Speaker
Description
The AEgIS (Antimatter Experiment: gravity, Interferometry, Spectroscopy) is a CERN based experiment with the central aim to measure directly the gravitational acceleration of antihydrogen. Antihydrogen atoms will be produced via charge exchange reactions which will consist of Rydberg-excited positronium atoms sent to cooled antiprotons within an electromagnetic trap. The resulting Rydberg antihydrogen atoms would then be horizontally accelerated by an electric field gradient (Stark effect), they will then pass through a moiré deflectometer. The vertical deflections caused by the Earth gravitational field will test for the first time the Weak Equivalence principle for antimatter. Detection will be undertaken via a position sensitive detector. Around 10^3 antihydrogen atoms are needed for the gravitational measurement to be undertaken.
The present status, current achievements and results will be presented, with special attention to the strategies to produce positronium atoms in different geometries.
Summary
Invited talk AEgIS
| Topic: | Topic: Cosmology, Astrophysics, Gravity, Mathematical Physics |
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