activity
20202026
most citedPositron production using a 9 MeV electron linac for the GBAR experiment

21 citations · 30 across the 8 of their papers we have counts for

collaborators

9 papers

physics.ins-det2026

Monitoring antiproton numbers with a CMOS detector in a dense-track environment

C. Regenfus, P. Adrich, I. Belosevic +42

The production of antihydrogen by the GBAR experiment at AD/ELENA requires good knowledge of the number of incident keV antiprotons, which can be problematic. We have used a commer…

hep-ex2026

A determination of the backscattering probability of low-energy antiprotons

GBAR Collaboration, K. Park, E. Perez +42

It is commonly assumed that antiprotons impinging on a material surface annihilate promptly with the nuclei of the material. However, at kinetic energies of a few keV, this assumpt…

physics.atom-ph2026

Theory Framework for Medium-Mass Muonic Atoms

S. Rathi, I. A. Valuev, Z. Sun +4

We present a state-of-the-art theoretical approach for computing bound-state energies in muonic atoms, incorporating improved quantum electrodynamics effects and nuclear polarizati…

hep-ex2026

Record accumulation of antiprotons in a Penning-Malmberg Trap and their preparation for improved production of antihydrogen beams

B. Lee, B. Kim, P. Adrich +35

CERN's AD/ELENA ``antimatter factory'' - unique worldwide - serves several experiments, all of which use electromagnetic traps to accumulate antiprotons for fundamental science. Th…

physics.atom-ph2026

Shake-up and shake-off spectra in the electron capture decay of atomic Be

Mauro Guerra, Inwook Kim, Stephan Friedrich +33

The most stringent laboratory-based experimental limits on the existence of sub-MeV sterile neutrinos are currently set by decay spectroscopy of radioactive Be embedded into su…

physics.atom-ph2025

All-Order Wichmann and Kroll Contribution in Heavy Electronic and Exotic Atoms

Jonas Sommerfeldt, Paul Indelicato

We present a theoretical study of the Wichmann and Kroll correction to the one-loop vacuum polarization (VP) to all-orders in . We consider electronic, muonic, and antiprotonic…

physics.atom-ph2025★ 9 cited

Towards Precision Spectroscopy of Antiprotonic Atoms for Probing Strong-field QED

Gonçalo Baptista, Shikha Rathi, Michael Roosa +26

PAX (antiProtonic Atom X-ray spectroscopy) is a new experiment with the aim to test strong-field quantum electrodynamics (QED) effects by performing high-precision x-ray spectrosco…

physics.atom-ph2024

Few-electron highly charged muonic Ar atoms verified by electronic x rays

T. Okumura, T. Azuma, D. A. Bennett +40

Electronic x rays emitted by muonic Ar atoms in the gas phase were observed using a superconducting transition-edge-sensor microcalorimeter. The high-precision energy spectra p…

physics.ins-det2020★ 21 cited

Positron production using a 9 MeV electron linac for the GBAR experiment

M. Charlton, J. J. Choi, M. Chung +67

For the GBAR (Gravitational Behaviour of Antihydrogen at Rest) experiment at CERN's Antiproton Decelerator (AD) facility we have constructed a source of slow positrons, which uses…