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          Institute: MPI für Quantenoptik     Collection: Laser Spectroscopy     Display Documents



ID: 27742.0, MPI für Quantenoptik / Laser Spectroscopy
Background-free observation of cold antihydrogen with field-ionization analysis of its 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):2002-11-18
Title of Journal:Physical Review Letters
Journal Abbrev.:Phys. Rev. Lett.
Volume:89
Issue / Number:21
End Page:213401
Sequence Number of Article:213401
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:A background-free observation of cold antihydrogen atoms is made using field ionization followed by antiproton storage, a detection method that provides the first experimental information about antihydrogen atomic states. More antihydrogen atoms can be field ionized in an hour than all the antimatter atoms that have been previously reported, and the production rate per incident high energy antiproton is higher than ever observed. The high rate and the high Rydberg states suggest that the antihydrogen is formed via three-body recombination.
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, Toronto, ON M3J 1P3, Canada
Identifiers:ISI:000179068000014
ISSN:0031-9007
URL:http://link.aps.org/abstract/PRL/v89/e213401
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