Experimental perspectives on the matter–antimatter asymmetry puzzle: developments in electron EDM and experiments

D Comparat, C Malbrunot… - … of the Royal …, 2024 - royalsocietypublishing.org
In the search for clues to the matter–antimatter puzzle, experiments with atoms or molecules
play a particular role. These systems allow measurements with very high precision, as …

Cold and stable antimatter for fundamental physics

Y Yamazaki - Proceedings of the Japan Academy, Series B, 2020 - jstage.jst.go.jp
The field of cold antimatter physics has rapidly developed in the last 20 years, overlapping
with the period of the Antiproton Decelerator (AD) at CERN. The central subjects are CPT …

Antiproton annihilation at rest in thin solid targets and comparison with Monte Carlo simulations

C Amsler, H Breuker, M Bumbar, M Cerwenka… - The European Physical …, 2024 - Springer
The mechanism of antiproton–nucleus annihilation at rest is not fully understood, despite
substantial previous experimental and theoretical work. In this study we used slow extracted …

Measurement of the principal quantum number distribution in a beam of antihydrogen atoms

B Kolbinger, C Amsler, SA Cuendis, H Breuker… - The European Physical …, 2021 - Springer
Abstract The ASACUSA (Atomic Spectroscopy And Collisions Using Slow Antiprotons)
collaboration plans to measure the ground-state hyperfine splitting of antihydrogen in a …

Near-threshold production of antihydrogen positive ion in positronium–antihydrogen collision

T Yamashita, Y Kino, E Hiyama, S Jonsell… - New Journal of …, 2021 - iopscience.iop.org
Near-threshold production of antihydrogen ion (H+) in positronium–antihydrogen collisions
is predicted by a rigorous four-body scattering calculation. The convergence of the cross …

Near-threshold behavior of positronium-antihydrogen scattering cross sections

T Yamashita, Y Kino, E Hiyama, S Jonsell, P Froelich - Physical Review A, 2022 - APS
We have performed a comprehensive numerical investigation of the scattering of
antihydrogen (H¯) and positronium (Ps) atoms, at collision energies just above the threshold …

[HTML][HTML] Injection and capture of antiprotons in a Penning–Malmberg trap using a drift tube accelerator and degrader foil

C Amsler, H Breuker, M Bumbar… - Nuclear Instruments and …, 2024 - Elsevier
Abstract The Antiproton Decelerator (AD) at CERN provides antiproton bunches with a
kinetic energy of 5.3 MeV. The Extra-Low ENergy Antiproton ring at CERN, commissioned at …

Four-body calculation of inelastic scattering cross sections of positronium–antihydrogen collision

T Yamashita, Y Kino, E Hiyama, S Jonsell, P Froelich - Few-body systems, 2021 - Springer
We overview our recent calculations of scattering cross sections of positronium–
antihydrogen collisions. We discuss the cross sections calculated in the vicinity of the four …

The upgrade of the ASACUSA scintillating bar detector for antiproton annihilation measurements

G Costantini, L Giorleo, G Gosta, M Leali… - Journal of …, 2023 - iopscience.iop.org
Antiproton annihilations on matter nuclei are usually detected by tracking the charged pions
emitted in the process. A detector made of plastic scintillating bars have been built and used …

Hyperfine spectroscopy of antihydrogen, hydrogen, and deuterium

E Widmann, ASACUSA Cusp Collaboration - Physics of Particles and …, 2022 - Springer
The prospects of tests of CPT symmetry using precision spectroscopy of antihydrogen are
discussed with special emphasis on the ground-state hyperfine structure, a measurement of …