{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:44NXGFFAGPCPP76G7CXD3I2EX2","short_pith_number":"pith:44NXGFFA","schema_version":"1.0","canonical_sha256":"e71b7314a033c4f7ffc6f8ae3da344beb071f5bc777c401c3feedae7832f60a5","source":{"kind":"arxiv","id":"1605.03993","version":2},"attestation_state":"computed","paper":{"title":"Rho resonance parameters from lattice QCD","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"hep-lat","authors_text":"Andrei Alexandru, Dehua Guo, Michael Doering, Raquel Molina","submitted_at":"2016-05-12T21:19:55Z","abstract_excerpt":"We perform a high-precision calculation of the phase shifts for $\\pi$-$\\pi$ scattering in the I = 1, J = 1 channel in the elastic region using elongated lattices with two mass-degenerate quark favors ($N_f = 2$). We extract the $\\rho$ resonance parameters using a Breit-Wigner fit at two different quark masses, corresponding to $m_{\\pi} = 226$MeV and $m_{\\pi} = 315$MeV, and perform an extrapolation to the physical point. The extrapolation is based on a unitarized chiral perturbation theory model that describes well the phase-shifts around the resonance for both quark masses. We find that the ex"},"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":"1605.03993","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2016-05-12T21:19:55Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"8f4b39eaf11c677993721fb1a06093d1ab40ad393bdd7d0d4d11f1377bf20b2b","abstract_canon_sha256":"93ad7f0e8c9805a3be313a578a2f2925975085c354b6bcd8e78d55cd7b4da4bc"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:09:34.462229Z","signature_b64":"5mg/a3cZEVJedEw/sDE7bicq80KMxS73pJNDaAM8CgO7OPIxy/CSL+Cb4C7ua7VsJnA+obe7FYhjVPlbSHsPDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e71b7314a033c4f7ffc6f8ae3da344beb071f5bc777c401c3feedae7832f60a5","last_reissued_at":"2026-05-18T01:09:34.461786Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:09:34.461786Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Rho resonance parameters from lattice QCD","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"hep-lat","authors_text":"Andrei Alexandru, Dehua Guo, Michael Doering, Raquel Molina","submitted_at":"2016-05-12T21:19:55Z","abstract_excerpt":"We perform a high-precision calculation of the phase shifts for $\\pi$-$\\pi$ scattering in the I = 1, J = 1 channel in the elastic region using elongated lattices with two mass-degenerate quark favors ($N_f = 2$). We extract the $\\rho$ resonance parameters using a Breit-Wigner fit at two different quark masses, corresponding to $m_{\\pi} = 226$MeV and $m_{\\pi} = 315$MeV, and perform an extrapolation to the physical point. The extrapolation is based on a unitarized chiral perturbation theory model that describes well the phase-shifts around the resonance for both quark masses. We find that the ex"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.03993","kind":"arxiv","version":2},"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":"1605.03993","created_at":"2026-05-18T01:09:34.461851+00:00"},{"alias_kind":"arxiv_version","alias_value":"1605.03993v2","created_at":"2026-05-18T01:09:34.461851+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1605.03993","created_at":"2026-05-18T01:09:34.461851+00:00"},{"alias_kind":"pith_short_12","alias_value":"44NXGFFAGPCP","created_at":"2026-05-18T12:29:58.707656+00:00"},{"alias_kind":"pith_short_16","alias_value":"44NXGFFAGPCPP76G","created_at":"2026-05-18T12:29:58.707656+00:00"},{"alias_kind":"pith_short_8","alias_value":"44NXGFFA","created_at":"2026-05-18T12:29:58.707656+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2509.08115","citing_title":"Field-theoretic versus data-driven evaluations of electromagnetic corrections to hadronic vacuum polarization in $(g-2)_\\mu$","ref_index":59,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/44NXGFFAGPCPP76G7CXD3I2EX2","json":"https://pith.science/pith/44NXGFFAGPCPP76G7CXD3I2EX2.json","graph_json":"https://pith.science/api/pith-number/44NXGFFAGPCPP76G7CXD3I2EX2/graph.json","events_json":"https://pith.science/api/pith-number/44NXGFFAGPCPP76G7CXD3I2EX2/events.json","paper":"https://pith.science/paper/44NXGFFA"},"agent_actions":{"view_html":"https://pith.science/pith/44NXGFFAGPCPP76G7CXD3I2EX2","download_json":"https://pith.science/pith/44NXGFFAGPCPP76G7CXD3I2EX2.json","view_paper":"https://pith.science/paper/44NXGFFA","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1605.03993&json=true","fetch_graph":"https://pith.science/api/pith-number/44NXGFFAGPCPP76G7CXD3I2EX2/graph.json","fetch_events":"https://pith.science/api/pith-number/44NXGFFAGPCPP76G7CXD3I2EX2/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/44NXGFFAGPCPP76G7CXD3I2EX2/action/timestamp_anchor","attest_storage":"https://pith.science/pith/44NXGFFAGPCPP76G7CXD3I2EX2/action/storage_attestation","attest_author":"https://pith.science/pith/44NXGFFAGPCPP76G7CXD3I2EX2/action/author_attestation","sign_citation":"https://pith.science/pith/44NXGFFAGPCPP76G7CXD3I2EX2/action/citation_signature","submit_replication":"https://pith.science/pith/44NXGFFAGPCPP76G7CXD3I2EX2/action/replication_record"}},"created_at":"2026-05-18T01:09:34.461851+00:00","updated_at":"2026-05-18T01:09:34.461851+00:00"}