Slow Antihydrogen

Journal Article · Wed Oct 20 00:00:00 EDT 2004 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1824851· OSTI ID:20630252

Gabrielse, G; Speck, A; Storry, C H; Le Sage, D; Guise, N; Larochelle, P C ^[1]; Grzonka, D; Oelert, W; Schepers, G; Sefzick, T ^[2]; Pittner, H; Herrmann, M; Walz, J ^[3]; Haensch, T W ^[3]; Comeau, D; Hessels, E A ^[4]

---

1. Department of Physics, Harvard University, 17 Oxford Street, Cambridge, MA 02138 (United Kingdom)
2. IKP, Forschungszentrum Juelich GmbH, 52425 Juelich (Germany)
3. Max-Planck-Institut fuer Quantenoptik, Hans-Kopfermann-Strasse 1, 85748 Garching (Germany)
4. York University, Department of Physics and Astronomy, Toronto, Ontario M3J 1P3 (Canada)

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. 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.

• OSTI ID: 20630252
• Journal Information: AIP Conference Proceedings, Vol. 730, Issue 1; Conference: 14. APS topical conference on atomic processes in plasmas, Santa Fe, NM (United States), 19-22 Apr 2004; Other Information: DOI: 10.1063/1.1824851; (c) 2004 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ANTIPROTONS
ATOM COLLISIONS
CHARGE EXCHANGE
CONTROL
COOLING
HADRONIC ATOMS
HYDROGEN
IONIZATION
LASER RADIATION
LASERS
POSITRONS
TRAPS
VELOCITY