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We study the heavy quark spin (HQS) multiplet structures of these newly $P_c$ pentaquarks under the heavy quark spin symmetry based on the hadronic molecular picture. We point out that $P_c(4312)$ is the $J^P = 1/2^-$ member of an HQS triplet, and $P_c(4440)$ and $P_c(4457)$ are the $J^P = 3/2^-$ member of the HQS triplet and an HQS singlet with $J^P = 3/2^-$. Namely, the $P_c("},"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":"1904.00587","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-04-01T06:49:47Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"6bf201e3bc5303cc486069a004a468d93c31f11311384daaa68a796e10842056","abstract_canon_sha256":"d23a8d21b5d539e059143c5f91d2e934d170a49764dd64e6a6232545c30802b6"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:49:47.990500Z","signature_b64":"IT6wOsGn/8r9GZiz25jKnovLpfOF6CfTfGSWcQP57rYRshx6H1svk6vzpMwnKQW24we7/ef91b6ADJRdPxMrDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5e144c209a21f6adb18e6e3d7603e4a0ac648d2b36a5940748266f868a404367","last_reissued_at":"2026-05-17T23:49:47.989898Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:49:47.989898Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Heavy quark spin multiplet structure of $P_c(4312)$, $P_c(4440)$, and $P_c(4457)$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"hep-ph","authors_text":"Masayasu Harada, Yasuhiro Yamaguchi, Yuki Shimizu","submitted_at":"2019-04-01T06:49:47Z","abstract_excerpt":"Very recently, the LHCb collaboration has reported the new result about the hidden-charm pentaquarks: $P_c(4312)$ near the $\\bar{D}\\Sigma_c$ threshold, and $P_c(4440)$ and $P_c(4457)$ near $\\bar{D}^*\\Sigma_c$ threshold. We study the heavy quark spin (HQS) multiplet structures of these newly $P_c$ pentaquarks under the heavy quark spin symmetry based on the hadronic molecular picture. We point out that $P_c(4312)$ is the $J^P = 1/2^-$ member of an HQS triplet, and $P_c(4440)$ and $P_c(4457)$ are the $J^P = 3/2^-$ member of the HQS triplet and an HQS singlet with $J^P = 3/2^-$. Namely, the $P_c("},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.00587","kind":"arxiv","version":1},"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":"1904.00587","created_at":"2026-05-17T23:49:47.989979+00:00"},{"alias_kind":"arxiv_version","alias_value":"1904.00587v1","created_at":"2026-05-17T23:49:47.989979+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.00587","created_at":"2026-05-17T23:49:47.989979+00:00"},{"alias_kind":"pith_short_12","alias_value":"LYKEYIE2EH3K","created_at":"2026-05-18T12:33:21.387695+00:00"},{"alias_kind":"pith_short_16","alias_value":"LYKEYIE2EH3K3MMO","created_at":"2026-05-18T12:33:21.387695+00:00"},{"alias_kind":"pith_short_8","alias_value":"LYKEYIE2","created_at":"2026-05-18T12:33:21.387695+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2603.04911","citing_title":"Magnetic moments of strange hidden-bottom pentaquarks and the role of spin flavor correlations","ref_index":30,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/LYKEYIE2EH3K3MMONY6XMA7EUC","json":"https://pith.science/pith/LYKEYIE2EH3K3MMONY6XMA7EUC.json","graph_json":"https://pith.science/api/pith-number/LYKEYIE2EH3K3MMONY6XMA7EUC/graph.json","events_json":"https://pith.science/api/pith-number/LYKEYIE2EH3K3MMONY6XMA7EUC/events.json","paper":"https://pith.science/paper/LYKEYIE2"},"agent_actions":{"view_html":"https://pith.science/pith/LYKEYIE2EH3K3MMONY6XMA7EUC","download_json":"https://pith.science/pith/LYKEYIE2EH3K3MMONY6XMA7EUC.json","view_paper":"https://pith.science/paper/LYKEYIE2","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1904.00587&json=true","fetch_graph":"https://pith.science/api/pith-number/LYKEYIE2EH3K3MMONY6XMA7EUC/graph.json","fetch_events":"https://pith.science/api/pith-number/LYKEYIE2EH3K3MMONY6XMA7EUC/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/LYKEYIE2EH3K3MMONY6XMA7EUC/action/timestamp_anchor","attest_storage":"https://pith.science/pith/LYKEYIE2EH3K3MMONY6XMA7EUC/action/storage_attestation","attest_author":"https://pith.science/pith/LYKEYIE2EH3K3MMONY6XMA7EUC/action/author_attestation","sign_citation":"https://pith.science/pith/LYKEYIE2EH3K3MMONY6XMA7EUC/action/citation_signature","submit_replication":"https://pith.science/pith/LYKEYIE2EH3K3MMONY6XMA7EUC/action/replication_record"}},"created_at":"2026-05-17T23:49:47.989979+00:00","updated_at":"2026-05-17T23:49:47.989979+00:00"}