{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:DP5PFTC4HFXMITDBUHKF6GORAH","short_pith_number":"pith:DP5PFTC4","schema_version":"1.0","canonical_sha256":"1bfaf2cc5c396ec44c61a1d45f19d101fc887fc08e31be98543d5494e6b9570e","source":{"kind":"arxiv","id":"1809.04273","version":3},"attestation_state":"computed","paper":{"title":"A model to explain angular distributions of $J/\\psi$ and $\\psi(2S)$ decays into $\\Lambda\\overline{\\Lambda}$ and $\\Sigma^0\\overline{\\Sigma}^0$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"A. Amoroso, A. Mangoni, A. Rivetti, C. Leng, D. Bettoni, F. Bianchi, F. Cossio, F. De Mori, G. Cibinetto, G. Felici, G. Mezzadri, I. Balossino, I. Garzia, J. Chai, L. Fava, L. Lavezzi, L. Yan, M. Alekseev, M. Bertani, M. Da Rocha Rolo, M. Destefanis, M. Greco, M. Maggiora, M. Savr\\`ie, P. Patteri, R. Baldini Ferroli, R. Farinelli, S. Marcello, S. Pacetti, S. Sosio, S. Spataro","submitted_at":"2018-09-12T06:44:29Z","abstract_excerpt":"BESIII data show a particular angular distribution for the decay of the $J/\\psi$ and $\\psi(2S)$ mesons into the hyperons $\\Lambda\\overline{\\Lambda}$ and $\\Sigma^0\\overline{\\Sigma}^0$. More in details the angular distribution of the decay $\\psi(2S) \\to \\Sigma^0\\overline{\\Sigma}^0$ exhibits an opposite trend with respect to that of the other three channels: $J/\\psi \\to \\Lambda\\overline{\\Lambda}$, $J/\\psi \\to \\Sigma^0\\overline{\\Sigma}^0$ and $\\psi(2S) \\to \\Lambda\\overline{\\Lambda}$. We define a model to explain the origin of this phenomenon."},"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":"1809.04273","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-09-12T06:44:29Z","cross_cats_sorted":[],"title_canon_sha256":"d8b7bc3c26ae081534ebae93bde4ca50bce58eb0303587d541205dae67e1942f","abstract_canon_sha256":"dbb715f79a908dc5d9bcbd2080e74c632288c679132154e5fed7dddbce8e5b9d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:50:12.540934Z","signature_b64":"5mf1Jo10mrWo0rQS6quxe52BUnp9h647yYStVu0I0ldct7Rvlh3bQLG8WmtGGUOZr3La19qpHIPOyHLLP8hfBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1bfaf2cc5c396ec44c61a1d45f19d101fc887fc08e31be98543d5494e6b9570e","last_reissued_at":"2026-05-17T23:50:12.540497Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:50:12.540497Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A model to explain angular distributions of $J/\\psi$ and $\\psi(2S)$ decays into $\\Lambda\\overline{\\Lambda}$ and $\\Sigma^0\\overline{\\Sigma}^0$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"A. Amoroso, A. Mangoni, A. Rivetti, C. Leng, D. Bettoni, F. Bianchi, F. Cossio, F. De Mori, G. Cibinetto, G. Felici, G. Mezzadri, I. Balossino, I. Garzia, J. Chai, L. Fava, L. Lavezzi, L. Yan, M. Alekseev, M. Bertani, M. Da Rocha Rolo, M. Destefanis, M. Greco, M. Maggiora, M. Savr\\`ie, P. Patteri, R. Baldini Ferroli, R. Farinelli, S. Marcello, S. Pacetti, S. Sosio, S. Spataro","submitted_at":"2018-09-12T06:44:29Z","abstract_excerpt":"BESIII data show a particular angular distribution for the decay of the $J/\\psi$ and $\\psi(2S)$ mesons into the hyperons $\\Lambda\\overline{\\Lambda}$ and $\\Sigma^0\\overline{\\Sigma}^0$. More in details the angular distribution of the decay $\\psi(2S) \\to \\Sigma^0\\overline{\\Sigma}^0$ exhibits an opposite trend with respect to that of the other three channels: $J/\\psi \\to \\Lambda\\overline{\\Lambda}$, $J/\\psi \\to \\Sigma^0\\overline{\\Sigma}^0$ and $\\psi(2S) \\to \\Lambda\\overline{\\Lambda}$. We define a model to explain the origin of this phenomenon."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.04273","kind":"arxiv","version":3},"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":"1809.04273","created_at":"2026-05-17T23:50:12.540568+00:00"},{"alias_kind":"arxiv_version","alias_value":"1809.04273v3","created_at":"2026-05-17T23:50:12.540568+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.04273","created_at":"2026-05-17T23:50:12.540568+00:00"},{"alias_kind":"pith_short_12","alias_value":"DP5PFTC4HFXM","created_at":"2026-05-18T12:32:19.392346+00:00"},{"alias_kind":"pith_short_16","alias_value":"DP5PFTC4HFXMITDB","created_at":"2026-05-18T12:32:19.392346+00:00"},{"alias_kind":"pith_short_8","alias_value":"DP5PFTC4","created_at":"2026-05-18T12:32:19.392346+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/DP5PFTC4HFXMITDBUHKF6GORAH","json":"https://pith.science/pith/DP5PFTC4HFXMITDBUHKF6GORAH.json","graph_json":"https://pith.science/api/pith-number/DP5PFTC4HFXMITDBUHKF6GORAH/graph.json","events_json":"https://pith.science/api/pith-number/DP5PFTC4HFXMITDBUHKF6GORAH/events.json","paper":"https://pith.science/paper/DP5PFTC4"},"agent_actions":{"view_html":"https://pith.science/pith/DP5PFTC4HFXMITDBUHKF6GORAH","download_json":"https://pith.science/pith/DP5PFTC4HFXMITDBUHKF6GORAH.json","view_paper":"https://pith.science/paper/DP5PFTC4","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1809.04273&json=true","fetch_graph":"https://pith.science/api/pith-number/DP5PFTC4HFXMITDBUHKF6GORAH/graph.json","fetch_events":"https://pith.science/api/pith-number/DP5PFTC4HFXMITDBUHKF6GORAH/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/DP5PFTC4HFXMITDBUHKF6GORAH/action/timestamp_anchor","attest_storage":"https://pith.science/pith/DP5PFTC4HFXMITDBUHKF6GORAH/action/storage_attestation","attest_author":"https://pith.science/pith/DP5PFTC4HFXMITDBUHKF6GORAH/action/author_attestation","sign_citation":"https://pith.science/pith/DP5PFTC4HFXMITDBUHKF6GORAH/action/citation_signature","submit_replication":"https://pith.science/pith/DP5PFTC4HFXMITDBUHKF6GORAH/action/replication_record"}},"created_at":"2026-05-17T23:50:12.540568+00:00","updated_at":"2026-05-17T23:50:12.540568+00:00"}