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Sympathetic cooling of positrons to cryogenic temperatures for antihydrogen production

Author

Listed:
  • C. J. Baker

    (Swansea University)

  • W. Bertsche

    (University of Manchester
    Sci-Tech Daresbury)

  • A. Capra

    (TRIUMF)

  • C. L. Cesar

    (Universidade Federal do Rio de Janeiro)

  • M. Charlton

    (Swansea University)

  • A. Cridland Mathad

    (Swansea University)

  • S. Eriksson

    (Swansea University)

  • A. Evans

    (University of Calgary)

  • N. Evetts

    (University of British Columbia)

  • S. Fabbri

    (University of Manchester)

  • J. Fajans

    (University of California at Berkeley)

  • T. Friesen

    (University of Calgary)

  • M. C. Fujiwara

    (TRIUMF)

  • P. Grandemange

    (TRIUMF)

  • P. Granum

    (Aarhus University)

  • J. S. Hangst

    (Aarhus University)

  • M. E. Hayden

    (Simon Fraser University)

  • D. Hodgkinson

    (University of Manchester)

  • C. A. Isaac

    (Swansea University)

  • M. A. Johnson

    (University of Manchester)

  • J. M. Jones

    (Swansea University)

  • S. A. Jones

    (Aarhus University)

  • S. Jonsell

    (Stockholm University)

  • L. Kurchaninov

    (TRIUMF)

  • N. Madsen

    (Swansea University)

  • D. Maxwell

    (Swansea University)

  • J. T. K. McKenna

    (Aarhus University)

  • S. Menary

    (York University)

  • T. Momose

    (University of British Columbia)

  • P. Mullan

    (Swansea University)

  • K. Olchanski

    (TRIUMF)

  • A. Olin

    (TRIUMF)

  • J. Peszka

    (Swansea University)

  • A. Powell

    (University of Calgary)

  • P. Pusa

    (University of Liverpool)

  • C. Ø. Rasmussen

    (CERN)

  • F. Robicheaux

    (Purdue University)

  • R. L. Sacramento

    (Universidade Federal do Rio de Janeiro)

  • M. Sameed

    (University of Manchester)

  • E. Sarid

    (Soreq NRC
    Ben Gurion University)

  • D. M. Silveira

    (Universidade Federal do Rio de Janeiro)

  • G. Stutter

    (Aarhus University)

  • C. So

    (University of Calgary)

  • T. D. Tharp

    (Marquette University)

  • R. I. Thompson

    (University of Calgary)

  • D. P. Werf

    (Swansea University)

  • J. S. Wurtele

    (University of California at Berkeley)

Abstract

The positron, the antiparticle of the electron, predicted by Dirac in 1931 and discovered by Anderson in 1933, plays a key role in many scientific and everyday endeavours. Notably, the positron is a constituent of antihydrogen, the only long-lived neutral antimatter bound state that can currently be synthesized at low energy, presenting a prominent system for testing fundamental symmetries with high precision. Here, we report on the use of laser cooled Be+ ions to sympathetically cool a large and dense plasma of positrons to directly measured temperatures below 7 K in a Penning trap for antihydrogen synthesis. This will likely herald a significant increase in the amount of antihydrogen available for experimentation, thus facilitating further improvements in studies of fundamental symmetries.

Suggested Citation

  • C. J. Baker & W. Bertsche & A. Capra & C. L. Cesar & M. Charlton & A. Cridland Mathad & S. Eriksson & A. Evans & N. Evetts & S. Fabbri & J. Fajans & T. Friesen & M. C. Fujiwara & P. Grandemange & P. G, 2021. "Sympathetic cooling of positrons to cryogenic temperatures for antihydrogen production," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-26086-1
    DOI: 10.1038/s41467-021-26086-1
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    References listed on IDEAS

    as
    1. M. Amoretti & C. Amsler & G. Bonomi & A. Bouchta & P. Bowe & C. Carraro & C. L. Cesar & M. Charlton & M. J. T. Collier & M. Doser & V. Filippini & K. S. Fine & A. Fontana & M. C. Fujiwara & R. Funakos, 2002. "Production and detection of cold antihydrogen atoms," Nature, Nature, vol. 419(6906), pages 456-459, October.
    Full references (including those not matched with items on IDEAS)

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