{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:P63VWNE537AUKB6GHFWUMOBY2C","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"57cfd568ed1679ab60e951b8a250ebca60b4ab762b110a2157f91a2db8fd4b7e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2016-12-26T07:48:54Z","title_canon_sha256":"18ed12b4b83c769b1662b2abcc938acf07b9880e2ec9f5af7f74d86d2056b61e"},"schema_version":"1.0","source":{"id":"1612.08336","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.08336","created_at":"2026-05-18T00:49:10Z"},{"alias_kind":"arxiv_version","alias_value":"1612.08336v1","created_at":"2026-05-18T00:49:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.08336","created_at":"2026-05-18T00:49:10Z"},{"alias_kind":"pith_short_12","alias_value":"P63VWNE537AU","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_16","alias_value":"P63VWNE537AUKB6G","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_8","alias_value":"P63VWNE5","created_at":"2026-05-18T12:30:36Z"}],"graph_snapshots":[{"event_id":"sha256:5119e505dc7a2aaaa37c8e5c4dfe0137b7e84136b38ab38fbd1076e25442ece5","target":"graph","created_at":"2026-05-18T00:49:10Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"We employ chiral perturbation theory to calculate the nucleon-pion-state contribution to the 3-point correlation functions measured in lattice QCD to compute various moments of parton distribution functions (quark momentum fraction, helicity and transversity moment). We estimate the impact of the nucleon-pion-state contribution on the plateau method for lattice simulations with a physical pion mass. The nucleon-pion-state contribution results in an overestimation of all three moments. The overestimation is at the 5-20% level for source-sink separations of about 1.5 fm.","authors_text":"Oliver Bar","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2016-12-26T07:48:54Z","title":"Nucleon-pion-state contribution in lattice calculations of moments of parton distribution functions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.08336","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:17d25a13b9437003568ef1c7122f81e98e59430531bb41ed1f79c8313089243b","target":"record","created_at":"2026-05-18T00:49:10Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"57cfd568ed1679ab60e951b8a250ebca60b4ab762b110a2157f91a2db8fd4b7e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2016-12-26T07:48:54Z","title_canon_sha256":"18ed12b4b83c769b1662b2abcc938acf07b9880e2ec9f5af7f74d86d2056b61e"},"schema_version":"1.0","source":{"id":"1612.08336","kind":"arxiv","version":1}},"canonical_sha256":"7fb75b349ddfc14507c6396d463838d0bf3b87f988a7b64cbafd5d4de900e04a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7fb75b349ddfc14507c6396d463838d0bf3b87f988a7b64cbafd5d4de900e04a","first_computed_at":"2026-05-18T00:49:10.402371Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:49:10.402371Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"t8Th4zcP6BpoQsldbZ3bNjyKTMczKbUhrD9Te8eNlNfbizI0VoSp950whrCF/n+++kM3JBp5iL3W1NBd034lDw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:49:10.402854Z","signed_message":"canonical_sha256_bytes"},"source_id":"1612.08336","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:17d25a13b9437003568ef1c7122f81e98e59430531bb41ed1f79c8313089243b","sha256:5119e505dc7a2aaaa37c8e5c4dfe0137b7e84136b38ab38fbd1076e25442ece5"],"state_sha256":"7d7a8e8d40c56f78d7202a5f24b0db2d9d54c8b548e652ff3abdb57e743f42db"}