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Spatial distribution of cold antihydrogen formation
- Source :
- Madsen, N, Amoretti, M, Amsler, C, Bonomi, G, Bowe, P D, Carraro, C, Cesar, C L, Charlton, M, Doser, M, Fontana, A, Fujiwara, M C, Funakoshi, R, Genova, P, Hangst, J S, Hayano, R S, Jørgensen, L V, Kellerbauer, A, Lagomarsino, V, Lodi-Rizzini, E, Landua, R, Macri, M, Mitchard, D, Montagna, P, Pruys, H, Regenfus, C, Rotondi, A, Testera, G, Variola, A, Venturelli, L, van der Werf, D P, Yamazaki, Y & Zurlo, N 2005, ' Spatial Distribution of Cold Antihydrogen Formation ', Physical Review Letters, vol. 94 .
- Publication Year :
- 2005
-
Abstract
- Antihydrogen is formed when antiprotons are mixed with cold positrons in a nested Penning trap. We present experimental evidence, obtained using our antihydrogen annihilation detector, that the spatial distribution of the emerging antihydrogen atoms is independent of the positron temperature and axially enhanced. This indicates that antihydrogen is formed before the antiprotons are in thermal equilibrium with the positron plasma. This result has important implications for the trapping and spectroscopy of antihydrogen.
- Subjects :
- Physics
Physics::General Physics
Annihilation
General Physics and Astronomy
Plasma
Penning trap
XX
Nuclear physics
Positron
Physics::Plasma Physics
Ultracold atom
Antiproton
Antimatter
Physics::Atomic and Molecular Clusters
High Energy Physics::Experiment
Physics::Atomic Physics
Atomic physics
Antihydrogen
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Madsen, N, Amoretti, M, Amsler, C, Bonomi, G, Bowe, P D, Carraro, C, Cesar, C L, Charlton, M, Doser, M, Fontana, A, Fujiwara, M C, Funakoshi, R, Genova, P, Hangst, J S, Hayano, R S, Jørgensen, L V, Kellerbauer, A, Lagomarsino, V, Lodi-Rizzini, E, Landua, R, Macri, M, Mitchard, D, Montagna, P, Pruys, H, Regenfus, C, Rotondi, A, Testera, G, Variola, A, Venturelli, L, van der Werf, D P, Yamazaki, Y & Zurlo, N 2005, ' Spatial Distribution of Cold Antihydrogen Formation ', Physical Review Letters, vol. 94 .
- Accession number :
- edsair.doi.dedup.....7a7605d12def1c22271142bb3d7c9181