{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:5HYQVUEZJFGRFXES2F2FKZYBJ3","short_pith_number":"pith:5HYQVUEZ","schema_version":"1.0","canonical_sha256":"e9f10ad099494d12dc92d1745567014edad8b4e7bc0b1f9f7f8e80394361ddbc","source":{"kind":"arxiv","id":"1103.1681","version":1},"attestation_state":"computed","paper":{"title":"Clustering effects for explaining an anomalous JLab result on the Be-9 structure function","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","hep-ph","nucl-ex"],"primary_cat":"nucl-th","authors_text":"K. Saito, M. Hirai, S. Kumano, T. Watanabe","submitted_at":"2011-03-09T01:28:16Z","abstract_excerpt":"An anomalous nuclear modification was reported by JLab measurements on the beryllium-9 structure function F_2. It is unexpected in the sense that a nuclear modification slope is too large to be expected from its average nuclear density. We investigated whether it is explained by a nuclear clustering configuration in Be-9 with two \\alpha nuclei and surrounding neutron clouds. Such clustering aspects are studied by using antisymmetrized molecular dynamics (AMD) and also by a simple shell model for comparison. We consider that nuclear structure functions F_2^A consist of a mean conventional part "},"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":"1103.1681","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2011-03-09T01:28:16Z","cross_cats_sorted":["hep-ex","hep-ph","nucl-ex"],"title_canon_sha256":"8b56d622c7763d8306969a89a10e90964dacac8f4312ee60efd79b42bab6d026","abstract_canon_sha256":"aad7c75aa2bb151c0578165b6141997997fa0ce11f2f1265436921788983b5b9"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:02:56.094607Z","signature_b64":"li3qYt2fxuXsX9df1OXIKvwVWBPAKn8/+m9u7CqHsDUfS2ZYt7JGmGTsLAZOfWA0WAknYYFh83bzOK7YEl8wAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e9f10ad099494d12dc92d1745567014edad8b4e7bc0b1f9f7f8e80394361ddbc","last_reissued_at":"2026-05-18T02:02:56.093792Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:02:56.093792Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Clustering effects for explaining an anomalous JLab result on the Be-9 structure function","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","hep-ph","nucl-ex"],"primary_cat":"nucl-th","authors_text":"K. Saito, M. Hirai, S. Kumano, T. Watanabe","submitted_at":"2011-03-09T01:28:16Z","abstract_excerpt":"An anomalous nuclear modification was reported by JLab measurements on the beryllium-9 structure function F_2. It is unexpected in the sense that a nuclear modification slope is too large to be expected from its average nuclear density. We investigated whether it is explained by a nuclear clustering configuration in Be-9 with two \\alpha nuclei and surrounding neutron clouds. Such clustering aspects are studied by using antisymmetrized molecular dynamics (AMD) and also by a simple shell model for comparison. We consider that nuclear structure functions F_2^A consist of a mean conventional part "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.1681","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":"1103.1681","created_at":"2026-05-18T02:02:56.093908+00:00"},{"alias_kind":"arxiv_version","alias_value":"1103.1681v1","created_at":"2026-05-18T02:02:56.093908+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1103.1681","created_at":"2026-05-18T02:02:56.093908+00:00"},{"alias_kind":"pith_short_12","alias_value":"5HYQVUEZJFGR","created_at":"2026-05-18T12:26:20.644004+00:00"},{"alias_kind":"pith_short_16","alias_value":"5HYQVUEZJFGRFXES","created_at":"2026-05-18T12:26:20.644004+00:00"},{"alias_kind":"pith_short_8","alias_value":"5HYQVUEZ","created_at":"2026-05-18T12:26:20.644004+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/5HYQVUEZJFGRFXES2F2FKZYBJ3","json":"https://pith.science/pith/5HYQVUEZJFGRFXES2F2FKZYBJ3.json","graph_json":"https://pith.science/api/pith-number/5HYQVUEZJFGRFXES2F2FKZYBJ3/graph.json","events_json":"https://pith.science/api/pith-number/5HYQVUEZJFGRFXES2F2FKZYBJ3/events.json","paper":"https://pith.science/paper/5HYQVUEZ"},"agent_actions":{"view_html":"https://pith.science/pith/5HYQVUEZJFGRFXES2F2FKZYBJ3","download_json":"https://pith.science/pith/5HYQVUEZJFGRFXES2F2FKZYBJ3.json","view_paper":"https://pith.science/paper/5HYQVUEZ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1103.1681&json=true","fetch_graph":"https://pith.science/api/pith-number/5HYQVUEZJFGRFXES2F2FKZYBJ3/graph.json","fetch_events":"https://pith.science/api/pith-number/5HYQVUEZJFGRFXES2F2FKZYBJ3/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/5HYQVUEZJFGRFXES2F2FKZYBJ3/action/timestamp_anchor","attest_storage":"https://pith.science/pith/5HYQVUEZJFGRFXES2F2FKZYBJ3/action/storage_attestation","attest_author":"https://pith.science/pith/5HYQVUEZJFGRFXES2F2FKZYBJ3/action/author_attestation","sign_citation":"https://pith.science/pith/5HYQVUEZJFGRFXES2F2FKZYBJ3/action/citation_signature","submit_replication":"https://pith.science/pith/5HYQVUEZJFGRFXES2F2FKZYBJ3/action/replication_record"}},"created_at":"2026-05-18T02:02:56.093908+00:00","updated_at":"2026-05-18T02:02:56.093908+00:00"}