Centrifugal separation of antiprotons and electrons

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

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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.

Original languageEnglish (US)
Article number213002
JournalPhysical Review Letters
Volume105
Issue number21
DOIs
StatePublished - Nov 16 2010
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Gabrielse, G., Kolthammer, W. S., McConnell, R., Richerme, P., Wrubel, J., Kalra, R., Novitski, E., Grzonka, D., Oelert, W., Sefzick, T., Zielinski, M., Borbely, J. S., Fitzakerley, D., George, M. C., Hessels, E. A., Storry, C. H., Weel, M., Müllers, A., Walz, J., & Speck, A. (2010). Centrifugal separation of antiprotons and electrons. Physical Review Letters, 105(21), [213002]. https://doi.org/10.1103/PhysRevLett.105.213002