Production of antihydrogen atoms by 6 keV antiprotons through a positronium cloud

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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...

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Detalles Bibliográficos
Autores principales: 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.
Lenguaje:eng
Publicado: 2023
Materias:
physics.ins-det
Detectors and Experimental Techniques
hep-ex
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/2866749
Descripción
Sumario: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.

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