6533b862fe1ef96bd12c7769

RESEARCH PRODUCT

Centrifugal Separation of Antiprotons and Electrons

D. GrzonkaAndrew SpeckPhilip RichermeMarcin ZielińskiJonathan WrubelR. McconnellM. C. GeorgeGerald GabrielseW. OelertD. W. FitzakerleyMatthew WeelC. H. StorryT. SefzickE. NovitskiR. KalraA. MüllersE. A. HesselsJochen WalzJ. S. BorbelyW. S. Kolthammer

subject

PhysicsAntiparticleGeneral Physics and AstronomyPlasmaElectronJlaw.inventionNuclear physicsAntiprotonlawAntimatterddc:550Physics::Accelerator PhysicsHigh Energy Physics::ExperimentPhysics::Atomic PhysicsAtomic physicsNuclear ExperimentAntihydrogenLeptonElectron cooling

description

Centrifugal separation of antiprotons and electrons is observed, the first such demonstration with particles that cannot be laser cooled or optically imaged. The spatial separation takes place during the electron cooling of trapped antiprotons, the only method available to produce cryogenic antiprotons for precision tests of fundamental symmetries and for cold antihydrogen studies. The centrifugal separation suggests a new approach for isolating low energy antiprotons and for producing a controlled mixture of antiprotons and electrons.

https://doi.org/10.1103/physrevlett.105.213002