{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2023:IO3W2V4MFAPSE5A3YZ34T7D45M","short_pith_number":"pith:IO3W2V4M","schema_version":"1.0","canonical_sha256":"43b76d578c281f22741bc677c9fc7ceb3695da19c4f836c422c67a14dcd73358","source":{"kind":"arxiv","id":"2303.18081","version":1},"attestation_state":"computed","paper":{"title":"Search for an interaction mediated by axion-like particles with ultracold neutrons at the PSI","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A. Weis, B. Clement, B. Lauss, B. Shen, C. B. Crawford, C. B. Doorenbos, D. Pais, D. Ries, D. Rozpedzik, E. Chanel, E. Wursten, F. M. Piegsa, G. Bison, G. Pignol, G. Zsigmond, I. Rien\\\"acker, J. A. Thorne, J. Krempel, J. Zejma, K. Bodek, K. Kirch, K. Svirina, M. Daum, M. Fertl, M. Kasprzak, M. Rawlik, N. Hild, N. J. Ayres, N. Severijns, N. Yazdandoost, N. Ziehl, O. Naviliat-Cuncic, P. A. Koss, P. Flaux, P. G. Harris, P.-J. Chiu, P. MohanMurthy, P. Schmidt-Wellenburg, R. Tavakoli Dinani, S. Emmenegger, S. Roccia, S. Touati, T. Bouillaud, T. Lefort, V. Bondar, V. Kletzl, W. C. Griffith","submitted_at":"2023-03-31T14:17:44Z","abstract_excerpt":"We report on a search for a new, short-range, spin-dependent interaction using a modified version of the experimental apparatus used to measure the permanent neutron electric dipole moment at the Paul Scherrer Institute. This interaction, which could be mediated by axion-like particles, concerned the unpolarized nucleons (protons and neutrons) near the material surfaces of the apparatus and polarized ultracold neutrons stored in vacuum. The dominant systematic uncertainty resulting from magnetic-field gradients was controlled to an unprecedented level of approximately 4 pT/cm using an array of"},"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":"2303.18081","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-ex","submitted_at":"2023-03-31T14:17:44Z","cross_cats_sorted":[],"title_canon_sha256":"e8f56fd09a413a215ac50323d9073ddd9038ff14d97a20d182667c8fb50f2fca","abstract_canon_sha256":"4046fc87a8b047af73d266ed9ef6cf9510e2f13d925d317423c751bc8f9c4e34"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:59:30.978665Z","signature_b64":"gdX3wAf5F4LqJcSgF6Gu+pndGNrCcCNgjFAl/VXi5UGgGKEXFb2S74OJhaQzdocyThRGN7zLsSRye9KKKt1OBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"43b76d578c281f22741bc677c9fc7ceb3695da19c4f836c422c67a14dcd73358","last_reissued_at":"2026-07-05T06:59:30.978161Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:59:30.978161Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Search for an interaction mediated by axion-like particles with ultracold neutrons at the PSI","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A. Weis, B. Clement, B. Lauss, B. Shen, C. B. Crawford, C. B. Doorenbos, D. Pais, D. Ries, D. Rozpedzik, E. Chanel, E. Wursten, F. M. Piegsa, G. Bison, G. Pignol, G. Zsigmond, I. Rien\\\"acker, J. A. Thorne, J. Krempel, J. Zejma, K. Bodek, K. Kirch, K. Svirina, M. Daum, M. Fertl, M. Kasprzak, M. Rawlik, N. Hild, N. J. Ayres, N. Severijns, N. Yazdandoost, N. Ziehl, O. Naviliat-Cuncic, P. A. Koss, P. Flaux, P. G. Harris, P.-J. Chiu, P. MohanMurthy, P. Schmidt-Wellenburg, R. Tavakoli Dinani, S. Emmenegger, S. Roccia, S. Touati, T. Bouillaud, T. Lefort, V. Bondar, V. Kletzl, W. C. Griffith","submitted_at":"2023-03-31T14:17:44Z","abstract_excerpt":"We report on a search for a new, short-range, spin-dependent interaction using a modified version of the experimental apparatus used to measure the permanent neutron electric dipole moment at the Paul Scherrer Institute. This interaction, which could be mediated by axion-like particles, concerned the unpolarized nucleons (protons and neutrons) near the material surfaces of the apparatus and polarized ultracold neutrons stored in vacuum. The dominant systematic uncertainty resulting from magnetic-field gradients was controlled to an unprecedented level of approximately 4 pT/cm using an array of"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.18081","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/2303.18081/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":"2303.18081","created_at":"2026-07-05T06:59:30.978236+00:00"},{"alias_kind":"arxiv_version","alias_value":"2303.18081v1","created_at":"2026-07-05T06:59:30.978236+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.18081","created_at":"2026-07-05T06:59:30.978236+00:00"},{"alias_kind":"pith_short_12","alias_value":"IO3W2V4MFAPS","created_at":"2026-07-05T06:59:30.978236+00:00"},{"alias_kind":"pith_short_16","alias_value":"IO3W2V4MFAPSE5A3","created_at":"2026-07-05T06:59:30.978236+00:00"},{"alias_kind":"pith_short_8","alias_value":"IO3W2V4M","created_at":"2026-07-05T06:59:30.978236+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/IO3W2V4MFAPSE5A3YZ34T7D45M","json":"https://pith.science/pith/IO3W2V4MFAPSE5A3YZ34T7D45M.json","graph_json":"https://pith.science/api/pith-number/IO3W2V4MFAPSE5A3YZ34T7D45M/graph.json","events_json":"https://pith.science/api/pith-number/IO3W2V4MFAPSE5A3YZ34T7D45M/events.json","paper":"https://pith.science/paper/IO3W2V4M"},"agent_actions":{"view_html":"https://pith.science/pith/IO3W2V4MFAPSE5A3YZ34T7D45M","download_json":"https://pith.science/pith/IO3W2V4MFAPSE5A3YZ34T7D45M.json","view_paper":"https://pith.science/paper/IO3W2V4M","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2303.18081&json=true","fetch_graph":"https://pith.science/api/pith-number/IO3W2V4MFAPSE5A3YZ34T7D45M/graph.json","fetch_events":"https://pith.science/api/pith-number/IO3W2V4MFAPSE5A3YZ34T7D45M/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/IO3W2V4MFAPSE5A3YZ34T7D45M/action/timestamp_anchor","attest_storage":"https://pith.science/pith/IO3W2V4MFAPSE5A3YZ34T7D45M/action/storage_attestation","attest_author":"https://pith.science/pith/IO3W2V4MFAPSE5A3YZ34T7D45M/action/author_attestation","sign_citation":"https://pith.science/pith/IO3W2V4MFAPSE5A3YZ34T7D45M/action/citation_signature","submit_replication":"https://pith.science/pith/IO3W2V4MFAPSE5A3YZ34T7D45M/action/replication_record"}},"created_at":"2026-07-05T06:59:30.978236+00:00","updated_at":"2026-07-05T06:59:30.978236+00:00"}