{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:74KWDJSYXZ46E76MVLSJ4PMS6L","short_pith_number":"pith:74KWDJSY","schema_version":"1.0","canonical_sha256":"ff1561a658be79e27fccaae49e3d92f2fabd7c27439a20ffc9828780d85e8f1b","source":{"kind":"arxiv","id":"1503.03656","version":1},"attestation_state":"computed","paper":{"title":"Second Moment of the Pion Light-cone Distribution Amplitude from Lattice QCD","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"hep-lat","authors_text":"A. Sch\\\"afer, A. Sternbeck, M. G\\\"ockeler, P. P\\'erez-Rubio, R. W. Schiel, S. Collins, V.M. Braun","submitted_at":"2015-03-12T10:00:49Z","abstract_excerpt":"We present the results of a lattice study of the second moment of the light-cone pion distribution amplitude using two flavors of dynamical (clover) fermions on lattices of different volumes and pion masses down to $m_\\pi\\sim 150 \\, \\mathrm {MeV}$. At lattice spacings between $0.06 \\, \\mathrm {fm}$ and $0.08 \\, \\mathrm {fm}$ we find for the second Gegenbauer moment the value $a_2 = 0.1364(154)(145)$ at the scale $\\mu=2 \\, \\mathrm {GeV}$ in the $\\overline{\\mathrm{MS}}$ scheme, where the first error is statistical including the uncertainty of the chiral extrapolation, and the second error is the"},"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":"1503.03656","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2015-03-12T10:00:49Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"f9a775f08a11da621a0bc55817e65df64e418711f7c4a32b729b53a72a557f36","abstract_canon_sha256":"5c333332122df544e53d260b4bd2649da2b63255910a2fd1b41f36260a228879"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:36:13.442325Z","signature_b64":"3lpcAPsvVk8KTif43hvj8rCRzqM8rbETzruIHzoftEgX7AsCP9Ezn/hfVZCQYmtZSShS+jn7VwVVUL1vPl7PAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ff1561a658be79e27fccaae49e3d92f2fabd7c27439a20ffc9828780d85e8f1b","last_reissued_at":"2026-05-18T01:36:13.441779Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:36:13.441779Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Second Moment of the Pion Light-cone Distribution Amplitude from Lattice QCD","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"hep-lat","authors_text":"A. Sch\\\"afer, A. Sternbeck, M. G\\\"ockeler, P. P\\'erez-Rubio, R. W. Schiel, S. Collins, V.M. Braun","submitted_at":"2015-03-12T10:00:49Z","abstract_excerpt":"We present the results of a lattice study of the second moment of the light-cone pion distribution amplitude using two flavors of dynamical (clover) fermions on lattices of different volumes and pion masses down to $m_\\pi\\sim 150 \\, \\mathrm {MeV}$. At lattice spacings between $0.06 \\, \\mathrm {fm}$ and $0.08 \\, \\mathrm {fm}$ we find for the second Gegenbauer moment the value $a_2 = 0.1364(154)(145)$ at the scale $\\mu=2 \\, \\mathrm {GeV}$ in the $\\overline{\\mathrm{MS}}$ scheme, where the first error is statistical including the uncertainty of the chiral extrapolation, and the second error is the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.03656","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":"1503.03656","created_at":"2026-05-18T01:36:13.441857+00:00"},{"alias_kind":"arxiv_version","alias_value":"1503.03656v1","created_at":"2026-05-18T01:36:13.441857+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.03656","created_at":"2026-05-18T01:36:13.441857+00:00"},{"alias_kind":"pith_short_12","alias_value":"74KWDJSYXZ46","created_at":"2026-05-18T12:29:07.941421+00:00"},{"alias_kind":"pith_short_16","alias_value":"74KWDJSYXZ46E76M","created_at":"2026-05-18T12:29:07.941421+00:00"},{"alias_kind":"pith_short_8","alias_value":"74KWDJSY","created_at":"2026-05-18T12:29:07.941421+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2602.10775","citing_title":"Unified Description of Pseudoscalar Meson Structure from Light to Heavy Quarks","ref_index":77,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/74KWDJSYXZ46E76MVLSJ4PMS6L","json":"https://pith.science/pith/74KWDJSYXZ46E76MVLSJ4PMS6L.json","graph_json":"https://pith.science/api/pith-number/74KWDJSYXZ46E76MVLSJ4PMS6L/graph.json","events_json":"https://pith.science/api/pith-number/74KWDJSYXZ46E76MVLSJ4PMS6L/events.json","paper":"https://pith.science/paper/74KWDJSY"},"agent_actions":{"view_html":"https://pith.science/pith/74KWDJSYXZ46E76MVLSJ4PMS6L","download_json":"https://pith.science/pith/74KWDJSYXZ46E76MVLSJ4PMS6L.json","view_paper":"https://pith.science/paper/74KWDJSY","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1503.03656&json=true","fetch_graph":"https://pith.science/api/pith-number/74KWDJSYXZ46E76MVLSJ4PMS6L/graph.json","fetch_events":"https://pith.science/api/pith-number/74KWDJSYXZ46E76MVLSJ4PMS6L/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/74KWDJSYXZ46E76MVLSJ4PMS6L/action/timestamp_anchor","attest_storage":"https://pith.science/pith/74KWDJSYXZ46E76MVLSJ4PMS6L/action/storage_attestation","attest_author":"https://pith.science/pith/74KWDJSYXZ46E76MVLSJ4PMS6L/action/author_attestation","sign_citation":"https://pith.science/pith/74KWDJSYXZ46E76MVLSJ4PMS6L/action/citation_signature","submit_replication":"https://pith.science/pith/74KWDJSYXZ46E76MVLSJ4PMS6L/action/replication_record"}},"created_at":"2026-05-18T01:36:13.441857+00:00","updated_at":"2026-05-18T01:36:13.441857+00:00"}