{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:REGJULXA26XZVZM5KLTYCHL66O","short_pith_number":"pith:REGJULXA","schema_version":"1.0","canonical_sha256":"890c9a2ee0d7af9ae59d52e7811d7ef393f8d2f0403df74064965cdc18cef33c","source":{"kind":"arxiv","id":"1510.02293","version":1},"attestation_state":"computed","paper":{"title":"Measurement of the e+e- -> pi+pi- cross section using initial state radiation at BESIII","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"Benedikt Kloss","submitted_at":"2015-10-08T12:24:36Z","abstract_excerpt":"Using a data set with an integrated luminosity of 2.93 fb$^{-1}$ taken at a center-of-mass energy of 3.773 GeV with the BESIII detector at the BEPCII collider, we extract the $e^+e^-\\rightarrow \\pi^+\\pi^-$ cross section and the pion form factor $|F_\\pi|^2$ in the energy range between 600 and 900 MeV. We exploit the method of initial state radiation for this measurement, yielding a systematic uncertainty of 0.9%. We calculate the contribution of the measured cross section to the leading-order hadronic vacuum polarization contribution to $(g-2)_\\mu$."},"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":"1510.02293","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2015-10-08T12:24:36Z","cross_cats_sorted":[],"title_canon_sha256":"fcd10483fda6d872197b500986356f09d7690add97eef1045a388b8dbe93d9b8","abstract_canon_sha256":"ca6ac1c304829cabd80b3fd8e99b9387a55cff169d273407c1bb4db0b96b9131"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:30:44.202682Z","signature_b64":"+98J9BYh/kStY/CMVYID36iS4AGWTvlARIl0B7w84LYJZTYMuw8jRxqtjEL368/wMBZFPFM87adfpyF+V7m3AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"890c9a2ee0d7af9ae59d52e7811d7ef393f8d2f0403df74064965cdc18cef33c","last_reissued_at":"2026-05-18T01:30:44.202125Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:30:44.202125Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Measurement of the e+e- -> pi+pi- cross section using initial state radiation at BESIII","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"Benedikt Kloss","submitted_at":"2015-10-08T12:24:36Z","abstract_excerpt":"Using a data set with an integrated luminosity of 2.93 fb$^{-1}$ taken at a center-of-mass energy of 3.773 GeV with the BESIII detector at the BEPCII collider, we extract the $e^+e^-\\rightarrow \\pi^+\\pi^-$ cross section and the pion form factor $|F_\\pi|^2$ in the energy range between 600 and 900 MeV. We exploit the method of initial state radiation for this measurement, yielding a systematic uncertainty of 0.9%. We calculate the contribution of the measured cross section to the leading-order hadronic vacuum polarization contribution to $(g-2)_\\mu$."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.02293","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":""},"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":"1510.02293","created_at":"2026-05-18T01:30:44.202217+00:00"},{"alias_kind":"arxiv_version","alias_value":"1510.02293v1","created_at":"2026-05-18T01:30:44.202217+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.02293","created_at":"2026-05-18T01:30:44.202217+00:00"},{"alias_kind":"pith_short_12","alias_value":"REGJULXA26XZ","created_at":"2026-05-18T12:29:39.896362+00:00"},{"alias_kind":"pith_short_16","alias_value":"REGJULXA26XZVZM5","created_at":"2026-05-18T12:29:39.896362+00:00"},{"alias_kind":"pith_short_8","alias_value":"REGJULXA","created_at":"2026-05-18T12:29:39.896362+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/REGJULXA26XZVZM5KLTYCHL66O","json":"https://pith.science/pith/REGJULXA26XZVZM5KLTYCHL66O.json","graph_json":"https://pith.science/api/pith-number/REGJULXA26XZVZM5KLTYCHL66O/graph.json","events_json":"https://pith.science/api/pith-number/REGJULXA26XZVZM5KLTYCHL66O/events.json","paper":"https://pith.science/paper/REGJULXA"},"agent_actions":{"view_html":"https://pith.science/pith/REGJULXA26XZVZM5KLTYCHL66O","download_json":"https://pith.science/pith/REGJULXA26XZVZM5KLTYCHL66O.json","view_paper":"https://pith.science/paper/REGJULXA","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1510.02293&json=true","fetch_graph":"https://pith.science/api/pith-number/REGJULXA26XZVZM5KLTYCHL66O/graph.json","fetch_events":"https://pith.science/api/pith-number/REGJULXA26XZVZM5KLTYCHL66O/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/REGJULXA26XZVZM5KLTYCHL66O/action/timestamp_anchor","attest_storage":"https://pith.science/pith/REGJULXA26XZVZM5KLTYCHL66O/action/storage_attestation","attest_author":"https://pith.science/pith/REGJULXA26XZVZM5KLTYCHL66O/action/author_attestation","sign_citation":"https://pith.science/pith/REGJULXA26XZVZM5KLTYCHL66O/action/citation_signature","submit_replication":"https://pith.science/pith/REGJULXA26XZVZM5KLTYCHL66O/action/replication_record"}},"created_at":"2026-05-18T01:30:44.202217+00:00","updated_at":"2026-05-18T01:30:44.202217+00:00"}