activity
20042026
most citedImproved Measurement of the Hydrogen 1S - 2S Transition Frequency

430 citations · 1.6k across the 36 of their papers we have counts for

collaborators

38 papers

nucl-ex2026

Nuclear Charge Radius of Be from Muonic Atom Spectroscopy Using a Microcalorimeter

Ofir Eizenberg, Shikha Rathi, Andreas Abeln +34

The transition energy in muonic Be was measured using a metallic magnetic calorimeter, resulting in eV. The result is 30 times more pre…

physics.ins-det2023★ 8 cited

MMC Array to Study X-ray Transitions in Muonic Atoms

Daniel Unger, Andreas Abeln, Thomas Elias Cocolios +19

The QUARTET collaboration aims to significantly improve the precision of the absolute nuclear charge radii of light nuclei from Li to Ne by using an array of metallic magnetic calo…

physics.atom-ph2023★ 22 cited

Towards Precision Muonic X-Ray Measurements of Charge Radii of Light Nuclei

Ben Ohayon, Andreas Abeln, Silvia Bara +20

We propose an experiment to measure the nuclear charge radii of light elements with up to 20~times higher accuracy. These are essential both for understanding nuclear physics at lo…

physics.optics2023

A compact 20-pass thin-disk multipass amplifier stable against thermal lensing effects and delivering 330 mJ pulses with

Manuel Zeyen, Lukas Affolter, Marwan Abdou Ahmed +11

We report on an Yb:YAG thin-disk multipass amplifier delivering 50 ns long pulses at a central wavelength of 1030 nm with an energy of 330 mJ at a repetition rate of 100 Hz. The be…

physics.atom-ph2023★ 10 cited

The helion charge radius from laser spectroscopy of muonic helium-3 ions

The CREMA Collaboration, Karsten Schuhmann, Luis M. P. Fernandes +37

Hydrogen-like light muonic ions, in which one negative muon replaces all the electrons, are extremely sensitive probes of nuclear structure, because the large muon mass increases t…

physics.optics2023★ 1 cited

Injection-seeded high-power Yb:YAG thin-disk laser stabilized by the Pound-Drever-Hall method

Manuel Zeyen, Lukas Affolter, Marwan Abdou Ahmed +12

We demonstrate an injection-seeded thin-disk Yb:YAG laser at 1030 nm, stabilized by the Pound-Drever-Hall (PDH) method. We modified the PDH scheme to obtain an error signal free fr…