Open AccessThe AEgIS experiment at CERN: measuring antihydrogen free-fall in earth’s gravitational field to test WEP with antimatter
Author(s) -
R. S. Brusa,
C. Amsler,
T. Ariga,
G. Bonomi,
P. Bräunig,
L. Cabaret,
M. Caccia,
R. Caravita,
F. Castelli,
G. Cerchiari,
D. Comparat,
G. Consolati,
A. Demetrio,
L. Di Noto,
M. Doser,
A. Ereditato,
C. Evans,
R. Ferragut,
J. Fesel,
A. Fontana,
S. Gerber,
M. Giammarchi,
A. Gligorova,
F. Guatieri,
S. Haider,
H. Holmestad,
T. Huse,
A. Kellerbauer,
D. Krasnický,
V. Lagomarsino,
P. Lansonneur,
P. Lebrun,
C. Malbrunot,
S. Mariazzi,
V. Matveev,
Z. Mazzotta,
G. Nebbia,
P. Nédélec,
Markus K. Oberthaler,
N. Pacifico,
D. Pagano,
L. Penasa,
V. Petráček,
C. Pistillo,
F. Prelz,
M. Prevedelli,
L. Ravelli,
B. Rienäcker,
O. Røhne,
A. Rotondi,
M. Sacerdoti,
H. Sandaker,
R. Santoro,
P. Scampoli,
L. Smestad,
F. Sorrentino,
I. Strojek,
G. Testera,
I. C. Tietje,
S. Vamosi,
E. Widmann,
P. Yzombard,
J. Zmeskal,
N. Zurlo
Publication year - 2017
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/791/1/012014
Subject(s) - antihydrogen , antimatter , antiproton , physics , nuclear physics , large hadron collider , positron , proton , electron
International audienceThe 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 moiré 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 moiré deflectometer