6533b85afe1ef96bd12b9602
RESEARCH PRODUCT
Electron-cooled accumulation of 4 × 109positrons for production and storage of antihydrogen atoms
D. W. FitzakerleyK. MarableT. D. G. SkinnerMatthew WeelM. C. GeorgeN. JonesW. OelertE. A. HesselsMarcin ZielińskiE. TardiffC. H. StorryC. D. HamleyGerald GabrielseD. Grzonkasubject
Condensed Matter::Quantum GasesPhysicsPhysics::General PhysicsAntiparticleAnnihilationPlasmaElectronCondensed Matter PhysicsPenning trap01 natural sciencesAtomic and Molecular Physics and Optics010305 fluids & plasmasNuclear physicsTorrAntimatter0103 physical sciencesPhysics::Atomic and Molecular ClustersPhysics::Atomic PhysicsAtomic physics010306 general physicsAntihydrogendescription
Four billion positrons (e+) are accumulated in a Penning–Ioffe trap apparatus at 1.2 K and <6 × 10−17 Torr. This is the largest number of positrons ever held in a Penning trap. The e+ are cooled by collisions with trapped electrons (e−) in this first demonstration of using e− for efficient loading of e+ into a Penning trap. The combined low temperature and vacuum pressure provide an environment suitable for antihydrogen () production, and long antimatter storage times, sufficient for high-precision tests of antimatter gravity and of CPT.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-02-23 | Journal of Physics B: Atomic, Molecular and Optical Physics |