Scientific Results

Exploring the WEP with a pulsed cold beam of antihydrogen

Year: 2012

Authors: Doser M., Amsler C., Belov A., Bonomi G., Braunig P., Bremer J., Brusa R., Burkhart G., Cabaret L., Canali C., Castelli F., Chlouba K., Cialdi S., Comparat D., Consolati G., Di Noto L., Donzella A., Dudarev A., Eisel T., Ferragut R., Ferrari G., Fontana A., Genova P., Giammarchi M., Gligorova A., Gninenko S., Haider S., Hansen JP., Hogan S., Jorgensen L., Kaltenbacher T., Kellerbauer A., Krasnicky D., Lagomarsino V., Mariazzi S., Matveev V., Merkt F., Moia F., Nebbia G., Nedelec P., Oberthaler M., Perini D., Petracek V., Prelz F., Prevedelli M., Regenfus C., Riccardi C., Rohne O., Rotondi A., Sacerdoti M., Sandaker H., Spacek M., Storey J., Testera G., Tokareva A., Trezzi D., Vaccarone R., Villa F., Zavatarelli Z., Zenoni A.

Autors Affiliation: Physics Department, European Organisation for Nuclear Research, 1211 Geneve 23, Switzerland;
Physics Institute, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland;
Institute for Nuclear Research of the Russian Academy of Sciences, 7a 60th October Anniversary Prospect, Moscow 117312, Russia;
Department of Mechanical and Industrial Engineering, University of Brescia, Via Branze 38, 25133 Brescia, Italy;
Kirchhoff Institute for Physics, University of Heidelberg, Im Neuenheimer Feld 227, 69120 Heidelberg, Germany;
Department of Physics, University of Trento, Via Sommarive 14, 38050 Povo (Trento), Italy;
Centre National de la Recherche Scientifique, Laboratoire Aim´e Cotton, Campus dOrsay, 91405 Orsay Cedex, France;
Department of Physics, University of Milano, Via Celoria 16, 20133 Milano Italy;
Department of Physics, Czech Technical University in Prague, Brehova 7, 115 19 Praha 1, Czech Republic;
Department of Physics, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy;
Istituto Nazionale di Ottica, Consiglio Nazionale delle Ricerche, Largo Fermi 6, 50125 Firenze, Italy;
Istituto Nazionale di Fisica Nucleare, Sezione di Pavia, Via Agostino Bassi 6, 27100 Pavia, Italy;
Department of Nuclear and Theoretical Physics, University of Pavia, Via Agostino Bassi 6, 27100 Pavia, Italy;
Istituto Nazionale di Fisica Nucleare, Sezione di Milano, Via Celoria 16, 20133 Milano, Italy;
Institute of Physics and Technology, University of Bergen, Alleegaten 55, 5007 Bergen, Norway;
Laboratory for Physical Chemistry, ETH Zurich, 8093 Zϋrich, Switzerland;
Max Planck Institute for Nuclear Physics, Saupfercheckweg 1, 69117 Heidelberg, Germany;
Department of Physics, University of Genova, Via Dodecaneso 33, 16146 Genova, Italy;
Istituto Nazionale di Fisica Nucleare, Gruppo collegato di Trento, Via Sommarive 14, 38050 Povo (Trento), Italy;
Istituto Nazionale di Fisica Nucleare, Sezione di Padova, Via Marzolo 8, 35131 Padova, Italy;
Institut de Physique Nucléaire de Lyon, Claude Bernard University Lyon 1, 4 Rue Enrico Fermi, 69622 Villeurbanne Cedex, France;
Department of Physics, University of Bologna, Via Irnerio 46, 40126 Bologna, Italy;

Abstract: The AEGIS experiment, currently being set up at the Antiproton Decelerator at CERN, has the objective of studying the free fall of antimatter in the Earth\’s gravitational field by means of a pulsed cold atomic beam of antihydrogen atoms. Both duration of free fall and vertical displacement of the horizontally emitted atoms will be measured, allowing a first test of the WEP with antimatter.

Journal/Review: CLASSICAL AND QUANTUM GRAVITY

Volume: 29 (18)      Pages from: 184009  to: 184009

KeyWords: antihydrogen; gravitation; antiproton; positron;
DOI: 10.1088/0264-9381/29/18/184009

Citations: 54
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