The AEgIS experiment at CERN: measuring antihydrogen free-fall in earth's 
gravitational field to test WEP with antimatter

Brusa, R. S.; Amsler, C.; Ariga, T.; Bonomi, G.; Braeunig, P.; Cabaret, L.; Caccia, M.; Caravita, R.; Castelli, F.; Cerchiari, G.; Comparat, D.; Consolati, G.; Demetrio, A.; Di Noto, L.; Doser, M.; Ereditato, A.; Evans, C.; Ferragut, R.; Fesel, J.; Fontana, A.; Gerber, S.; Giammarchi, M.; Gligorova, A.; Guatieri, F.; Haider, S.; Holmestad, H.; Huse, T.; Kellerbauer, A.; Krasnicky, D.; Lagomarsino, V.; Lansonneur, P.; Lebrun, P.; Malbrunot, C.; Mariazzi, S.; Matveev, V.; Mazzotta, Z.; Nebbia, G.; Nedelec, P.; Oberthaler, M.; Pacifico, N.; Pagano, D.; Penasa, L.; Petracek, V.; Pistillo, C.; Preiz, F.; Prevedelli, M.; Ravelli, L.; Rienaecker, B.; Rohne, O. M.; Rotondi, A.; Sacerdoti, M.; Sandaker, H.; Santoro, R.; Scampoli, P.; Smestad, L.; Sorrentino, F.; Strojek, I. M.; Testera, G.; Tietje, I. C.; Vamosi, S.; Widmann, E.; Yzombard, P.; Zmeskal, J.; Zurlo, N.

doi:10.1088/1742-6596/791/1/012014

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The AEgIS experiment at CERN: measuring antihydrogen free-fall in earth's gravitational field to test WEP with antimatter

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Kellerbauer, A.
Alban Kellerbauer - Emmy Noether Junior Research Group, Junior Research Groups, MPI for Nuclear Physics, Max Planck Society;

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Citation

Brusa, R. S., Amsler, C., Ariga, T., Bonomi, G., Braeunig, P., Cabaret, L., et al. (2017). The AEgIS experiment at CERN: measuring antihydrogen free-fall in earth's gravitational field to test WEP with antimatter. Journal of Physics: Conference Series, 791: 012014. doi:10.1088/1742-6596/791/1/012014.

Cite as: https://hdl.handle.net/21.11116/0000-0001-0095-6

Abstract

The AEgIS (Antimatter Experiment: Gravity, Interferometry, Spectroscopy) experiment is designed with the objective to test the weak equivalence principle with antimatter by studying the free fall of antihydrogen in the Earth's gravitational field. A pulsed cold beam of antihydrogen will be produced by charge exchange between cold Ps excited in Rydberg state and cold antiprotons. Finally the free fall will be measured by a classical moire deflectometer. The apparatus being assembled at the Antiproton Decelerator at CERN will be described, then the advancements of the experiment will be reported: positrons and antiprotons trapping measurements, Ps two-step excitation and a test measurement of antiprotons deflection with a small scale moire deflectometer.