The ingredients of cold antihydrogen: Simultaneous confinement of antiprotons and positrons at 4 K

G. Gabrielse*, D. S. Hall, T. Roach, P. Yesley, A. Khabbaz, J. Estrada, C. Heimann, H. Kalinowsky

*Corresponding author for this work

Research output: Contribution to journalArticle

55 Scopus citations

Abstract

Low energy antiprotons and cold positrons are stored together and observed to interact for the first time. The particles and the nested Penning trap that confines them are cooled to 4.2 K, within a vacuum better than 5 × 10-17 Torr. The simultaneous confinement clearly demonstrates the potential of a nested Penning trap for the production of cold antihydrogen. Contaminant ions play a deleterious role, and we observe a surprising coupling between the positron and antiproton accumulation mechanisms.

Original languageEnglish (US)
Pages (from-to)311-315
Number of pages5
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume455
Issue number1-4
DOIs
StatePublished - Jan 1 1999

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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