{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:CVHGNSTN5QC5XLAMQQ6BRLNTO7","short_pith_number":"pith:CVHGNSTN","schema_version":"1.0","canonical_sha256":"154e66ca6dec05dbac0c843c18adb377d642a4908c355ef05045816869f38194","source":{"kind":"arxiv","id":"2107.12837","version":1},"attestation_state":"computed","paper":{"title":"Challenges for FCC-ee Luminosity Monitor Design","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-ex","physics.acc-ph"],"primary_cat":"physics.ins-det","authors_text":"Mogens Dam","submitted_at":"2021-07-27T14:11:34Z","abstract_excerpt":"For cross section measurements, an accurate knowledge of the integrated luminosity is required. The FCC-ee Z lineshape programme sets the ambitious precision goal of $10^{-4}$ on the \\emph{absolute} luminosity measurement and one order of magnitude better on the \\emph{relative} measurement between energy-scan points. The luminosity is determined from the rate of small-angle Bhabha scattering, $\\mathrm{e^+e^- \\to e^+e^-}$, where the final state electrons and positrons are detected in dedicated monitors covering small angles from the outgoing beam directions. The constraints on the luminosity mo"},"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":"2107.12837","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.ins-det","submitted_at":"2021-07-27T14:11:34Z","cross_cats_sorted":["hep-ex","physics.acc-ph"],"title_canon_sha256":"c6fe83b49cd13878537bd880b4e57fc6de608ec264bf86f08dd0328e6cfd6fcd","abstract_canon_sha256":"a4a04680ea9e2220081c2b1f368416ffd901ddf35ef035e1eb8f388b5ee0e1dd"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:01:01.239925Z","signature_b64":"hd2it/IoyNVZu4zNBlV5v5P1SKF4Eksw9Lp8Q42ggFOlDsKBM2iDYjCPr+S96xnFCUI5YRfBFw2OqDsBM0iaDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"154e66ca6dec05dbac0c843c18adb377d642a4908c355ef05045816869f38194","last_reissued_at":"2026-07-05T03:01:01.239527Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:01:01.239527Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Challenges for FCC-ee Luminosity Monitor Design","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-ex","physics.acc-ph"],"primary_cat":"physics.ins-det","authors_text":"Mogens Dam","submitted_at":"2021-07-27T14:11:34Z","abstract_excerpt":"For cross section measurements, an accurate knowledge of the integrated luminosity is required. The FCC-ee Z lineshape programme sets the ambitious precision goal of $10^{-4}$ on the \\emph{absolute} luminosity measurement and one order of magnitude better on the \\emph{relative} measurement between energy-scan points. The luminosity is determined from the rate of small-angle Bhabha scattering, $\\mathrm{e^+e^- \\to e^+e^-}$, where the final state electrons and positrons are detected in dedicated monitors covering small angles from the outgoing beam directions. The constraints on the luminosity mo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2107.12837","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/2107.12837/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":"2107.12837","created_at":"2026-07-05T03:01:01.239590+00:00"},{"alias_kind":"arxiv_version","alias_value":"2107.12837v1","created_at":"2026-07-05T03:01:01.239590+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2107.12837","created_at":"2026-07-05T03:01:01.239590+00:00"},{"alias_kind":"pith_short_12","alias_value":"CVHGNSTN5QC5","created_at":"2026-07-05T03:01:01.239590+00:00"},{"alias_kind":"pith_short_16","alias_value":"CVHGNSTN5QC5XLAM","created_at":"2026-07-05T03:01:01.239590+00:00"},{"alias_kind":"pith_short_8","alias_value":"CVHGNSTN","created_at":"2026-07-05T03:01:01.239590+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2501.05508","citing_title":"On the extraction of $\\alpha_\\textit{em}(m_Z^2)$ at Tera-$Z$","ref_index":22,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/CVHGNSTN5QC5XLAMQQ6BRLNTO7","json":"https://pith.science/pith/CVHGNSTN5QC5XLAMQQ6BRLNTO7.json","graph_json":"https://pith.science/api/pith-number/CVHGNSTN5QC5XLAMQQ6BRLNTO7/graph.json","events_json":"https://pith.science/api/pith-number/CVHGNSTN5QC5XLAMQQ6BRLNTO7/events.json","paper":"https://pith.science/paper/CVHGNSTN"},"agent_actions":{"view_html":"https://pith.science/pith/CVHGNSTN5QC5XLAMQQ6BRLNTO7","download_json":"https://pith.science/pith/CVHGNSTN5QC5XLAMQQ6BRLNTO7.json","view_paper":"https://pith.science/paper/CVHGNSTN","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2107.12837&json=true","fetch_graph":"https://pith.science/api/pith-number/CVHGNSTN5QC5XLAMQQ6BRLNTO7/graph.json","fetch_events":"https://pith.science/api/pith-number/CVHGNSTN5QC5XLAMQQ6BRLNTO7/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/CVHGNSTN5QC5XLAMQQ6BRLNTO7/action/timestamp_anchor","attest_storage":"https://pith.science/pith/CVHGNSTN5QC5XLAMQQ6BRLNTO7/action/storage_attestation","attest_author":"https://pith.science/pith/CVHGNSTN5QC5XLAMQQ6BRLNTO7/action/author_attestation","sign_citation":"https://pith.science/pith/CVHGNSTN5QC5XLAMQQ6BRLNTO7/action/citation_signature","submit_replication":"https://pith.science/pith/CVHGNSTN5QC5XLAMQQ6BRLNTO7/action/replication_record"}},"created_at":"2026-07-05T03:01:01.239590+00:00","updated_at":"2026-07-05T03:01:01.239590+00:00"}