{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:P3YQZJ3HU3JOJ4A7U4P5ABMS4B","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":"a59f5051d981333209c8832d0bbb84f84ea8a234e956f0ade3d2571a7446cd70","cross_cats_sorted":["hep-lat"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-02-05T13:12:29Z","title_canon_sha256":"e5fa770a26ce232e1bc679faf308036d671bd0a556b8acb55b71fba8308d83f5"},"schema_version":"1.0","source":{"id":"1402.1031","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1402.1031","created_at":"2026-05-18T01:44:47Z"},{"alias_kind":"arxiv_version","alias_value":"1402.1031v1","created_at":"2026-05-18T01:44:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1402.1031","created_at":"2026-05-18T01:44:47Z"},{"alias_kind":"pith_short_12","alias_value":"P3YQZJ3HU3JO","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_16","alias_value":"P3YQZJ3HU3JOJ4A7","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_8","alias_value":"P3YQZJ3H","created_at":"2026-05-18T12:28:43Z"}],"graph_snapshots":[{"event_id":"sha256:7ddb1a805c9ab48f8edc04b3d4dbad83fee8b8995b9a695b8b5ccfac4ddb7d90","target":"graph","created_at":"2026-05-18T01:44:47Z","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 investigate the pion-mass dependence of the nucleon mass within the covariant SU(2) baryon chiral perturbation theory up to order p4 with and without explicit Delta(1232) degrees of freedom. We fit lattice QCD data from several collaborations for 2 and 2+1 flavor ensembles. Here, we emphasize our Nf=2 study where the inclusion the Delta(1232) contributions stabilizes the fits. We correct for finite volume and spacing effects, set independently the lattice QCD scale by a Sommer-scale of r0 = 0.493(23) fm and also include one sigma pi-N lQCD data point near Mpi = 290 MeV. We obtain low-energy","authors_text":"J. Martin Camalich, L. Alvarez-Ruso, M. J. Vicente Vacas, T. Ledwig","cross_cats":["hep-lat"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-02-05T13:12:29Z","title":"The nucleon mass and pion-nucleon sigma term from a chiral analysis of Nf=2 lattice QCD world data"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1402.1031","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":"sha256:3a85ebeecf0bdee07de493f67b242bea977383c5322f313c82bef021f6fa20f9","target":"record","created_at":"2026-05-18T01:44:47Z","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":"a59f5051d981333209c8832d0bbb84f84ea8a234e956f0ade3d2571a7446cd70","cross_cats_sorted":["hep-lat"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-02-05T13:12:29Z","title_canon_sha256":"e5fa770a26ce232e1bc679faf308036d671bd0a556b8acb55b71fba8308d83f5"},"schema_version":"1.0","source":{"id":"1402.1031","kind":"arxiv","version":1}},"canonical_sha256":"7ef10ca767a6d2e4f01fa71fd00592e060f03d14faa4e4bcdf19bd7e241480e9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7ef10ca767a6d2e4f01fa71fd00592e060f03d14faa4e4bcdf19bd7e241480e9","first_computed_at":"2026-05-18T01:44:47.522923Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:44:47.522923Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"99mJaZ2ILpmJ4U3IEmnVytWMznmwIj4u4gO+L3Sx5BGyRBlkB++qhK7q1VaeX2yj6a4AuWarenzW7TI688iwDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:44:47.523442Z","signed_message":"canonical_sha256_bytes"},"source_id":"1402.1031","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3a85ebeecf0bdee07de493f67b242bea977383c5322f313c82bef021f6fa20f9","sha256:7ddb1a805c9ab48f8edc04b3d4dbad83fee8b8995b9a695b8b5ccfac4ddb7d90"],"state_sha256":"67f6358f32f800cee58b898385def767ddd60e83755ff0b0b9b511ea0d011758"}