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arxiv: hep-ex/0401039 · v1 · submitted 2004-01-29 · ✦ hep-ex · nucl-ex

The First Cold Antihydrogen

M. C. Fujiwara , M. Amoretti , C. Amsler , G. Bonomi , A.Bouchta , P.D. Bowe , C. Carraro , C.L. Cesar
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M. Charlton M. Doser V. Filippini A. Fontana R. Funakoshi P. Genova J.S. Hangst R.S. Hayano L.V. Jorgensen V. Lagomarsino R. Landua D. Lindelof E. Lodi Rizzini M. Macri N. Madsen M. Marchesotti P. Montagna H. Pruys C. Regenfus P. Rielder A. Rotondi G. Testera A. Variola D.P. van der Werf (ATHENA Collaboration)
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classification ✦ hep-ex nucl-ex
keywords firstantihydrogenatomicantimatterantiprotonathenaboundcold
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Antihydrogen, the atomic bound state of an antiproton and a positron, was produced at low energy for the first time by the ATHENA experiment, marking an important first step for precision studies of atomic antimatter. This paper describes the first production and some subsequent developments.

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