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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...

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Main Authors: Ferragut, Rafael O. (Author) , Belov, A. S. (Author) , Bonomi, G. (Author) , Boscolo, I. (Author) , Brusa, R. S. (Author) , Byakov, V. M. (Author) , Cabaret, L. (Author) , Calloni, A. (Author) , Canali, C. (Author) , Carraro, C. (Author) , Castelli, F. (Author) , Cialdi, S. (Author) , Comparat, D. (Author) , Consolati, G. (Author) , Dassa, L. (Author) , Djourelov, N. (Author) , Doser, M. (Author) , Drobychev, G. (Author) , Dudarev, A. (Author) , Dupasquier, A. (Author) , Ferrari, G. (Author) , Fischer, A. (Author) , Folegati, P. (Author) , Fontana, A. (Author) , Formaro, L. (Author) , Giammarchi, M. G. (Author) , Gninenko, S. N. (Author) , Heyne, R. (Author) , Hogan, S. D. (Author) , Jorgensen, L. V. (Author) , Kellerbauer, A. (Author) , Krasnicky, D. (Author) , Lagomarsino, V. (Author) , Manuzio, G. (Author) , Mariazzi, S. (Author) , Matveev, V. A. (Author) , Morhard, C. (Author) , Nebbia, G. (Author) , Nedelec, P. (Author) , Oberthaler, Markus K. (Author) , Perini, D. (Author) , Petracek, V. (Author) , Prelz, F. (Author) , Prevedelli, M. (Author) , Al-Qaradawi, I. Y. (Author) , Quasso, F. (Author) , Riccardi, C. (Author) , Rohne, O. (Author) , Rotondi, A. (Author) , Sacerdoti, M. (Author) , Sandaker, H. (Author) , Sillou, D. (Author) , Stepanov, S. V. (Author) , Stroke, H. H. (Author) , Testera, G. (Author) , Trezzi, D. (Author) , Turbabin, A. V. (Author) , Vaccarone, R. (Author) , Villa, F. (Author) , Warring, U. (Author) , Zavatarelli, S. (Author) , Zenoni, A. (Author) , Zvezhinskij, D. S. (Author)
Format: Article (Journal)
Language:English
Published: January 2011
In: Canadian journal of physics
Year: 2011, Volume: 89, Issue: 1, Pages: 17-24
ISSN:1208-6045
DOI:10.1139/P10-099
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1139/P10-099
Verlag, lizenzpflichtig, Volltext: https://cdnsciencepub.com/doi/10.1139/P10-099
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Author Notes:R. Ferragut, A.S. Belov, G. Bonomi, I. Boscolo, R.S. Brusa, V.M. Byakov, L. Cabaret, A. Calloni, C. Canali, C. Carraro, F. Castelli, S. Cialdi, D. Comparat, G. Consolati, L. Dassa, N. Djourelov, M. Doser, G. Drobychev, A. Dudarev, A. Dupasquier, G. Ferrari, A. Fischer, P. Folegati, A. Fontana, L. Formaro, M.G. Giammarchi, S.N. Gninenko, R. Heyne, S.D. Hogan, L.V. Jorgensen, A. Kellerbauer, D. Krasnicky, V. Lagomarsino, G. Manuzio, S. Mariazzi, V.A. Matveev, C. Morhard, G. Nebbia, P. Nedelec, M.K. Oberthaler, D. Perini, V. Petracek, F. Prelz, M. Prevedelli, I.Y. Al-Qaradawi, F. Quasso, C. Riccardi, O. Rohne, A. Rotondi, M. Sacerdoti, H. Sandaker, D. Sillou, S.V. Stepanov, H.H. Stroke, G. Testera, D. Trezzi, A.V. Turbabin, R. Vaccarone, F. Villa, U. Warring, S. Zavatarelli, A. Zenoni, D.S. Zvezhinskij
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Summary: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 Moiré 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.
AEgIS (Expérience sur l’Antimatière: Gravité, Interférométrie, Spectrométrie) est une expérience approuvée par le CERN qui vise une étude globale de la physique de l’anti-hydrogène. Dans AEgIS, l’anti-hydrogène sera produit par des réactions d’échange de charges d’anti-protons froids avec des atomes de positronium excités dans un état de Rydberg (n > 20). Dans la première phase de l’expérience, l’accélération est contrôlée par un gradient de champ électrique (effet Stark); une mesure subséquente en chute libre dans un déflectomètre de Moiré nous fournira un test du principe d’équivalence faible. Dans une deuxième phase, l’anti-hydrogène sera ralenti, confiné et refroidi par laser pour des études de CPT et de spectroscopie de précision. Après une description générale de l’expérience, nous passons ici en revue l’état d’avancement des travaux en accordant une attention particulière à la production et l’excitation des atomes de positronium.
Item Description:Gesehen am 05.05.2022
Physical Description:Online Resource
ISSN:1208-6045
DOI:10.1139/P10-099

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