Antihydrogen physics: gravitation and spectroscopy in AEgIS

AEgIS (Antimatter experiment: gravity, interferometry, spectroscopy) is an experiment approved by CERN with the goal of studying antihydrogen physics. In AEgIS, antihydrogen will be produced by charge exchange reactions of cold antiprotons with positronium atoms excited in a Rydberg state (n > 20...

Descripción completa

Detalles Bibliográficos
Autores principales: Ferragut, R, Vaccarone, R, Stroke, H H, Dassa, L, Rohne, O, Hogan, S D, Cialdi, S, Al-Qaradawi, I Y, Formaro, L, Sandaker, H, Testera, G, Stepanov, S V, Folegati, P, Morhard, C, Warring, U, Prelz, F, Belov, A S, Bonomi, G, Consolati, G, Ferrari, G, Lagomarsino, V, Krasnicky, D, Drobychev, G, Giammarchi, M G, Heyne, R, Zenoni, A, Castelli, F, Mariazzi, S, Cabaret, L, Fischer, A, Boscolo, I, Sillou, D, Villa, F, Perini, D, Djourelov, N, Zavatarelli, S, Oberthaler, M K, Manuzio, G, Carraro, C, Matveev, V A, Jorgensen, L V, Nedelec, P, Prevedelli, M, Comparat, D, Dupasquier, A, Turbabin, A V, Zvezhinskij, D S, Fontana, A, Kellerbauer, A, Canali, C, Dudarev, A, Petracek, V, Riccardi, C, Nebbia, G, Gninenko, S N, Brusa, R S, Rotondi, A, Sacerdoti, M, Calloni, A, Doser, M, Byakov, V M, Quasso, F, Trezzi, D
Lenguaje:eng
Publicado: 2011
Materias:
Nuclear Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1139/P10-099
http://cds.cern.ch/record/1399901
Descripción
Sumario:AEgIS (Antimatter experiment: gravity, interferometry, spectroscopy) is an experiment approved by CERN with the goal of studying antihydrogen physics. In AEgIS, antihydrogen will be produced by charge exchange reactions of cold antiprotons with positronium atoms excited in a Rydberg state (n > 20). In the first phase of the experiment, controlled acceleration by an electric field gradient (Stark effect) and subsequent measurement of free fall in a Moire deflectometer will allow a test of the weak equivalence principle. In a second phase, the antihydrogen will be slowed, confined, and laser-cooled to perform CPT studies and detailed spectroscopy. In the present work, after a general description of the experiment, the present status of advancement will be reviewed, with special attention to the production and excitation of positronium atoms.

Ejemplares similares