Journal Article

PreJuSER-12741

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Centrifugal Separation of Antiprotons and Electrons

Gabrielse, G. ; Kolthammer, W. S. ; McConnell, R. ; Richerme, P. ; Wrubel, J. ; Kalra, R. ; Novitski, E. ; Grzonka, D.FZJ* ; Oelert, W.FZJ* ; Sefzick, T.FZJ* ; Zielinski, M.FZJ* ; Borbely, J. S. ; Fitzakerley, D. ; George, M. C. ; Hessels, E. A. ; Storry, C. H. ; Weel, M. ; Müllers, A. ; Walz, J. ; Speck, A.

2010
APS College Park, Md.

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Please use a persistent id in citations: http://hdl.handle.net/2128/7263  doi:10.1103/PhysRevLett.105.213002

Abstract: 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.

Keyword(s): J

Note: We are grateful to CERN for the 5-MeV (p) over bar from its Antiproton Decelerator and to T. O'Neil for helpful comments. This work was supported by the NSF and AFOSR of the U.S., the BMBF, DFG, and DAAD of Germany, and the NSERC, CRC, CFI, and OIT of Canada. W. O. was supported in part by CERN.

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Contributing Institute(s):

1. Experimentelle Hadronstruktur (IKP-1)

Research Program(s):

1. Physik der Hadronen und Kerne (P53)

Appears in the scientific report 2010

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