We present a pulsed “e+kick” scheme for removing ions from a positron plasma, along with other plasma routines used by the ASACUSA-Cusp Collaboration for making antihydrogen in 2023 and 2024. We also report on selected antimatter mixing experiments from 2023. Antiprotons are introduced into a plasma of 4 × 106 positrons with variable RF heating and mixing speed. The effects of these variables on antihydrogen yield are interpreted in a way that is consistent with theoretical predictions. Our observations provide general guidance for stable antihydrogen production in Penning-Malmberg traps.
Best Practices for the Manufacture of Antimatter Atoms / E. Hunter, M. Bumbar, C. Amsler, M. Bayo, H. Breuker, M. Cerwenka, G. Costantini, R. Ferragut, M. Giammarchi, A. Gligorova, G. Gosta, H. Higaki, C. Killian, V. Kraxberger, N. Kuroda, A. Lanz, M. Leali, G. Maero, C. Malbrunot, V. Mascagna, Y. Matsuda, S. Migliorati, D. Murtagh, A. Nanda, L. Nowak, M. Rome, R. Sheldon, M.C. Simon, M. Tajima, V. Toso, S. Ulmer, L. Venturelli, A. Weiser, E. Widmann, Y. Yamazaki. - In: POS PROCEEDINGS OF SCIENCE. - ISSN 1824-8039. - 480:(2025 Jul 07), pp. 021.1-021.13. ( EXA-LEAP : Exotic Atoms and Related Topics Conference and the Low Energy Antiproton Conference :August, 26 - 30 Wien 2024) [10.22323/1.480.0021].
Best Practices for the Manufacture of Antimatter Atoms
G. Gosta;G. Maero;M. Rome;V. Toso;
2025
Abstract
We present a pulsed “e+kick” scheme for removing ions from a positron plasma, along with other plasma routines used by the ASACUSA-Cusp Collaboration for making antihydrogen in 2023 and 2024. We also report on selected antimatter mixing experiments from 2023. Antiprotons are introduced into a plasma of 4 × 106 positrons with variable RF heating and mixing speed. The effects of these variables on antihydrogen yield are interpreted in a way that is consistent with theoretical predictions. Our observations provide general guidance for stable antihydrogen production in Penning-Malmberg traps.
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