Slow Antihydrogen

Slow antihydrogen is now produced by two different production methods. In Method I, large numbers of H atoms are produced during positron-cooling of antiprotons within a nested Penning trap (Fig. 1). In a just-demonstrated Method II, lasers control the production of antihydrogen atoms via charge exc...

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Bibliographic Details
Published in:AIP conference proceedings 2004-01, Vol.730 (1), p.3-12
Main Authors: Gabrielse, G, Speck, A, Storry, C H, Le Sage, D, Guise, N, Larochelle, P C, Grzonka, D, Oelert, W, Schepers, G, Sefzick, T, Pittner, H, Herrmann, M, Walz, J, Hansch, T W, Comeau, D, Hessels, E A
Format: Article
Language:English
Subjects:
ANTIPROTONS
ATOM COLLISIONS
ATOMIC AND MOLECULAR PHYSICS
CHARGE EXCHANGE
CONTROL
COOLING
HADRONIC ATOMS
HYDROGEN
IONIZATION
LASER RADIATION
LASERS
POSITRONS
TRAPS
VELOCITY
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Summary:Slow antihydrogen is now produced by two different production methods. In Method I, large numbers of H atoms are produced during positron-cooling of antiprotons within a nested Penning trap (Fig. 1). In a just-demonstrated Method II, lasers control the production of antihydrogen atoms via charge exchange collisions. Field ionization detection makes it possible to probe the internal structure of the antihydrogen atoms being produced - most recently revealing atoms that are too tightly bound to be well described by the guiding center atom approximation. The speed of antihydrogen atoms has recently been measured for the first time. After the requested overview, the recent developments are surveyed.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.1824851