Speaker
Description
The efficient production of cold antihydrogen atoms, at CERN's Antiproton Decelerator, has opened up the possibility to perform a direct measurement of the Earth's gravitational acceleration g on a purely antimatter system. Indeed, from the experimental point of view, very little is known about the gravitational interaction between matter and antimatter. In particular, the Weak Equivalence Principle (WEP), which is of paramount importance for the General Relativity, has not been directly probed with antimatter yet. This is the primary goal of the AEgIS experiment at CERN: to test the WEP on antimatter, by means of a direct measurement of g on antihydrogen atoms. The idea is to measure the vertical displacement of a pulsed antihydrogen beam passing through a moirè deflectometer, coupled to a position sensitive detector. The milestones achieved so far by AEgIS, on the way to perform this first direct measurement of g on antimatter, are presented.
| Topic | Particle Physics |
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