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          Institute: MPI für Quantenoptik     Collection: Laser Spectroscopy     Display Documents



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ID: 27842.0, MPI für Quantenoptik / Laser Spectroscopy
Driven production of cold antihydrogen and the first measured distribution of antihydrogen states
Authors:Gabrielse, G.; Bowden, N. S.; Oxley, P.; Speck, A.; Storry, C. H.; Tan, J. N.; Wessels, M.; Grzonka, D.; Oelert, W.; Schepers, G.; Sefzick, T.; Walz, J.; Pittner, H.; Hänsch, T. W.; Hessels, E. A.
Language:English
Date of Publication (YYYY-MM-DD):2002-12-01
Title of Journal:Physical Review Letters
Journal Abbrev.:Phys. Rev. Lett.
Volume:89
Issue / Number:23
End Page:233401
Sequence Number of Article:233401
Review Status:Peer-review
Audience:Experts Only
Abstract / Description: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.
External Publication Status:published
Document Type:Article
Communicated by:T. W. Hänsch
Affiliations:MPI für Quantenoptik/Laser Spectroscopy
External Affiliations:Harvard Univ, Dept Phys, Cambridge, MA 02138 USA; KFA Julich GmbH, Forschungszentrum, IKP, D-52425 Julich, Germany; CERN, CH-1211 Geneva, Switzerland; Univ Munich, D-80799 Munich, Germany; York Univ, Dept Phys & Astron, N York, ON M3J 1P3, Canada
Identifiers:ISI:000179362700018
ISSN:0031-9007
URL:http://link.aps.org/abstract/PRL/v89/e233401
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