A5105509529- Atomic and Molecular Physics
- Particle accelerators and beam dynamics
- Muon and positron interactions and applications
- Particle Detector Development and Performance
- Particle physics theoretical and experimental studies
- Nuclear reactor physics and engineering
- Cosmology and Gravitation Theories
- Nuclear Engineering Thermal-Hydraulics
- Relativity and Gravitational Theory
- Nuclear Materials and Properties
- Radiation Detection and Scintillator Technologies
- Quantum Mechanics and Applications
- Dark Matter and Cosmic Phenomena
- High-Energy Particle Collisions Research
- Particle Accelerators and Free-Electron Lasers
Swansea University
2016-2022
We present a description of the GBAR positron (e+) trapping apparatus, which consists three stage Buffer Gas Trap (BGT) followed by High Field Penning (HFT), and discuss its performance. The overall goal experiment is to measure acceleration neutral antihydrogen (H¯) atom in terrestrial gravitational field neutralising positive ion (H¯+), has been cooled low temperature, observing subsequent H¯ annihilation following free fall. To produce one H¯+ ion, about 1010 positrons, efficiently...
The GBAR experiment aims to measure the gravitational acceleration of antihydrogen H.It will use H+ ions formed by interaction antiprotons with a dense positronium cloud, which require about 10 positrons produce one H + .We present first results on positron accumulation, reaching 3.8 ± 0.4 × 8 e collected in 560 s.
We have developed a PbWO4 (PWO) detector with large dynamic range to measure the intensity of positron beam and absolute density ortho-positronium (o-Ps) cloud it creates.A simulation study shows that setup based on such detectors may be used determine angular distribution emission reflection o-Ps reduce part uncertainties measurement.These will allow improve precision in measurement cross-section for (anti)hydrogen formation by (anti)proton-positronium charge exchange optimize yield...
The aim of the GBAR (Gravitational Behavior Antimatter at Rest) experiment is to measure free fall acceleration an antihydrogen atom, in terrestrial gravitational field CERN and therefore test Weak Equivalence Principle with antimatter. local gravity a 1% uncertainty which can be reduced few parts 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-3</sup> .