The main scientific goal of the AEGIS experiment (Antimatter Experiment: Gravity, Interferometry, Spectroscopy) is the direct measurement of the Earth’s gravitational acceleration g on a beam of cold antihydrogen (H). The production of an antihydrogen beam is achieved by a charge exchange reaction between Rydberg positronium and cold antiprotons. The H beam will be accelerated up to a velocity of a few 100 m/s and the gravitational acceleration will be obtained by measuring the small vertical deflection of the beam (a few tens μm) using a Moire’ deflectometer.
The AEGIS detection system for gravity measurements / D. Fabris, A. S. Belov, G. Bonomi, I. Boscolo, N. Brambilla, R. S. Brusa, V. M. Byakov, L. Cabaret, C. Canali, C. Carraro, F. Castelli, S. Cialdi, D. Comparat, G. Consolati, L. Dassa, N. Djourelov, M. Doser, G. Drobychev, A. Dudarev, A. Dupasquier, R. Ferragut, G. Ferrari, A. Fischer, P. Folegati, A. Fontana, L. Formaro, M. Lunardon, A. Gervasini, M. G. Giammarchi, S. N. Gninenko, R. Heyne, S. D. Hogan, L.V. Jørgensen, A. Kellerbauer, D. Krasnicky, V. Lagomarsino, F. Leveraro, G. Manuzio, S. Mariazzi, V. A. Matveev, F. Merkt, S. Moretto, C. Morhard, G. Nebbia, P. Nedelec, M. K. Oberthaler, D. Perini, V. Petracek, M. Prevedelli, I. Y. Al-Qaradawi, F. Quasso, C. Riccardi, O. Rohne, S. Pesente, A. Rotondi, M. Spacek, S. Stapnes, D. Sillou, S. V. Stepanov, H. H. Stroke, G. Testera, G. Tino, D. Trezzi, A. V. Turbabin, R. Vaccarone, A. Vairo, G. Viesti, H. Walters, U. Warring, S. Zavatarelli, A. Zenoni, D. S. Zvezhinskij. - In: NUCLEAR PHYSICS. A. - ISSN 0375-9474. - 834:1-4(2010), pp. 751c-753c. [10.1016/j.nuclphysa.2010.01.136]
The AEGIS detection system for gravity measurements
I. Boscolo;F. Castelli;S. Cialdi;A. Gervasini;F. Leveraro;D. Trezzi;
2010
Abstract
The main scientific goal of the AEGIS experiment (Antimatter Experiment: Gravity, Interferometry, Spectroscopy) is the direct measurement of the Earth’s gravitational acceleration g on a beam of cold antihydrogen (H). The production of an antihydrogen beam is achieved by a charge exchange reaction between Rydberg positronium and cold antiprotons. The H beam will be accelerated up to a velocity of a few 100 m/s and the gravitational acceleration will be obtained by measuring the small vertical deflection of the beam (a few tens μm) using a Moire’ deflectometer.
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