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1.
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The Gbar project, or how does antimatter fall?
/ Indelicato, Paul (Paris, Lab. Kastler Brossel) ; Chardin, G (CSNSM, Orsay) ; Grandemange, P (CSNSM, Orsay) ; Lunney, D (CSNSM, Orsay) ; Manea, V (CSNSM, Orsay) ; Badertscher, A (Zurich, ETH) ; Crivelli, P (Zurich, ETH) ; Curioni, A (Zurich, ETH) ; Marchionni, A (Zurich, ETH) ; Rossi, B (Zurich, ETH) et al.
The Einstein classical Weak Equivalence Principle states that the trajectory of a particle is independent of its composition and internal structure when it is only submitted to gravitational forces. This fundamental principle has never been directly tested with antimatter. [...]
2014 - 10 p.
- Published in : Hyperfine Interact. 228 (2014) 141-150
In : 11th International Conference on Low Energy Antiproton Physics, Uppsala, Sweden, 10 - 15 Jun 2013, pp.141-150
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2.
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Linac-based positron source and generation of a high density positronium cloud for the GBAR experiment
/ Liszkay, L (IRFU, Saclay) ; Comini, P (IRFU, Saclay) ; Corbel, C (Ecole Polytechnique) ; Debu, P (IRFU, Saclay) ; Dupré, P (CSNSM, Orsay) ; Grandemange, P (CSNSM, Orsay) ; Pérez, P (IRFU, Saclay) ; Rey, J -M (IRFU, Saclay) ; Ruiz, N (IRFU, Saclay) ; Sacquin, Y (IRFU, Saclay)
The aim of the recently approved GBAR (Gravitational Behaviour of Antihydrogen at Rest) experiment is to measure the acceleration of neutral antihydrogen atoms in the gravitational field of the Earth. The experimental scheme requires a high density positronium cloud as a target for antiprotons, provided by the Antiproton Decelerator (AD) – Extra Low Energy Antiproton Ring (ELENA) facility at CERN. [...]
2013 - 5 p.
- Published in : J. Phys. : Conf. Ser. 443 (2013) 012006
Fulltext: PDF;
In : 16th International Conference on Positron Annihilation, Bristol, UK, 19 - 24 Aug 2012, pp.012006
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3.
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Positron production using a 9 MeV electron linac for the GBAR experiment
/ Charlton, M. (Swansea U.) ; Choi, J.J. (Seoul Natl. U., Dept. Phys. Astron.) ; Chung, M. (UNIST, Ulsan) ; Cladé, P. (Paris, Lab. Kastler Brossel) ; Comini, P. (IRFU, Saclay) ; Crépin, P.P. (Paris, Lab. Kastler Brossel) ; Crivelli, P. (Zurich, ETH) ; Dalkarov, O. (Lebedev Inst.) ; Debu, P. (IRFU, Saclay) ; Dodd, L. (Swansea U.) et al.
For the GBAR (Gravitational Behaviour of Antihydrogen at Rest) experiment at CERN's Antiproton Decelerator (AD) facility we have constructed a source of slow positrons, which uses a low-energy electron linear accelerator (linac). The driver linac produces electrons of 9 MeV kinetic energy that create positrons from bremsstrahlung-induced pair production. [...]
arXiv:2006.05966.-
2021-01-01 - 33 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 985 (2021) 164657
Fulltext: PDF;
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4.
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Towards a test of the weak equivalence principle of gravity using anti-hydrogen at CERN
/ Banerjee, D (ETH, Zurich (main)) ; Biraben, F (Paris, Lab. Kastler Brossel) ; Charlton, M (Swansea U.) ; Cladé, P (Paris, Lab. Kastler Brossel) ; Comini, P (CSNSM, Orsay) ; Crivelli, P (ETH, Zurich (main)) ; Dalkarov, O (Lebedev Inst.) ; Debu, P (IRFU, SPP, Saclay) ; Dodd, L (Swansea U.) ; Douillet, A (Paris, Lab. Kastler Brossel) et al.
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..
2016 - 2 p.
- Published in : 10.1109/CPEM.2016.7540781
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5.
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The GBAR antimatter gravity experiment
/ Pérez, P (IRFU, SPhN, Saclay) ; Banerjee, D (Zurich, ETH) ; Biraben, F (Paris, Lab. Kastler Brossel) ; Brook-Roberge, D (IRFU, SPhN, Saclay) ; Charlton, M (Swansea U.) ; Cladé, P (Paris, Lab. Kastler Brossel) ; Comini, P (IRFU, SPhN, Saclay) ; Crivelli, P (Zurich, ETH) ; Dalkarov, O (Lebedev Inst.) ; Debu, P (IRFU, SPhN, Saclay) et al.
The GBAR project (Gravitational Behaviour of Anti hydrogen at Rest) at CERN, aims to measure the free fall acceleration of ultracold neutral anti hydrogen atoms in the terrestrial gravitational field. The experiment consists preparing anti hydrogen ions (one antiproton and two positrons) and sympathetically cooling them with Be$^{+}$ ions to less than 10 μK. [...]
2015 - 7 p.
- Published in : Hyperfine Interact. 233 (2015) 21-27
In : 5th International Conference on Exotic Atoms and Related Topics, Vienna, Austria, 15 - 19 Sep 2014, pp.21-27
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6.
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AD-7/GBAR status report for the 2015 CERN SPSC
/ GBAR Collaboration
The GBAR experiment will use one of the low energy antiproton beam lines from the ELENA ring that is being prepared and scheduled to start operating in 2017 [...]
CERN-SPSC-2015-001 ; SPSC-SR-151.
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2015.
Fulltext
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7.
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Performance tests of prototype high field HTS coils in Grenoble
/ Miyoshi, Y (NIMS-ICYS, Tsukuba) ; Badel, A (U. Grenoble Alpes) ; Chaud, X (U. Grenoble Alpes) ; Benkel, T (U. Grenoble Alpes) ; Vincent, B (U. Grenoble Alpes) ; Tixador, P (U. Grenoble Alpes) ; Marpaud, J (U. Grenoble Alpes) ; Debray, F (U. Grenoble Alpes) ; Lécrevisse, T (IRFU, Saclay ; CEA, DSM, Saclay) ; Devaux, M (IRFU, Saclay ; CEA, DSM, Saclay) et al.
CERN-ACC-2014-0234.-
Geneva : CERN, 2014
Fulltext: PDF;
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8.
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Status of the Linac based positron source at Saclay
/ Rey, J -M (IRFU, Saclay) ; Coulloux, G (IRFU, Saclay) ; Debu, P (IRFU, Saclay) ; Dzitko, H (CEA DAM) ; Hardy, P (IRFU, Saclay) ; Liszkay, L (IRFU, Saclay) ; Lotrus, P (IRFU, Saclay) ; Muranaka, T (CERN) ; Noel, C (CEA DAM) ; Perez, P (IRFU, Saclay) et al.
Low energy positron beams are of major interest for fundamental science and materials science. IRFU has developed and built a slow positron source based on a compact, low energy (4.3 MeV) electron linac. [...]
2013
- Published in : J. Phys.: Conf. Ser. 443 (2013) 012077
In : 16th International Conference on Positron Annihilation, Bristol, UK, 19 - 24 Aug 2012, pp.012077
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9.
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10.
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AD-7/GBAR status report for the 2014 CERN SPSC
/ GBAR Collaboration
A status report is given on the preparations and tests in view of the AD-7 / GBAR experiment at the future ELENA facility to be constructed at the CERN Antiproton Decelerator..
CERN-SPSC-2014-011 ; SPSC-SR-136.
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2014.
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