Driven Production of Cold Antihydrogen and the First Measured Distribution of Antihydrogen States

G. Gabrielse*, N. S. Bowden, P. Oxley, A. Speck, C. H. Storry, J. N. Tan, M. Wessels, D. Grzonka, W. Oelert, G. Schepers, T. Sefzick, J. Walz, H. Pittner, T. W. Hänsch, E. A. Hessels

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

208 Scopus citations

Abstract

Cold antihydrogen is produced when antiprotons are repeatedly driven into collisions with cold positrons within a nested Penning trap. Efficient antihydrogen production takes place during many cycles of positron cooling of antiprotons. A first measurement of a distribution of antihydrogen states is made using a preionizing electric field between separated production and detection regions. Surviving antihydrogen is stripped in an ionization well that captures and stores the freed antiproton for background-free detection.

Original languageEnglish (US)
JournalPhysical review letters
Volume89
Issue number23
DOIs
StatePublished - 2002

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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