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. Romé, R. Sheldon, M.C. Simon, M. Tajima, V. Toso, S. Ulmer, L. Venturelli, A. Weiser, E. Widmann and Y. Yamazakiet al. (click to show)
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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 $4\times 10^6$ 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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