{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:7YJ5N5I5TM2XRNPXEEK5JF72H6","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":"639753d99ecb1c4e6f930a1d8b9c2ef9e455dc0e983608decb853609fd74cc61","cross_cats_sorted":["hep-ph","nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2012-06-19T13:56:33Z","title_canon_sha256":"a4feff4bce4a55f2a67b35d6e569ebb4f5fb9db123b2cfebaad50fca67bb1dfe"},"schema_version":"1.0","source":{"id":"1206.4210","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1206.4210","created_at":"2026-05-18T01:56:50Z"},{"alias_kind":"arxiv_version","alias_value":"1206.4210v2","created_at":"2026-05-18T01:56:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1206.4210","created_at":"2026-05-18T01:56:50Z"},{"alias_kind":"pith_short_12","alias_value":"7YJ5N5I5TM2X","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_16","alias_value":"7YJ5N5I5TM2XRNPX","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_8","alias_value":"7YJ5N5I5","created_at":"2026-05-18T12:26:58Z"}],"graph_snapshots":[{"event_id":"sha256:edff5ec9bba062a92c823e04399f3e74b9cc5cf72e039ebcb62bd63b1ee2e419","target":"graph","created_at":"2026-05-18T01:56:50Z","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":"For the study of the $\\Sigma$ resonances, we analyze the differential cross sections and $\\Lambda$ polarizations for the reactions $K^-n\\to\\pi^-\\Lambda$ and $K^-p\\to\\pi^0\\Lambda$ with an effective Lagrangian approach. Data of an early experiment and the recent Crystal Ball experiment at BNL are included in the analysis with the c.m. energy from 1550 to 1676 MeV. Our results clearly support the existence of a $\\Sigma$ resonance with $J^P={1\\over 2}^+$, mass near 1633 MeV, and width about 120 MeV, which confirms the 3-star $\\Sigma(1660) 1/2^+$ in PDG. Meanwhile, our results do not support the ex","authors_text":"B. S. Zou, Jun Shi, Puze Gao","cross_cats":["hep-ph","nucl-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2012-06-19T13:56:33Z","title":"$\\Sigma$ Resonances from $K^- N\\rightarrow \\pi\\Lambda$ reactions with the center of mass energy from 1550 to 1676 MeV"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1206.4210","kind":"arxiv","version":2},"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:b20a4fc29301299e0a773aca107659e4e1923f005d4b69b54c2ff7b535077956","target":"record","created_at":"2026-05-18T01:56:50Z","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":"639753d99ecb1c4e6f930a1d8b9c2ef9e455dc0e983608decb853609fd74cc61","cross_cats_sorted":["hep-ph","nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2012-06-19T13:56:33Z","title_canon_sha256":"a4feff4bce4a55f2a67b35d6e569ebb4f5fb9db123b2cfebaad50fca67bb1dfe"},"schema_version":"1.0","source":{"id":"1206.4210","kind":"arxiv","version":2}},"canonical_sha256":"fe13d6f51d9b3578b5f72115d497fa3f9fb0abe30b60b3d7eb334c4615783c33","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fe13d6f51d9b3578b5f72115d497fa3f9fb0abe30b60b3d7eb334c4615783c33","first_computed_at":"2026-05-18T01:56:50.947404Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:56:50.947404Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dNKTgySArL3RjZJ95t9p7mBQL+tejMrEISSSWflkjRL9on3ZEFn4MaXJCWRTqrxsu3jIWrkfbHxZJUo8iQJoAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:56:50.948066Z","signed_message":"canonical_sha256_bytes"},"source_id":"1206.4210","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b20a4fc29301299e0a773aca107659e4e1923f005d4b69b54c2ff7b535077956","sha256:edff5ec9bba062a92c823e04399f3e74b9cc5cf72e039ebcb62bd63b1ee2e419"],"state_sha256":"16cb4b689753228ade17fbc318723ce557643c5633bc4cef5deae23efd927d78"}