{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:U2ZRLS4DYSI3FP5OCMCJS62TB5","short_pith_number":"pith:U2ZRLS4D","schema_version":"1.0","canonical_sha256":"a6b315cb83c491b2bfae1304997b530f54545a23ccf34c017dc89811a43b5221","source":{"kind":"arxiv","id":"2108.02176","version":2},"attestation_state":"computed","paper":{"title":"Scintillation yield from electronic and nuclear recoils in superfluid $^4$He","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.IM","hep-ex"],"primary_cat":"physics.ins-det","authors_text":"A. Serafin, A. S. Seilnacht, A. Suzuki, B. Penning, B. Suerfu, C. Chang, C. W. Fink, D. N. McKinsey, E. C. Glazer, G. Wang, H. D. Pinckney, J. Lin, J. S. Nguyen, J. Zhang, L. Yuan, M. Garcia-Sciveres, M. Lisovenko, M. Pyle, P. K. Patel, P. Sorensen, R. J. Smith, R. K. Romani, R. Mahapatra, S. A. Hertel, S. Kravitz, S. L. Watkins, SPICE/HeRALD Collaboration: A. Biekert, V. G. Yefremenko, V. Novosad, V. Velan, W. Guo, W. Page","submitted_at":"2021-08-04T17:05:26Z","abstract_excerpt":"Superfluid $^4$He is a promising target material for direct detection of light ($<$ 1 GeV) dark matter. Possible signal channels available for readout in this medium include prompt photons, triplet excimers, and roton and phonon quasiparticles. The relative yield of these signals has implications for the sensitivity and discrimination power of a superfluid $^4$He dark matter detector. Using a 16~cm$^3$ volume of 1.75~K superfluid $^4$He read out by six immersed photomultiplier tubes, we measured the scintillation from electronic recoils ranging between 36.3 and 185 keV$_\\mathrm{ee}$, yielding "},"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":"2108.02176","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.ins-det","submitted_at":"2021-08-04T17:05:26Z","cross_cats_sorted":["astro-ph.IM","hep-ex"],"title_canon_sha256":"936b47fbb314123fea46f452b00fb53e76f14c593c6e8a9a6eda4fd932025b7f","abstract_canon_sha256":"4ef5452baf17a9986c4f43c47a8933bdba58b831d2008e5093a99211235da3ae"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:23:04.762949Z","signature_b64":"dIPQC2tzmBU0MXcLS8ynd6v4fVC0tWRqBZhvhINXWbf8n3VA4yXLzarAkzE/16mw9wg2TwqcCblQAWQorNvZBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a6b315cb83c491b2bfae1304997b530f54545a23ccf34c017dc89811a43b5221","last_reissued_at":"2026-07-05T04:23:04.762476Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:23:04.762476Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Scintillation yield from electronic and nuclear recoils in superfluid $^4$He","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.IM","hep-ex"],"primary_cat":"physics.ins-det","authors_text":"A. Serafin, A. S. Seilnacht, A. Suzuki, B. Penning, B. Suerfu, C. Chang, C. W. Fink, D. N. McKinsey, E. C. Glazer, G. Wang, H. D. Pinckney, J. Lin, J. S. Nguyen, J. Zhang, L. Yuan, M. Garcia-Sciveres, M. Lisovenko, M. Pyle, P. K. Patel, P. Sorensen, R. J. Smith, R. K. Romani, R. Mahapatra, S. A. Hertel, S. Kravitz, S. L. Watkins, SPICE/HeRALD Collaboration: A. Biekert, V. G. Yefremenko, V. Novosad, V. Velan, W. Guo, W. Page","submitted_at":"2021-08-04T17:05:26Z","abstract_excerpt":"Superfluid $^4$He is a promising target material for direct detection of light ($<$ 1 GeV) dark matter. Possible signal channels available for readout in this medium include prompt photons, triplet excimers, and roton and phonon quasiparticles. The relative yield of these signals has implications for the sensitivity and discrimination power of a superfluid $^4$He dark matter detector. Using a 16~cm$^3$ volume of 1.75~K superfluid $^4$He read out by six immersed photomultiplier tubes, we measured the scintillation from electronic recoils ranging between 36.3 and 185 keV$_\\mathrm{ee}$, yielding "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.02176","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/2108.02176/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":"2108.02176","created_at":"2026-07-05T04:23:04.762535+00:00"},{"alias_kind":"arxiv_version","alias_value":"2108.02176v2","created_at":"2026-07-05T04:23:04.762535+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.02176","created_at":"2026-07-05T04:23:04.762535+00:00"},{"alias_kind":"pith_short_12","alias_value":"U2ZRLS4DYSI3","created_at":"2026-07-05T04:23:04.762535+00:00"},{"alias_kind":"pith_short_16","alias_value":"U2ZRLS4DYSI3FP5O","created_at":"2026-07-05T04:23:04.762535+00:00"},{"alias_kind":"pith_short_8","alias_value":"U2ZRLS4D","created_at":"2026-07-05T04:23:04.762535+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/U2ZRLS4DYSI3FP5OCMCJS62TB5","json":"https://pith.science/pith/U2ZRLS4DYSI3FP5OCMCJS62TB5.json","graph_json":"https://pith.science/api/pith-number/U2ZRLS4DYSI3FP5OCMCJS62TB5/graph.json","events_json":"https://pith.science/api/pith-number/U2ZRLS4DYSI3FP5OCMCJS62TB5/events.json","paper":"https://pith.science/paper/U2ZRLS4D"},"agent_actions":{"view_html":"https://pith.science/pith/U2ZRLS4DYSI3FP5OCMCJS62TB5","download_json":"https://pith.science/pith/U2ZRLS4DYSI3FP5OCMCJS62TB5.json","view_paper":"https://pith.science/paper/U2ZRLS4D","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2108.02176&json=true","fetch_graph":"https://pith.science/api/pith-number/U2ZRLS4DYSI3FP5OCMCJS62TB5/graph.json","fetch_events":"https://pith.science/api/pith-number/U2ZRLS4DYSI3FP5OCMCJS62TB5/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/U2ZRLS4DYSI3FP5OCMCJS62TB5/action/timestamp_anchor","attest_storage":"https://pith.science/pith/U2ZRLS4DYSI3FP5OCMCJS62TB5/action/storage_attestation","attest_author":"https://pith.science/pith/U2ZRLS4DYSI3FP5OCMCJS62TB5/action/author_attestation","sign_citation":"https://pith.science/pith/U2ZRLS4DYSI3FP5OCMCJS62TB5/action/citation_signature","submit_replication":"https://pith.science/pith/U2ZRLS4DYSI3FP5OCMCJS62TB5/action/replication_record"}},"created_at":"2026-07-05T04:23:04.762535+00:00","updated_at":"2026-07-05T04:23:04.762535+00:00"}