macroscopically distant Penning trap a…
Atomic parity violation in highly charged Ca and Pb ions
A. V. Viatkina, Ch. G. Mertens, B. Ohayon +2
We calculate parity-violation-induced E1 amplitudes for the and transitions in H- and Li-like ions of Ca, Ca, and $^{2…
Coulomb crystallization of xenon highly charged ions in a laser-cooled Ca+ matrix
Leonid Prokhorov, Aaron A. Smith, Mingyao Xu +17
We report on the sympathetic cooling and Coulomb crystallization of xenon highly charged ions (HCIs) with laser-cooled Ca ions. The HCIs are produced in a compact electron beam…
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…
Enhanced One-Color-Two-Photon Resonant Ionization in Highly Charged Ions by Fine-Structure Effects
Moto Togawa, Chunhai Lyu, Chintan Shah +25
Ultraintense pulses from X-ray free-electron lasers can drive, within femtoseconds, multiple processes in the inner shells of atoms and molecules in all phases of matter. The ensui…
Model-independent determination of nuclear charge radii from Li-like ions
V. A. Yerokhin, B. Ohayon
We demonstrate that recent advances in QED theory of Li-like ions [V. A. Yerokhin et al., Phys. Rev. A 112, 042801 (2025)] enable determinations of absolute nuclear charge radii fo…
QED vacuum polarization in the Coulomb field of a nucleus: a method of high-order calculation
Sergey Volkov
A calculation of the QED vacuum polarization potential in the Coulomb field of a pointlike nucleus was presented in an earlier publication by the author and his collaborators. Corr…
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…
The nuclear charge radius of
Patrick Müller, Matthias Heinz, Phillip Imgram +6
The size is a key property of a nucleus. Accurate nuclear radii are extracted from elastic electron scattering, laser spectroscopy, and muonic atom spectroscopy. The results are no…
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…
Selective Bond Breaking in CO Induced by Photoelectron Recoil
J. Weiherer, N. Melzer, M. Kircher +16
After core-ionization of CO, typically an Auger-Meitner decay takes place, leading to the formation of a dicationic molecule that may dissociate into CO and O. We demon…
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…
Time-dependent Hole States in Multiconfigurational Time-Dependent Hartree-Fock Approaches: A Time-Domain Generalization of Extended Koopmans' Theorem
Zhao-Han Zhang, Yang Li, Himadri Pathak +3
We introduce a framework for resolving electron-hole dynamics within wavefunction-based multiconfigurational time-dependent Hartree-Fock (MCTDHF) theory. Central to this framework…
Periodic table for highly charged ions
Chunhai Lyu, Christoph H. Keitel, Zoltán Harman
Mendeleev's periodic table successfully groups atomic elements according to their chemical and spectroscopic properties. However, it becomes less sufficient in describing the elect…
Chiral Electron Momentum Distribution upon Strong-Field Ionization of Atoms
A. Geyer, J. Stindl, I. Dwojak +14
We present a scheme to synthesize a three-dimensional laser field that produces a chiral electron momentum distribution upon strong-field ionization of atoms. Our approach employs…
Extracting RABBITT-like phase information from time-dependent transient absorption spectra
J. Jakob, C. Bauer, M. -J. Ilhan +5
We explore how the spectral phase of atto\-second pulse trains influences the optical cross section in transient absorption (TA) spectroscopy. The interaction of extreme ultraviole…
Phase evolution of strong-field ionization
Lynda R Hutcheson, Maximilian Hartmann, Gergana D Borisova +6
We investigate the time-dependent evolution of the dipole phase shift induced by strong-field ionization (SFI) using attosecond transient absorption spectroscopy (ATAS) for time-de…
Excited-state magnetic properties of carbon-like
Lukas J. Spieß, Shuying Chen, Alexander Wilzewski +13
We measured the -factor of the excited state in ion to be with a relative uncertainty of . The magnetic field…
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…