476 citations · 1.2k across the 27 of their papers we have counts for
28 papers
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…
First Proton-Induced Cross Sections on a Stored Rare Ion Beam: Measurement of 118Te(p,γ) for Explosive Nucleosynthesis
F. Dellmann, J. Glorius, Yu. A. Litvinov +75
We present the first nuclear cross-section measurements of (p,γ) and (p,n) reactions on 118Te at energies relevant for the γ-process nucleosynthesis. Absolute cross-section values…
The QTF-Backbone: Proposal for a Nationwide Optical Fibre Backbone in Germany for Quantum Technology and Time and Frequency Metrology
Tara Cubel Liebisch, Peter Kaufmann, Harald Schnatz +166
The recent breakthroughs in the distribution of quantum information and high-precision time and frequency (T&F) signals over long-haul optical fibre networks have transformative po…
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,…
Charge radii of neutron-rich scandium isotopes and the seniority symmetry in the shell
S. W. Bai, X. F. Yang, Á. Koszorús +30
Nuclear charge radii of neutron-rich Sc isotopes were measured using collinear laser spectroscopy at CERN-ISOLDE. The new data reveal that the charge radii of scandium is…
Charge Radii Measurements of Exotic Tin Isotopes in the Proximity of and
F. P. Gustafsson, L. V. Rodríguez, R. F. Garcia Ruiz +51
We report nuclear charge radii for the isotopes Sn, measured using two different collinear laser spectroscopy techniques at ISOLDE-CERN. These measurements clarify the…
Effective proton-neutron interaction in mirror nuclei
Y. M. Xing, Y. F. Luo, K. H. Li +9
Effective proton-neutron interactions, , in mirror nuclei are systematically analyzed using the ground-state atomic masses. A mirror symmetry of is found for bound…
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…
High-temperature Tl decay clarifies Pb dating in early Solar System
G. Leckenby, R. S. Sidhu, R. J. Chen +56
Radioactive nuclei with lifetimes on the order of millions of years can reveal the formation history of the Sun and active nucleosynthesis occurring at the time and place of its bi…
Precision spectroscopy on Be overcomes limitations from nuclear structure
Stefan Dickopf, Bastian Sikora, Annabelle Kaiser +7
Many powerful tests of the Standard Model of particle physics and searches for new physics with precision atomic spectroscopy are plagued by our lack of knowledge of nuclear proper…
Electromagnetic moments of the odd-mass nickel isotopes Ni
P. Müller, S. Kaufmann, T. Miyagi +24
The magnetic dipole and the spectroscopic quadrupole moments of the nuclear ground states in the odd-mass nickel isotopes Ni have been determined using collinear laser sp…
Nuclear charge radii of germanium isotopes around = 40
S. J. Wang, A. Kanellakopoulos, X. F. Yang +26
Collinear laser spectroscopy measurements were performed on Ge isotopes () at ISOLDE-CERN, by probing the $4s^2 4p^2 \, ^3\!P_1 \rightarrow 4s^2 4p 5s \, ^3\!P_1^…
Probing new bosons and nuclear structure with ytterbium isotope shifts
Menno Door, Chih-Han Yeh, Matthias Heinz +24
In this Letter, we present mass-ratio measurements on highly charged Yb ions with a precision of and isotope-shift measurements on Yb on the …
Penning-trap measurement of the -value of the electron capture in for the determination of the electron neutrino mass
Christoph Schweiger, Martin Braß, Vincent Debierre +19
The investigation of the absolute scale of the effective neutrino mass remains challenging due to the exclusively weak interaction of neutrinos with all known particles in the stan…
Atomic mass determination of uranium-238
Kathrin Kromer, Chunhai Lyu, Jacek Bieroń +10
The atomic mass of uranium-238 has been determined to be , improving the literature uncertainty by two orders of magnitude. It is obtained from a m…
Penning-Trap Mass Measurement of Helium-4
Sangeetha Sasidharan, Olesia Bezrodnova, Sascha Rau +3
Light-Ion Trap (LIONTRAP), a high-precision Penning-trap mass spectrometer, was used to determine the atomic mass of He. Here, we report a 12 parts-per-trillion measurement o…
Observation of a low-lying metastable electronic state in highly charged lead by Penning-trap mass spectrometry
Kathrin Kromer, Chunhai Lyu, Menno Door +10
Highly charged ions (HCIs) offer many opportunities for next-generation clock research due to the vast landscape of available electronic transitions in different charge states. The…
Nuclear charge radius of Al and its implication for V in the quark-mixing matrix
P. Plattner, E. Wood, L. Al Ayoubi +50
Collinear laser spectroscopy was performed on the isomer of the aluminium isotope Al. The measured isotope shift to Al in the $3s^{2}3p\;^{2}\!P^\circ_{3/2} \rightar…
Electroweak Nuclear Properties from Single Molecular Ions in a Penning Trap
Jonas Karthein, Silviu-Marian Udrescu, Scott B. Moroch +10
We present a novel technique to probe electroweak nuclear properties by measuring parity violation (PV) in single molecular ions in a Penning trap. The trap's strong magnetic field…
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]…
Mass-difference measurements on heavy nuclides with at an eV/c2 accuracy level with PENTATRAP
A. Rischka, H. Cakir, M. Door +13
First ever measurements of the ratios of free cyclotron frequencies of heavy highly charged ions with Z>50 with relative uncertainties close to 1e-11 are presented. Such accurate m…
Suppression of Penning discharges between the KATRIN spectrometers
M. Aker, K. Altenmüller, A. Beglarian +151
The KArlsruhe TRItium Neutrino experiment (KATRIN) aims to determine the effective electron (anti)neutrino mass with a sensitivity of (90 C.L.) by precise…
An improved upper limit on the neutrino mass from a direct kinematic method by KATRIN
M. Aker, K. Altenmüller, M. Arenz +205
We report on the neutrino mass measurement result from the first four-week science run of the Karlsruhe Tritium Neutrino experiment KATRIN in spring 2019. Beta-decay electrons from…
Muonic vacuum polarization correction to the bound-electron -factor
N. A. Belov, B. Sikora, R. Weis +5
The muonic vacuum polarization contribution to the -factor of the electron bound in a nuclear potential is investigated theoretically. The electric as well as the magnetic loop…