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Experiments at CERN | |
Title | GBAR |
Author(s) | Joubert, J ; Jonsell, S B ; Hervieux, P ; Kim, B ; Rousse, J A ; Perez, P ; Belosevic, I ; Kim, S K ; Szymczyk, K S ; Manfredi, G ; Lefort, H ; Debu, P F ; Mansoulie, B ; Noury, J ; Duval, L ; Sacquin, Y ; Kuroda, N ; Tutan, M S ; Tuchming, B ; Liszkay, L F ; Comini, P ; Crivelli, P ; Blumer, P P ; Dijoux, A M ; Roosa, M J ; Rathi, S ; Vallage, B ; Hilico, L ; Garces sobreira rodrigues baptista, G |
Experiment | AD-7 |
Greybook | See AD-7 experiment |
Approved | 30 May 2012 |
Status | Preparation |
Collaboration | GBAR |
Accelerator | AD |
Abstract | The GBAR project aims to perform the first test of the Equivalence Principle with antimatter by measuring the free fall of ultra-cold antihydrogen atoms. The objective is to measure the gravitational acceleration to better than a percent in a first stage, with a long term perspective to reach a much higher precision using gravitational quantum states of antihydrogen. The production of 20 µK atoms proceeds via sympathetic cooling of H${+} ions by Be${+} ions. H${+} ions are produced via a two-step process, involving the interaction of bursts of 10${7} slow antiprotons from the AD-ELENA at CERN with a dense positronium cloud. |
Related document(s) | CERN-SPSC-2011-029 (SPSC-P-342) |