Published 2012
| Version v1
Publication
The AEGIS experiment at CERN: Measuring the free fall of antihydrogen
Creators
- Kellerbauer A.
- Allkofer Y.
- Amsler C.
- Belov A. S.
- Bonomi G.
- Braunig P.
- Bremer J.
- Brusa R. S.
- Burghart G.
- Cabaret L.
- Canali C.
- Castelli F.
- Chlouba K.
- Cialdi S.
- Comparat D.
- Consolati G.
- Dassa L.
- Di Noto L.
- Donzella A.
- Doser M.
- Dudarev A.
- Eisel T.
- Ferragut R.
- Ferrari G.
- Fontana A.
- Genova P.
- Giammarchi M.
- Gligorova A.
- Gninenko S. N.
- Haider S.
- Hansen J. P.
- Haug F.
- Hogan S. D.
- Jorgensen L. V.
- Kaltenbacher T.
- Krasnicky D.
- Lagomarsino V.
- Mariazzi S.
- Matveev V. A.
- Merkt F.
- Moia F.
- Nebbia G.
- Nedelec P.
- Niinikoski T.
- Oberthaler M. K.
- Perini D.
- Petracek V.
- Prelz F.
- Prevedelli M.
- Regenfus C.
- Riccardi C.
- Rochet J.
- Rohne O.
- Rotondi A.
- Sacerdoti M.
- Sandaker H.
- Spacek M.
- Storey J.
- Testera G.
- Tokareva A.
- Trezzi D.
- Vaccarone R.
- Villa F.
- Warring U.
- Zavatarelli S.
- Zenoni A.
Contributors
Others:
- Kellerbauer, A.
- Allkofer, Y.
- Amsler, C.
- Belov, A. S.
- Bonomi, G.
- Braunig, P.
- Bremer, J.
- Brusa, R. S.
- Burghart, G.
- Cabaret, L.
- Canali, C.
- Castelli, F.
- Chlouba, K.
- Cialdi, S.
- Comparat, D.
- Consolati, G.
- Dassa, L.
- Di Noto, L.
- Donzella, A.
- Doser, M.
- Dudarev, A.
- Eisel, T.
- Ferragut, R.
- Ferrari, G.
- Fontana, A.
- Genova, P.
- Giammarchi, M.
- Gligorova, A.
- Gninenko, S. N.
- Haider, S.
- Hansen, J. P.
- Haug, F.
- Hogan, S. D.
- Jorgensen, L. V.
- Kaltenbacher, T.
- Krasnicky, D.
- Lagomarsino, V.
- Mariazzi, S.
- Matveev, V. A.
- Merkt, F.
- Moia, F.
- Nebbia, G.
- Nedelec, P.
- Niinikoski, T.
- Oberthaler, M. K.
- Perini, D.
- Petracek, V.
- Prelz, F.
- Prevedelli, M.
- Regenfus, C.
- Riccardi, C.
- Rochet, J.
- Rohne, O.
- Rotondi, A.
- Sacerdoti, M.
- Sandaker, H.
- Spacek, M.
- Storey, J.
- Testera, G.
- Tokareva, A.
- Trezzi, D.
- Vaccarone, R.
- Villa, F.
- Warring, U.
- Zavatarelli, S.
- Zenoni, A.
Description
After the first production of cold antihydrogen by the ATHENA and ATRAP experiments ten years ago, new second-generation experiments are aimed at measuring the fundamental properties of this anti-atom. The goal of AEGIS (Antimatter Experiment: Gravity, Interferometry, Spectroscopy) is to test the weak equivalence principle by studying the gravitational interaction between matter and antimatter with a pulsed, cold antihydrogen beam. The experiment is currently being assembled at CERN's Antiproton Decelerator. In AEGIS, antihydrogen will be produced by charge exchange of cold antiprotons with positronium excited to a high Rydberg state (n > 20). An antihydrogen beam will be produced by controlled acceleration in an electric-field gradient (Stark acceleration). The deflection of the horizontal beam due to its free fall in the gravitational field of the earth will be measured with a moiré deflectometer. Initially, the gravitational acceleration will be determined to a precision of 1%, requiring the detection of about 10 5 antihydrogen atoms. In this paper, after a general description, the present status of the experiment will be reviewed. © 2012 Springer Science+Business Media B.V.
Additional details
Identifiers
- URL
- http://hdl.handle.net/11567/964718
- URN
- urn:oai:iris.unige.it:11567/964718
Origin repository
- Origin repository
- UNIGE