Production and detection of cold anti-hydrogen atoms: A first step towards high precision CPT test

Observations of anti-hydrogen in small quantities have been reported at CERN and at FermiLab, but these experiments were not suited to spectroscopy experiments. In 2002 the ATHENA collaboration reported the production and detection of very low energy anti-hydrogen atoms produced in cryogenic environ...

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Detalles Bibliográficos
Autores principales: Variola, A, Amoretti, M, Bonomi, G, Boutcha, A, Bowe, P, Carraro, C, Cesar, C L, Charlton, M, Doser, Michael, Filippini, V, Fontana, A, Fujiwara, M C, Funakoshi, R, Genova, P, Hangst, J S, Hayano, R S, Jørgensen, L V, Lagomarsino, V, Landua, Rolf, Lindelöf, D, Lodi Rizzini, E, Macri, M, Madsen, N, Manuzio, G, Montagna, P, Pruys, H S, Regenfus, C, Rotondi, A, Riedler, P, Testera, G, Van der Werf, D P
Lenguaje:eng
Publicado: 2003
Materias:
Other Fields of Physics
Acceso en línea:https://dx.doi.org/10.1063/1.1664227
http://cds.cern.ch/record/818451
Descripción
Sumario:Observations of anti-hydrogen in small quantities have been reported at CERN and at FermiLab, but these experiments were not suited to spectroscopy experiments. In 2002 the ATHENA collaboration reported the production and detection of very low energy anti-hydrogen atoms produced in cryogenic environment. This is the first major step in the study of antiatom's internal structure and it can lead to a high precision test of the CPT fundamental symmetry. The method of production and detection of cold anti-hydrogen will be introduced. The absolute rate of anti-hydrogen production and the signal to background ratio in the ATHENA experiment will be discussed. (7 refs) .

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