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Titre du document / Document title

Proposed antimatter gravity measurement with an antihydrogen beam

Auteur(s) / Author(s)

KELLERBAUER A. ; AMORETTI M. ; BELOV A. S. ; BONOMI G. ; BOSCOLO I. ; BRUSA R. S. ; BÜCHNER M. ; 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. ; FERRARI G. ; FORGET P. ; FORMARO L. ; GERVASINI A. ; GIAMMARCHI M. G. ; GNINENKO S. N. ; GRIBAKIN G. ; HOGAN S. D. ; JACQUEY M. ; LAGOMARSINO V. ; MANUZIO G. ; MARIAZZI S. ; MATVEEV V. A. ; MEIER J. O. ; MERKT F. ; NEDELEC P. ; OBERTHALER M. K. ; PARI P. ; PREVEDELLI M. ; QUASSO F. ; ROTONDI A. ; SILLOU D. ; STEPANOV S. V. ; STROKE H. H. ; TESTERAI G. ; TINO G. M. ; TRENEC G. ; VAIRO A. ; VIGUE J. ; WALTERS H. ; WARRING U. ; ZAVATARELLI S. ; ZVEZHINSSKIJ D. S. ;

Résumé / Abstract

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.

Revue / Journal Title

Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms    ISSN  0168-583X 

Source / Source

2008, vol. 266, no3, pp. 351-356 [6 page(s) (article)]

Langue / Language

Anglais

Editeur / Publisher

Elsevier, Amsterdam, PAYS-BAS  (1984) (Revue)

Mots-clés d'auteur / Author Keywords

03.75.Dg; 06.30.Gv; 25.43.+t; 34.80.Lx

;

Antimatter; Gravity; Matter interferometry; Deflectometry; Weak equivalence principle; Positronium; Porous insulator

;

Localisation / Location

INIST-CNRS, Cote INIST : 8578 B, 35400018326943.0010

Nº notice refdoc (ud4) : 20182351



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