{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:OROG7F63KTNR66LRRP7NLRW7BQ","short_pith_number":"pith:OROG7F63","schema_version":"1.0","canonical_sha256":"745c6f97db54db1f79718bfed5c6df0c24d1fc580cec351939061a37040bb8be","source":{"kind":"arxiv","id":"2412.09652","version":2},"attestation_state":"computed","paper":{"title":"Probing Millicharged Particles at an Electron Beam Dump with Ultralow-Threshold Sensors","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Hailin Xu, Megan McDuffie, Peiran Li, Rouven Essig, Ryan Plestid, Zhen Liu","submitted_at":"2024-12-11T16:27:22Z","abstract_excerpt":"We propose to search for millicharged particles produced in high-intensity electron beam dumps using small ultralow-threshold sensors. As a concrete example, we consider a Skipper-CCD placed behind the beam dump in Hall A at Jefferson Lab. We compute the millicharged particle flux, including both electromagnetic cascade and meson productions emanating from an aluminum target. We find that the sensitivity of a modest 2x14 array of Skipper-CCDs can exceed the sensitivity of all existing searches for millicharged particle masses below 1.5 GeV, and is either competitive or world leading when compa"},"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":"2412.09652","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2024-12-11T16:27:22Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"f388b39434ce76b54e521adf5945370ecd1ef5a37eeeb369be0a783583c6c3cf","abstract_canon_sha256":"42e09ca65ed431f259c8f9c0a4f01a85e6307fabd43844b11211f5f4ca20e45e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:22:54.866935Z","signature_b64":"EgryfHHua4Hl0JXbCXbDR0G1XCIPkgR7yWK7fKL0ZncDCGGt6+Y5FMc7NzlN35tAGIKRu6vJndFi/YEC1fHDDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"745c6f97db54db1f79718bfed5c6df0c24d1fc580cec351939061a37040bb8be","last_reissued_at":"2026-07-05T10:22:54.866082Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:22:54.866082Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Probing Millicharged Particles at an Electron Beam Dump with Ultralow-Threshold Sensors","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Hailin Xu, Megan McDuffie, Peiran Li, Rouven Essig, Ryan Plestid, Zhen Liu","submitted_at":"2024-12-11T16:27:22Z","abstract_excerpt":"We propose to search for millicharged particles produced in high-intensity electron beam dumps using small ultralow-threshold sensors. As a concrete example, we consider a Skipper-CCD placed behind the beam dump in Hall A at Jefferson Lab. We compute the millicharged particle flux, including both electromagnetic cascade and meson productions emanating from an aluminum target. We find that the sensitivity of a modest 2x14 array of Skipper-CCDs can exceed the sensitivity of all existing searches for millicharged particle masses below 1.5 GeV, and is either competitive or world leading when compa"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.09652","kind":"arxiv","version":2},"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/2412.09652/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":"2412.09652","created_at":"2026-07-05T10:22:54.866182+00:00"},{"alias_kind":"arxiv_version","alias_value":"2412.09652v2","created_at":"2026-07-05T10:22:54.866182+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.09652","created_at":"2026-07-05T10:22:54.866182+00:00"},{"alias_kind":"pith_short_12","alias_value":"OROG7F63KTNR","created_at":"2026-07-05T10:22:54.866182+00:00"},{"alias_kind":"pith_short_16","alias_value":"OROG7F63KTNR66LR","created_at":"2026-07-05T10:22:54.866182+00:00"},{"alias_kind":"pith_short_8","alias_value":"OROG7F63","created_at":"2026-07-05T10:22:54.866182+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":5,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2606.11310","citing_title":"Direct Detection of Millicharged Particles from Supernovae","ref_index":22,"is_internal_anchor":false},{"citing_arxiv_id":"2606.09998","citing_title":"Constraints and Projections for Millicharged Dark Matter in the Sun with Water Cherenkov Neutrino Detectors","ref_index":34,"is_internal_anchor":false},{"citing_arxiv_id":"2511.02023","citing_title":"Underground Production of Electromagnetic Dark States by MeV-scale Electron Beams and Detection with CCDs","ref_index":7,"is_internal_anchor":false},{"citing_arxiv_id":"2605.13964","citing_title":"A New Source of Millicharged Particles: Secondary Showers in the LHC Forward Absorber","ref_index":47,"is_internal_anchor":false},{"citing_arxiv_id":"2604.20385","citing_title":"Prospects of boosted magnetic dipole inelastic fermion dark matter at ILC-BDX","ref_index":42,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/OROG7F63KTNR66LRRP7NLRW7BQ","json":"https://pith.science/pith/OROG7F63KTNR66LRRP7NLRW7BQ.json","graph_json":"https://pith.science/api/pith-number/OROG7F63KTNR66LRRP7NLRW7BQ/graph.json","events_json":"https://pith.science/api/pith-number/OROG7F63KTNR66LRRP7NLRW7BQ/events.json","paper":"https://pith.science/paper/OROG7F63"},"agent_actions":{"view_html":"https://pith.science/pith/OROG7F63KTNR66LRRP7NLRW7BQ","download_json":"https://pith.science/pith/OROG7F63KTNR66LRRP7NLRW7BQ.json","view_paper":"https://pith.science/paper/OROG7F63","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2412.09652&json=true","fetch_graph":"https://pith.science/api/pith-number/OROG7F63KTNR66LRRP7NLRW7BQ/graph.json","fetch_events":"https://pith.science/api/pith-number/OROG7F63KTNR66LRRP7NLRW7BQ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/OROG7F63KTNR66LRRP7NLRW7BQ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/OROG7F63KTNR66LRRP7NLRW7BQ/action/storage_attestation","attest_author":"https://pith.science/pith/OROG7F63KTNR66LRRP7NLRW7BQ/action/author_attestation","sign_citation":"https://pith.science/pith/OROG7F63KTNR66LRRP7NLRW7BQ/action/citation_signature","submit_replication":"https://pith.science/pith/OROG7F63KTNR66LRRP7NLRW7BQ/action/replication_record"}},"created_at":"2026-07-05T10:22:54.866182+00:00","updated_at":"2026-07-05T10:22:54.866182+00:00"}