{"paper":{"title":"Measured Properties of an Antihydrogen Beam","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-ex","physics.plasm-ph"],"primary_cat":"physics.ins-det","authors_text":"A. Gligorova, A. Lanz, A. Weiser, C. Amsler, C. Killian, C. Malbrunot, D. J. Murtagh, E. D. Hunter, E. Widmann, G. Costantini, G. Gosta, G. Maero, H. Breuker, L. Venturelli, M. Bumbar, M. Cerwenka, M. C. Simon, M. Giammarchi, M. Hori, M. Leali, M. N. Bayo, M. Rom\\'e, M. Tajima, N. Kuroda, R. E. Sheldon, R. Ferragut, S. Migliorati, S. Ulmer, V. Kraxberger, V. Mascagna, V. Toso, Y. Matsuda","submitted_at":"2025-08-28T07:18:49Z","abstract_excerpt":"We report a factor of $100$ increase in the antihydrogen beam intensity downstream of ASACUSA's Cusp trap: $320$ atoms detected per $15$-minute run. The beam contains many Rydberg atoms, which we selectively ionize to determine their velocity and binding energy. The time of flight signal is modeled using a $1\\mathrm{D}$ Maxwellian velocity distribution with a temperature of $1500\\,\\mathrm{K}$, which is close to the measured antiproton plasma temperature. A numerical simulation reproduces the observed distribution of binding energies and suggests that about $16\\%$ of the atoms may be in the gro"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.02583","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2509.02583/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}