{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:UWHADQDZLDOSZURFXQLLQX3ICI","short_pith_number":"pith:UWHADQDZ","schema_version":"1.0","canonical_sha256":"a58e01c07958dd2cd225bc16b85f68123db4fb5f4d8979594a66618d55926cba","source":{"kind":"arxiv","id":"2509.02583","version":1},"attestation_state":"computed","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"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2509.02583","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.ins-det","submitted_at":"2025-08-28T07:18:49Z","cross_cats_sorted":["hep-ex","physics.plasm-ph"],"title_canon_sha256":"debcb3a8d7ff2be45383ac3fd18e16e7d47d0bcbc6e88106849dd66b5d8f50cd","abstract_canon_sha256":"c4384025df9a2870e979e35c277ef7c941152aa9bcd7f6e5c93631fc12f63c3e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T12:03:53.722439Z","signature_b64":"ZsS/S5PPLKc/54fMhdQbz0lQpgyQIloj2bK4eNjdCw90/6osPoH+J5t9w79aF4CidsB4LXKtIfIqnuP5HZTGBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a58e01c07958dd2cd225bc16b85f68123db4fb5f4d8979594a66618d55926cba","last_reissued_at":"2026-07-05T12:03:53.721944Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T12:03:53.721944Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2509.02583","created_at":"2026-07-05T12:03:53.722006+00:00"},{"alias_kind":"arxiv_version","alias_value":"2509.02583v1","created_at":"2026-07-05T12:03:53.722006+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2509.02583","created_at":"2026-07-05T12:03:53.722006+00:00"},{"alias_kind":"pith_short_12","alias_value":"UWHADQDZLDOS","created_at":"2026-07-05T12:03:53.722006+00:00"},{"alias_kind":"pith_short_16","alias_value":"UWHADQDZLDOSZURF","created_at":"2026-07-05T12:03:53.722006+00:00"},{"alias_kind":"pith_short_8","alias_value":"UWHADQDZ","created_at":"2026-07-05T12:03:53.722006+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/UWHADQDZLDOSZURFXQLLQX3ICI","json":"https://pith.science/pith/UWHADQDZLDOSZURFXQLLQX3ICI.json","graph_json":"https://pith.science/api/pith-number/UWHADQDZLDOSZURFXQLLQX3ICI/graph.json","events_json":"https://pith.science/api/pith-number/UWHADQDZLDOSZURFXQLLQX3ICI/events.json","paper":"https://pith.science/paper/UWHADQDZ"},"agent_actions":{"view_html":"https://pith.science/pith/UWHADQDZLDOSZURFXQLLQX3ICI","download_json":"https://pith.science/pith/UWHADQDZLDOSZURFXQLLQX3ICI.json","view_paper":"https://pith.science/paper/UWHADQDZ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2509.02583&json=true","fetch_graph":"https://pith.science/api/pith-number/UWHADQDZLDOSZURFXQLLQX3ICI/graph.json","fetch_events":"https://pith.science/api/pith-number/UWHADQDZLDOSZURFXQLLQX3ICI/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/UWHADQDZLDOSZURFXQLLQX3ICI/action/timestamp_anchor","attest_storage":"https://pith.science/pith/UWHADQDZLDOSZURFXQLLQX3ICI/action/storage_attestation","attest_author":"https://pith.science/pith/UWHADQDZLDOSZURFXQLLQX3ICI/action/author_attestation","sign_citation":"https://pith.science/pith/UWHADQDZLDOSZURFXQLLQX3ICI/action/citation_signature","submit_replication":"https://pith.science/pith/UWHADQDZLDOSZURFXQLLQX3ICI/action/replication_record"}},"created_at":"2026-07-05T12:03:53.722006+00:00","updated_at":"2026-07-05T12:03:53.722006+00:00"}