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395153.0 [No comment] 05.03.2009 14:14 Released

ID: 395153.0, MPI für Kernphysik / Precision Spectroscopy and Ultracold Ensembles
Proposed antimatter gravity measurement with an antihydrogen beam
Authors:Kellerbauer, A.; Amoretti, M.; Bonomi, G.; Boscolo, I.; Belov, A. S.; Brusa, R. S.; Byakov, V. M.; Cabaret, L.; Canali, C.; Carraro, C.; Castelli, F.; Cialdi, S.; de Combarieu, M.; Comparat, D.; Consolati, G.; Djourelov, N.; Doser, M.; Drobychev, G.; Dupasquier, A.; Büchner, M.; Ferrari, G.; Forget, P.; Formaro, L.; Gervasini, A.; Giammarchi, M. G.; Gninenko, S. N.; Gribakin, G.; Hogan, S. D.; Jacquey, M.; Meier, J. O.; Lagomarsino, V.; Manuzio, G.; Mariazzi, S.; Matveev, V. A.; Merkt, F.; Nedelec, P.; Oberthaler, M. K.; Pari, P.; Prevedelli, M.; Quasso, F.; Trénec, G.; Rotondi, A.; Testera, G.; Sillou, D.; Stepanov, S. V.; Stroke, H. H.; Tino, G. M.; Vairo, A.; Vigué, J.; Walters, H.; Warring, U.; Zavatarelli, S.; Zvezhinskij, D. S.
Corporate body:AEGIS Proto-Collaboration
Date of Publication (YYYY-MM-DD):2008-02
Title of Journal:Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms
Journal Abbrev.:NIM B
Volume (in Journal):266
Issue / Number:3
Title of Issue:Proceedings of the XIV International Workshop on Low Energy Positron and Positronium Physics
Full Name of Issue-Editor(s):G. F. Gribakin, H. R. J. Walters
Start Page:351
End Page:356
Name of Conference/Meeting:XIV International Workshop on Low Energy Positron and Positronium Physics
Place of Conference/Meeting:Reading, UK
(Start) Date of Conference/Meeting
End Date of Conference/Meeting 
Copyright:© 2007 Elsevier B.V. All rights reserved.
Review Status:not specified
Audience:Experts Only
Abstract / Description:The principle of the equivalence of gravitational and inertial mass is one of the cornerstones of general relativity. Considerable efforts have been made and are still being made to verify its validity. A quantum-mechanical formulation of gravity allows for non-Newtonian contributions to the force which might lead to a difference in the gravitational force on matter and antimatter. While it is widely expected that the gravitational interaction of matter and of antimatter should be identical, this assertion has never been tested experimentally. With the production of large amounts of cold antihydrogen at the CERN Antiproton Decelerator, such a test with neutral antimatter atoms has now become feasible. For this purpose, we have proposed to set up the AEGIS experiment at CERN/AD, whose primary goal will be the direct measurement of the Earth’s gravitational acceleration on antihydrogen with a classical Moiré deflectometer.
Free Keywords:Antimatter; Gravity; Matter interferometry; Deflectometry; Weak equivalence principle; Positronium; Porous insulator
Classification / Thesaurus:03.75.Dg; 06.30.Gv; 25.43.+t; 34.80.Lx
External Publication Status:published
Document Type:Conference-Paper
Communicated by:vogt
Affiliations:MPI für Kernphysik/Independent Research Groups/Precision experiments with stored ions and antimatter(A. Kellerbauer)
External Affiliations:Institute for Nuclear Research of the Russian Academy of Sciences, Moscow 117312, Russia
Istituto Nazionale di Fisica Nucleare and Department of Physics, University of Pavia, via Bassi 6, 27100 Pavia, Italy
Istituto Nazionale di Fisica Nucleare and Department of Physics, University of Milan, via Celoria 16, 20133 Milano, Italy
Department of Physics, University of Trento, via Sommarive 14, 38100 Povo, Italy
Laboratoire Collisions Agrégats Réactivité – IRSAMC, Université Paul Sabatier and CNRS UMR 5589, 118 Route de Narbonne, 31062 Toulouse Cedex, France
Institute for Theoretical and Experimental Physics, Moscow 117218, Russia
Laboratoire Aimé Cotton, CNRS II, Campus d’Orsay, 91405 Orsay Cedex, France
Istituto Nazionale di Fisica Nucleare and Department of Physics, University of Genoa, via Dodecaneso 33, 16146 Genova, Italy
Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
Laboratoire de Basse Température du SPEC/DRECAM/DSM, CEA Saclay, 91191 Gif-sur-Yvette Cedex, France
Institute for Nuclear Research and Nuclear Energy, 72 Tzarigradsko Chaussee, 1784 Sofia, Bulgaria
Department of Physics, CERN, 1211 Genève 23, Switzerland
Laboratoire d’Annecy-le-Vieux de Physique des Particules, 9 Chemin de Bellevue, B.p. 110, 74941 Annecy Cedex, France
Istituto Nazionale di Fisica Nucleare and Department of Physics, University of Florence and LENS, CNR-INFM, via Sansone 1, 50019 Firenze, Italy
Department of Applied Mathematics and Theoretical Physics, Queen’s University, University Road, Belfast BT7 1NN, United Kingdom
Laboratorium für Physikalische Chemie, ETH Zürich, 8093 Zürich, Switzerland
Kirchhoff Institute of Physics, University of Heidelberg, Im Neuenheimer Feld 227, 69120 Heidelberg, Germany
Department of Physics, New York University, 4 Washington Place, New York, NY 10003, USA