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The First Cold Antihydrogen

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arxiv hep-ex/0401039 v1 pith:6BSJ4KCM submitted 2004-01-29 hep-ex nucl-ex

The First Cold Antihydrogen

classification hep-ex nucl-ex
keywords firstantihydrogenatomicantimatterantiprotonathenaboundcold
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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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