Testing the Weak Equivalence Principle with an antimatter beam at CERN

Abstract : The goal of the AEgIS experiment is to measure the gravitational acceleration of antihydrogen ? the simplest atom consisting entirely of antimatter ? with the ultimate precision of 1%. We plan to verify the Weak Equivalence Principle (WEP), one of the fundamental laws of nature, with an antimatter beam. The experiment consists of a positron accumulator, an antiproton trap and a Stark accelerator in a solenoidal magnetic field to form and accelerate a pulsed beam of antihydrogen atoms towards a free-fall detector. The antihydrogen beam passes through a moir? deflectometer to measure the vertical displacement due to the gravitational force. A position and time sensitive hybrid detector registers the annihilation points of the antihydrogen atoms and their time-of-flight. The detection principle has been successfully tested with antiprotons and a miniature moir? deflectometer coupled to a nuclear emulsion detector.
Type de document :
Communication dans un congrès
4th Symposium on Prospects in the Physics of Discrete Symmetries (DISCRETE 2014), Dec 2014, Londres, United Kingdom. Journal of Physics: Conference Series, 631, pp.012047, 2015, 〈10.1088/1742-6596/631/1/012047〉
Liste complète des métadonnées

http://hal.in2p3.fr/in2p3-01186113
Contributeur : Dominique Girod <>
Soumis le : lundi 24 août 2015 - 13:46:28
Dernière modification le : jeudi 8 février 2018 - 11:07:28

Lien texte intégral

Identifiants

Collections

Citation

M Kimura, S Aghion, C Amsler, A Ariga, T Ariga, et al.. Testing the Weak Equivalence Principle with an antimatter beam at CERN. 4th Symposium on Prospects in the Physics of Discrete Symmetries (DISCRETE 2014), Dec 2014, Londres, United Kingdom. Journal of Physics: Conference Series, 631, pp.012047, 2015, 〈10.1088/1742-6596/631/1/012047〉. 〈in2p3-01186113〉

Partager

Métriques

Consultations de la notice

54