Detection of antihydrogen annihilations with a Si-micro-strip and pure CsI detector

In 2002, the ATHENA collaboration reported the creation and detection of cold (~15 K) antihydrogen atoms [1]. The observation was based on the complete reconstruction of antihydrogen annihilations, simultaneous and spatially correlated annihilations of an antiproton and a positron. Annihilation bypr...

Descripción completa

Detalles Bibliográficos
Autores principales: Johnson, I., Amoretti, M., Amsler, C., Bazzano, G., Bonomi, G., Bouchta, A., Bowe, P., Carraro, C., Cesar, C. L., Charlton, M., Doser, M., Filippini, V., Fontana, A., Fujiwara, M.C., Funakoshi, R., Genova, P., Hangst, J.S., Hayano R., S., Jorgensen L., V., Kellerbauer, A., Lagomarsino, V., Landua, R., Lindelof, D., Rizzini, L., Macri, M., Madsen, N., Manuzio, G., Marchesotti, M., Montagna, P., Pruys, H., Regenfus, C., Riedler, P., Rotondi, A., Rouleau, G., Testera, G., Variola, A., Venturelli, L., Van der Werf, D.P., Zurlo, N.
Lenguaje:eng
Publicado: 2004
Materias:
Other Fields of Physics
Acceso en línea:https://dx.doi.org/10.1142/9789812702708_0069
http://cds.cern.ch/record/704975
Descripción
Sumario:In 2002, the ATHENA collaboration reported the creation and detection of cold (~15 K) antihydrogen atoms [1]. The observation was based on the complete reconstruction of antihydrogen annihilations, simultaneous and spatially correlated annihilations of an antiproton and a positron. Annihilation byproducts are measured with a cylindrically symmetric detector system consisting of two layers of double sided Si-micro-strip modules that are surrounded by 16 rows of 12 pure CsI crystals (13 x 17.5 x 17 mm^3). This paper gives a brief overview of the experiment, the detector system, and event reconstruction. Reference 1. M. Amoretti et al., Nature 419, 456 (2002).

Ejemplares similares