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Phys. Rev. Lett. 100, 113001 (2008) [4 pages]

Antihydrogen Production within a Penning-Ioffe Trap

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G. Gabrielse1,*, P. Larochelle1, D. Le Sage1, B. Levitt1, W. S. Kolthammer1, R. McConnell1, P. Richerme1, J. Wrubel1, A. Speck2, M. C. George3,4, D. Grzonka3, W. Oelert3, T. Sefzick3, Z. Zhang3, A. Carew4, D. Comeau4, E. A. Hessels4, C. H. Storry4, M. Weel4, and J. Walz5 (ATRAP Collaboration)
1Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
2Rowland Institute at Harvard, Harvard University, Cambridge, Massachusetts 02142, USA
3IKP, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
4York University, Department of Physics and Astronomy, Toronto, Ontario M3J 1P3, Canada
5Institut fur Physik, Johannes Gutenberg-Universität, D-55099 Mainz, Germany

Received 6 November 2007; published 18 March 2008

Slow antihydrogen (H̅ ) is produced within a Penning trap that is located within a quadrupole Ioffe trap, the latter intended to ultimately confine extremely cold, ground-state H̅ atoms. Observed H̅ atoms in this configuration resolve a debate about whether positrons and antiprotons can be brought together to form atoms within the divergent magnetic fields of a quadrupole Ioffe trap. The number of detected H̅ atoms actually increases when a 400 mK Ioffe trap is turned on.

© 2008 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.100.113001
DOI:
10.1103/PhysRevLett.100.113001
PACS:
37.10.De, 36.10.−k, 41.20.−q, 41.90.+e

*ATRAP Collaboration spokesperson.

gabrielse@physics.harvard.edu

 
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