activity
20082026
most citedTwo-photon laser spectroscopy of antiprotonic helium and the antiproton-to-electron mass ratio

410 citations · 649 across the 18 of their papers we have counts for

collaborators

19 papers

physics.atom-ph2026

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,…

physics.ins-det2023★ 8 cited

BASE-STEP: A transportable antiproton reservoir for fundamental interaction studies

C. Smorra, F. Abbass, M. Bohman +26

Currently, the only worldwide source of low-energy antiprotons is the AD/ELENA facility located at CERN. To date, all precision measurements on single antiprotons have been conduct…

hep-ex2023★ 2 cited

Testing CPT Invariance by High-Precision Comparisons of Fundamental Properties of Protons and Antiprotons at BASE

E. J. Wursten, M. J. Borchert, J. A. Devlin +24

The BASE collaboration at the Antiproton Decelerator facility of CERN compares the fundamental properties of protons and antiprotons using advanced Penning-trap systems. In previou…

physics.atom-ph2022

Diffusion of muonic hydrogen in hydrogen gas and the measurement of the 1 hyperfine splitting of muonic hydrogen

J. Nuber, A. Adamczak, M. Abdou Ahmed +46

The CREMA collaboration is pursuing a measurement of the ground-state hyperfine splitting (HFS) in muonic hydrogen (p) with 1 ppm accuracy by means of pulsed laser spectroscopy.…

physics.atom-ph2022★ 6 cited

Room-temperature emission of muonium from aerogel and zeolite targets

A. Antognini, P. Crivelli, L. Gerchow +12

A low-emittance, high-intensity atomic beam of muonium () using superfluid helium as muon-to-muonium converter is being developed at the Paul Scherre…

hep-ex2022★ 9 cited

Testing Lepton Flavor Universality and CKM Unitarity with Rare Pion Decays in the PIONEER experiment

PIONEER Collaboration, W. Altmannshofer, H. Binney +58

The physics motivation and the conceptual design of the PIONEER experiment, a next-generation rare pion decay experiment testing lepton flavor universality and CKM unitarity, are d…