| Article | |
| Report number | arXiv:2205.04530 |
| Title | Positron accumulation in the GBAR experiment |
| Author(s) |
Blumer, P. (ETH, Zurich (main)) ; Charlton, M. (Swansea U.) ; Chung, M. (UNIST, Ulsan) ; Clade, P. (Paris, Lab. Kastler Brossel) ; Comini, P. (IRFU, Saclay) ; Crivelli, P. (ETH, Zurich (main)) ; Dalkarov, O. (MTI, Moscow) ; Debu, P. (IRFU, Saclay) ; Dodd, L. (Swansea U.) ; Douillet, A. (Paris, Lab. Kastler Brossel ; U. Evry) ; Guellati, S. (Paris, Lab. Kastler Brossel) ; Hervieux, P. -A (IPCMS, Strasbourg) ; Hilico, L. (Paris, Lab. Kastler Brossel ; U. Evry) ; Husson, A. (IJCLab, Orsay) ; Indelicato, P. (Paris, Lab. Kastler Brossel) ; Janka, G. (ETH, Zurich (main)) ; Jonsell, S. (Stockholm U.) ; Karr, J.-P. (Paris, Lab. Kastler Brossel ; U. Evry) ; Kim, B.H. (Seoul Natl. U.) ; Kim, E.S. (Korea U.) ; Kim, S.K. (Seoul Natl. U.) ; Ko, Y. (IBS, Daejeon) ; Kosinski, T. (NCBJ, Swierk) ; Kuroda, N. (Tokyo U.) ; Latacz, B.M. (IRFU, Saclay ; Wako, RIKEN) ; Lee, B. (Seoul Natl. U.) ; Lee, H. (Seoul Natl. U.) ; Lee, J. (NCBJ, Swierk) ; Leitee, A.M.M. (IRFU, Saclay) ; Leveque, K. (IPCMS, Strasbourg) ; Lim, E. (Sejong U.) ; Liszkay, L. (IRFU, Saclay) ; Lotrus, P. (IRFU, Saclay) ; Lunney, D. (IJCLab, Orsay) ; Manfredi, G. (IPCMS, Strasbourg) ; Mansoulie, B. (IRFU, Saclay) ; Matusiak, M. (NCBJ, Swierk) ; Mornacchi, G. (CERN) ; Nesvizhevsky, V. (Laue-Langevin Inst.) ; Nez, F. (Paris, Lab. Kastler Brossel) ; Niang, S. (IJCLab, Orsay) ; Nishi, R. (Tokyo U.) ; Ohayon, B. (ETH, Zurich (main)) ; Park, K. (Seoul Natl. U.) ; Paul, N. (Paris, Lab. Kastler Brossel) ; Perez, P. (IRFU, Saclay) ; Procureur, S. (IRFU, Saclay) ; Radics, B. (ETH, Zurich (main)) ; Regenfus, C. (ETH, Zurich (main)) ; Reymond, J.-M. (IRFU, Saclay) ; Reynaud, S. (Paris, Lab. Kastler Brossel) ; Rousse, J.-Y. (IRFU, Saclay) ; Rousselle, O. (Paris, Lab. Kastler Brossel) ; Rubbia, A. (ETH, Zurich (main)) ; Rzadkiewicl, J. (NCBJ, Swierk) ; Sacquin, Y. (IRFU, Saclay) ; Schmidt-Kaler, F. (Mainz U.) ; Staszczak, M. (NCBJ, Swierk) ; Szymczyk, K. (NCBJ, Swierk) ; Tanaka, T. (Tokyo U.) ; Tuchming, B. (IRFU, Saclay) ; Vallage, B. (IRFU, Saclay) ; Voronin, A. (MTI, Moscow) ; van der Werf, D.P. (Swansea U.) ; Wolf, S. (Mainz U.) ; Won, D. (Seoul Natl. U.) ; Wronka, S. (NCBJ, Swierk) ; Yamazaki, Y. (NCBJ, Swierk) ; Yoo, K.H. (UNIST, Ulsan) ; Yzombard, P. (Paris, Lab. Kastler Brossel) ; Baker, C.J. (Swansea U.) |
| Publication | 2022-07-25 |
| Imprint | 2022-05-09 |
| Number of pages | 28 |
| In: | Nucl. Instrum. Methods Phys. Res., A 1040 (2022) 167263 |
| DOI | 10.1016/j.nima.2022.167263 (publication) |
| Subject category | physics.plasm-ph ; Other Fields of Physics |
| Accelerator/Facility, Experiment | CERN AD ; GBAR AD-7 |
| Abstract | We present a description of the GBAR positron (e+) trapping apparatus, which consists of a three stage Buffer Gas Trap (BGT) followed by a High Field Penning Trap (HFT), and discuss its performance. The overall goal of the GBAR experiment is to measure the acceleration of the neutral antihydrogen (H) atom in the terrestrial gravitational field by neutralising a positive antihydrogen ion (H+), which has been cooled to a low temperature, and observing the subsequent H annihilation following free fall. To produce one H+ ion, about 10^10 positrons, efficiently converted into positronium (Ps), together with about 10^7 antiprotons (p), are required. The positrons, produced from an electron linac-based system, are accumulated first in the BGT whereafter they are stacked in the ultra-high vacuum HFT, where we have been able to trap 1.4(2) x 10^9 positrons in 1100 seconds. |
| Copyright/License | preprint: (License: CC BY-NC-ND 4.0) publication: Crown Copyright © 2022 Published by Elsevier B.V. |
Corresponding record in: Inspire
Record created 2022-05-12, last modified 2024-07-08
