Evidence For The Production Of Slow Antiprotonic Hydrogen In Vacuum

We present evidence showing how antiprotonic hydrogen, the quasistable antiproton-proton (pbar-p) bound system, has been synthesized following the interaction of antiprotons with the hydrogen molecular ion (H2+) in a nested Penning trap environment. From a careful analysis of the spatial distributio...

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Detalles Bibliográficos
Autores principales: Zurlo, N., Amoretti, M., Amsler, C., Bonomi, G., Carraro, C., Cesar, C.L., Charlton, M., Doser, M., Fontana, A., Funakoshi, R., Genova, P., Hayano, R.S., Jorgensen, L.V., Kellerbauer, A., Lagomarsino, V., Landua, R., Lodi Rizzini, E., Macri, M., Madsen, N., Manuzio, G., Mitchard, D., Montagna, P., Posada, L.G., Pruys, H., Regenfus, C., Rotondi, A., Testera, G., der Werf, D.P.Van, Variola, A., Venturelli, L., Yamazaki, Y.
Lenguaje:eng
Publicado: 2007
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1103/PhysRevLett.97.153401
http://cds.cern.ch/record/1053571
Descripción
Sumario:We present evidence showing how antiprotonic hydrogen, the quasistable antiproton-proton (pbar-p) bound system, has been synthesized following the interaction of antiprotons with the hydrogen molecular ion (H2+) in a nested Penning trap environment. From a careful analysis of the spatial distributions of antiproton annihilation events, evidence is presented for antiprotonic hydrogen production with sub-eV kinetic energies in states around n=70, and with low angular momenta. The slow antiprotonic hydrogen may be studied using laser spectroscopic techniques.

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