The AEGIS detection system for gravity measurements

Fabris, D.; Belov, A. S.; Bonomi, G.; Boscolo, I.; Brambilla, N.; Brusa, R. S.; Byakov, V. M.; Cabaret, L.; Canali, C.; Carraro, C.; Castelli, F.; Cialdi, S.; Comparat, D.; Consolati, G.; Dassa, L.; Djourelov, N.; Doser, M.; Drobychev, G.; Dudarev, A.; Dupasquier, A.; Ferragut, R.; Ferrari, G.; Fischer, A.; Folegati, P.; Fontana, A.; Formaro, L.; Lunardon, M.; Gervasini, A.; Giammarchi, M. G.; Gninenko, S. N.; Heyne, R.; Hogan, S. D.; Jørgensen, L. V.; Kellerbauer, A.; Krasnicky, D.; Lagomarsino, V.; Leveraro, F.; Manuzio, G.; Mariazzi, S.; Matveev, V. A.; Merkt, F.; Moretto, S.; Morhard, C.; Nebbia, G.; Nedelec, P.; Oberthaler, M. K.; Perini, D.; Petracek, V.; Prevedelli, M.; Al Qaradawi, I. Y.; Quasso, F.; Riccardi, C.; Rohne, O.; Pesente, S.; Rotondi, A.; Spacek, M.; Stapnes, S.; Sillou, D.; Stepanov, S. V.; Stroke, H. H.; Testera, G.; Tino, Guglielmo Maria; Trezzi, D.; Turbabin, A. V.; Vaccarone, R.; Vairo, A.; Viesti, G.; Walters, H.; Warring, U.; Zavatarelli, S.; Zenoni, A.; Zvezhinskij, D. S.

doi:10.1016/j.nuclphysa.2010.01.136

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 (View the MathML source). The production of an antihydrogen beam is achieved by a charge exchange reaction between Rydberg positronium and cold antiprotons. The View the MathML source 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, et al.. - In: NUCLEAR PHYSICS. A. - ISSN 0375-9474. - STAMPA. - 834, issue 1-4:(2010), pp. 751c-753c. [10.1016/j.nuclphysa.2010.01.136]