학술논문
Production of antihydrogen atoms by 6 keV antiprotons through a positronium cloud
Document Type
Working Paper
Author
Adrich, P.; Blumer, P.; Caratsch, G.; Chung, M.; Cladé, P.; Comini, P.; Crivelli, P.; Dalkarov, O.; Debu, P.; Douillet, A.; Drapier, D.; Froelich, P.; Garroum, N.; Guellati-Khelifa, S.; Guyomard, J.; Hervieux, P-A.; Hilico, L.; Indelicato, P.; Jonsell, S.; Karr, J-P.; Kim, B.; Kim, S.; Kim, E-S.; Ko, Y. J.; Kosinski, T.; Kuroda, N.; Latacz, B. M.; Lee, B.; Lee, H.; Lee, J.; Lim, E.; Liszkay, L.; Lunney, D.; Manfredi, G.; Mansoulié, B.; Matusiak, M.; Nesvizhevsky, V.; Nez, F.; Niang, S.; Ohayon, B.; Park, K.; Paul, N.; Pérez, P.; Regenfus, C.; Reynaud, S.; Roumegou, C.; Roussé, J-Y.; Sacquin, Y.; Sadowski, G.; Sarkisyan, J.; Sato, M.; Schmidt-Kaler, F.; Staszczak, M.; Szymczyk, K.; Tanaka, T. A.; Tuchming, B.; Vallage, B.; Voronin, A.; van der Werf, D. P.; Won, D.; Wronka, S.; Yamazaki, Y.; Yoo, K-H.; Yzombard, P.
Source
European Physical Journal C 83, 1004 (2023)
Subject
Language
Abstract
We report on the first production of an antihydrogen beam by charge exchange of 6.1 keV antiprotons with a cloud of positronium in the GBAR experiment at CERN. The antiproton beam was delivered by the AD/ELENA facility. The positronium target was produced from a positron beam itself obtained from an electron linear accelerator. We observe an excess over background indicating antihydrogen production with a significance of 3-4 standard deviations.