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 moire 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 moire deflectometer coupled to a nuclear emulsion detector.

Testing the Weak Equivalence Principle with an antimatter beam at CERN / Brusa, Rs; Penasa, L; Ravelli, L; Guatieri, F. : (et al. ). - In: JOURNAL OF PHYSICS. CONFERENCE SERIES. - ISSN 1742-6588. - 631:1(2015), p. 012047. ((Intervento presentato al convegno 4th Symposium on Prospects in the Physics of Discrete Symmetries, DISCRETE 2014 tenutosi a King's College London, Strand Campus, gbr nel DEC 02-06, 2014 [10.1088/1742-6596/631/1/012047].

Testing the Weak Equivalence Principle with an antimatter beam at CERN

Brusa, Rs;Penasa, L;Ravelli, L;
2015

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 moire 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 moire deflectometer coupled to a nuclear emulsion detector.
Journal of Physics Conference Series Volume: 631 Article Number: 012047
IOP PUBLISHING LTD, DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
Institute of Physics Publishing
Brusa, Rs; Penasa, L; Ravelli, L; Guatieri, F. : (et al. )
Testing the Weak Equivalence Principle with an antimatter beam at CERN / Brusa, Rs; Penasa, L; Ravelli, L; Guatieri, F. : (et al. ). - In: JOURNAL OF PHYSICS. CONFERENCE SERIES. - ISSN 1742-6588. - 631:1(2015), p. 012047. ((Intervento presentato al convegno 4th Symposium on Prospects in the Physics of Discrete Symmetries, DISCRETE 2014 tenutosi a King's College London, Strand Campus, gbr nel DEC 02-06, 2014 [10.1088/1742-6596/631/1/012047].
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11572/117055
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