Towards a test of the weak equivalence principle of gravity using anti-hydrogen at CERN

D. Banerjee , F. Biraben (1, 2, 3) , M. Charlton , P. Cladé (1, 2, 3) , P. Comini (4) , P. Crivelli , O. Dalkarov , P. Debu (5) , L. Dodd , A. Douillet (1, 2, 3) , G. Dufour (1, 2, 3) , P. Dupré , S. Eriksson , P. Froelich , P. Grandemange , S. Guellati (1) , R. Guérout (1, 2, 3) , J.M. Heinrich (1, 2, 3) , P.A. Hervieux (6) , L. Hilico (1, 2, 3) , A. Husson (4) , P. Indelicato (1, 2, 3) , S. Jonsell , J.P. Karr (1, 2, 3) , K. Khabarova , S.K. Kim , Y. Kim , N. Kolachevsky , N. Kuroda , A. Lambrecht (1, 2, 3) , A.M. M. Leite (5) , L. Liszkay (5) , P. Lotrus (5) , D. Lunney (4) , N. Madsen , G. Manfredi (6) , B. Mansouli (5) , Y. Matsuda , A. Mohri , G. Mornacchi , V. Nesvizhevsky (7) , F. Nez (1) , P. Pérez (5) , C. Regenfus , J.M. Rey (5) , J.M. Reymond (5) , J.-Y. Roussé (5) , S. Reynaud (1) , A. Rubbia , Y. Sacquin (5) , F. Schmidt-Kaler , N. Sillitoe (1) , M. Staszczak , H. Torii , B. Vallage (5) , M. Valdes (6) , D.P. van Der Werf (5) , A. Voronin , J. Walz , S. Wolf , S. Wronka , Y. Yamazaki

1 LKB [Collège de France] - Laboratoire Kastler Brossel
2 UPMC - Université Pierre et Marie Curie - Paris 6
3 CdF (institution) - Collège de France
4 CSNSM - Centre de Sciences Nucléaires et de Sciences de la Matière
5 DPhP - Département de Physique des Particules (ex SPP)
6 IPHC - Institut Pluridisciplinaire Hubert Curien
7 ILL - Institut Laue-Langevin

The aim of the GBAR (Gravitational Behavior of Antimatter at Rest) experiment is to measure the free fall acceleration of an antihydrogen atom, in the terrestrial gravitational field at CERN and therefore test the Weak Equivalence Principle with antimatter. The aim is to measure the local gravity with a 1% uncertainty which can be reduced to few parts of 10^-3.

Mots clés: Laser transitions; Cooling; Ions; Production; Gravity; Atomic measurements; particle traps; acceleration measurement; antimatter; gravity; hydrogen ions; free fall acceleration; weak equivalence principle; terrestrial gravitational field; antihydrogen atom; Antimatter; Gravitation; talk: Ottawa 2016/07/10; antihydrogen: acceleration; gravitation: local; hydrogen: ion; equivalence principle; CERN Lab; atom; laser

Domaines: Relativité Générale et Cosmologie Quantique [gr-qc]; Physique des Hautes Energies - Expérience [hep-ex]

D. Banerjee, F. Biraben, M. Charlton, P. Cladé, P. Comini, et al.. Towards a test of the weak equivalence principle of gravity using anti-hydrogen at CERN. Conference on Precision Electromagnetic Measurement, Jul 2016, Ottawa, Canada. pp.7540781, ⟨10.1109/CPEM.2016.7540781⟩. ⟨hal-01584632⟩