{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2020:OCK4YJUT7YF4DXDBIKATU7REW2","short_pith_number":"pith:OCK4YJUT","schema_version":"1.0","canonical_sha256":"7095cc2693fe0bc1dc6142813a7e24b6987e380b7ffc799107f5af9fa416cc40","source":{"kind":"arxiv","id":"2004.09824","version":2},"attestation_state":"computed","paper":{"title":"Extraction of $ND$ scattering lengths from the $\\Lambda_b\\rightarrow\\pi^-pD^0$ decay and properties of the $\\Sigma_c(2800)^+$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","nucl-th"],"primary_cat":"hep-ph","authors_text":"Bastian Kubis, Feng-Kun Guo, Shuntaro Sakai","submitted_at":"2020-04-21T08:42:00Z","abstract_excerpt":"The isovector and isoscalar $ND$ $s$-wave scattering lengths are extracted by fitting to the LHCb data of the $pD^0$ invariant-mass distribution in the decay $\\Lambda_b\\rightarrow\\pi^-pD^0$, making use of the cusp effect at the $nD^+$ threshold. The analysis is based on a coupled-channel nonrelativistic effective field theory. We find that the real part of the isovector $ND$ scattering length is unnaturally large due to the existence of a near-threshold state with a mass around 2.8 GeV. The state is consistent with the $\\Sigma_c(2800)^+$ resonance observed at Belle. Our results suggest that it"},"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":"2004.09824","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2020-04-21T08:42:00Z","cross_cats_sorted":["hep-ex","nucl-th"],"title_canon_sha256":"a8a731c62606da4b6912b5a248b36cbf32b523168bbc743472904443d49d1e4a","abstract_canon_sha256":"fbc2f270fe8efa7003cfc554ef54a43e95125d0c9484bd4a4474c1541c88dcba"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:22:44.462010Z","signature_b64":"sLMCw195NsbkHwz+XJBOcOrd/24s5hYlzfQ1Vk4iFJdl0qLSvZj+2uLTzLyvf6YSUvkujWF8pyVghHRcAPwCCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7095cc2693fe0bc1dc6142813a7e24b6987e380b7ffc799107f5af9fa416cc40","last_reissued_at":"2026-07-05T01:22:44.461488Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:22:44.461488Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Extraction of $ND$ scattering lengths from the $\\Lambda_b\\rightarrow\\pi^-pD^0$ decay and properties of the $\\Sigma_c(2800)^+$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","nucl-th"],"primary_cat":"hep-ph","authors_text":"Bastian Kubis, Feng-Kun Guo, Shuntaro Sakai","submitted_at":"2020-04-21T08:42:00Z","abstract_excerpt":"The isovector and isoscalar $ND$ $s$-wave scattering lengths are extracted by fitting to the LHCb data of the $pD^0$ invariant-mass distribution in the decay $\\Lambda_b\\rightarrow\\pi^-pD^0$, making use of the cusp effect at the $nD^+$ threshold. The analysis is based on a coupled-channel nonrelativistic effective field theory. We find that the real part of the isovector $ND$ scattering length is unnaturally large due to the existence of a near-threshold state with a mass around 2.8 GeV. The state is consistent with the $\\Sigma_c(2800)^+$ resonance observed at Belle. Our results suggest that it"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2004.09824","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2004.09824/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2004.09824","created_at":"2026-07-05T01:22:44.461562+00:00"},{"alias_kind":"arxiv_version","alias_value":"2004.09824v2","created_at":"2026-07-05T01:22:44.461562+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2004.09824","created_at":"2026-07-05T01:22:44.461562+00:00"},{"alias_kind":"pith_short_12","alias_value":"OCK4YJUT7YF4","created_at":"2026-07-05T01:22:44.461562+00:00"},{"alias_kind":"pith_short_16","alias_value":"OCK4YJUT7YF4DXDB","created_at":"2026-07-05T01:22:44.461562+00:00"},{"alias_kind":"pith_short_8","alias_value":"OCK4YJUT","created_at":"2026-07-05T01:22:44.461562+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":3,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2605.26658","citing_title":"Isospin-breaking effects on the threshold cusp structures in $\\Lambda N$-$\\Sigma N$ scattering","ref_index":14,"is_internal_anchor":false},{"citing_arxiv_id":"2602.19504","citing_title":"Three-body molecular states composed of $D^{(*)}$ and two nucleons","ref_index":45,"is_internal_anchor":false},{"citing_arxiv_id":"2602.17125","citing_title":"Decoding the near-threshold $X_{0,\\,1}(4140)$ and $X_{1}(4685)$ states via OZI-suppressed coupled-channel scattering","ref_index":37,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/OCK4YJUT7YF4DXDBIKATU7REW2","json":"https://pith.science/pith/OCK4YJUT7YF4DXDBIKATU7REW2.json","graph_json":"https://pith.science/api/pith-number/OCK4YJUT7YF4DXDBIKATU7REW2/graph.json","events_json":"https://pith.science/api/pith-number/OCK4YJUT7YF4DXDBIKATU7REW2/events.json","paper":"https://pith.science/paper/OCK4YJUT"},"agent_actions":{"view_html":"https://pith.science/pith/OCK4YJUT7YF4DXDBIKATU7REW2","download_json":"https://pith.science/pith/OCK4YJUT7YF4DXDBIKATU7REW2.json","view_paper":"https://pith.science/paper/OCK4YJUT","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2004.09824&json=true","fetch_graph":"https://pith.science/api/pith-number/OCK4YJUT7YF4DXDBIKATU7REW2/graph.json","fetch_events":"https://pith.science/api/pith-number/OCK4YJUT7YF4DXDBIKATU7REW2/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/OCK4YJUT7YF4DXDBIKATU7REW2/action/timestamp_anchor","attest_storage":"https://pith.science/pith/OCK4YJUT7YF4DXDBIKATU7REW2/action/storage_attestation","attest_author":"https://pith.science/pith/OCK4YJUT7YF4DXDBIKATU7REW2/action/author_attestation","sign_citation":"https://pith.science/pith/OCK4YJUT7YF4DXDBIKATU7REW2/action/citation_signature","submit_replication":"https://pith.science/pith/OCK4YJUT7YF4DXDBIKATU7REW2/action/replication_record"}},"created_at":"2026-07-05T01:22:44.461562+00:00","updated_at":"2026-07-05T01:22:44.461562+00:00"}