{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:3KMVWL3OI2VVPJKKFQCGC24UR6","short_pith_number":"pith:3KMVWL3O","schema_version":"1.0","canonical_sha256":"da995b2f6e46ab57a54a2c04616b948fb274d055e8c8cb77aeb32cf5f5ec5b70","source":{"kind":"arxiv","id":"1403.6961","version":1},"attestation_state":"computed","paper":{"title":"Is the first excited state of the $\\alpha$-particle a breathing mode?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"Giuseppina Orlandini, Nir Barnea, Sonia Bacca, Winfried Leidemann","submitted_at":"2014-03-27T09:44:24Z","abstract_excerpt":"The isoscalar monopole excitation of 4He is studied within a few-body ab initio approach. We consider the transition density to the low-lying and narrow 0+ resonance, as well as various sum rules and the strength energy distribution itself at different momentum transfers q. Realistic nuclear forces of chiral and phenomenological nature are employed. Various indications for a collective breathing mode are found: i) the specific shape of the transition density, ii) the high degree of exhaustion of the non-energy-weighted sum rule at low q and iii) the complete dominance of the resonance peak in "},"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":"1403.6961","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2014-03-27T09:44:24Z","cross_cats_sorted":[],"title_canon_sha256":"a897cbb64b9556037f4face9dcb2faaef7dc3b30dedf4ae8f7884978bfa90b1a","abstract_canon_sha256":"0bed8e5cdbe0d8bfe38007ddb7c3be7637d0e1331714ccc29dc262647fd10f2d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:25:47.427674Z","signature_b64":"/+bWIy0Mj16Gx/t89vwC2jyxdIbdZPk7S4oM4B1NmZ091j0fAZ/FVfUJ20RSEqoZnkjaE5IBERqMCeMRJNvkCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"da995b2f6e46ab57a54a2c04616b948fb274d055e8c8cb77aeb32cf5f5ec5b70","last_reissued_at":"2026-05-18T02:25:47.427197Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:25:47.427197Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Is the first excited state of the $\\alpha$-particle a breathing mode?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"Giuseppina Orlandini, Nir Barnea, Sonia Bacca, Winfried Leidemann","submitted_at":"2014-03-27T09:44:24Z","abstract_excerpt":"The isoscalar monopole excitation of 4He is studied within a few-body ab initio approach. We consider the transition density to the low-lying and narrow 0+ resonance, as well as various sum rules and the strength energy distribution itself at different momentum transfers q. Realistic nuclear forces of chiral and phenomenological nature are employed. Various indications for a collective breathing mode are found: i) the specific shape of the transition density, ii) the high degree of exhaustion of the non-energy-weighted sum rule at low q and iii) the complete dominance of the resonance peak in "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.6961","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":"1403.6961","created_at":"2026-05-18T02:25:47.427257+00:00"},{"alias_kind":"arxiv_version","alias_value":"1403.6961v1","created_at":"2026-05-18T02:25:47.427257+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.6961","created_at":"2026-05-18T02:25:47.427257+00:00"},{"alias_kind":"pith_short_12","alias_value":"3KMVWL3OI2VV","created_at":"2026-05-18T12:28:11.866339+00:00"},{"alias_kind":"pith_short_16","alias_value":"3KMVWL3OI2VVPJKK","created_at":"2026-05-18T12:28:11.866339+00:00"},{"alias_kind":"pith_short_8","alias_value":"3KMVWL3O","created_at":"2026-05-18T12:28:11.866339+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/3KMVWL3OI2VVPJKKFQCGC24UR6","json":"https://pith.science/pith/3KMVWL3OI2VVPJKKFQCGC24UR6.json","graph_json":"https://pith.science/api/pith-number/3KMVWL3OI2VVPJKKFQCGC24UR6/graph.json","events_json":"https://pith.science/api/pith-number/3KMVWL3OI2VVPJKKFQCGC24UR6/events.json","paper":"https://pith.science/paper/3KMVWL3O"},"agent_actions":{"view_html":"https://pith.science/pith/3KMVWL3OI2VVPJKKFQCGC24UR6","download_json":"https://pith.science/pith/3KMVWL3OI2VVPJKKFQCGC24UR6.json","view_paper":"https://pith.science/paper/3KMVWL3O","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1403.6961&json=true","fetch_graph":"https://pith.science/api/pith-number/3KMVWL3OI2VVPJKKFQCGC24UR6/graph.json","fetch_events":"https://pith.science/api/pith-number/3KMVWL3OI2VVPJKKFQCGC24UR6/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/3KMVWL3OI2VVPJKKFQCGC24UR6/action/timestamp_anchor","attest_storage":"https://pith.science/pith/3KMVWL3OI2VVPJKKFQCGC24UR6/action/storage_attestation","attest_author":"https://pith.science/pith/3KMVWL3OI2VVPJKKFQCGC24UR6/action/author_attestation","sign_citation":"https://pith.science/pith/3KMVWL3OI2VVPJKKFQCGC24UR6/action/citation_signature","submit_replication":"https://pith.science/pith/3KMVWL3OI2VVPJKKFQCGC24UR6/action/replication_record"}},"created_at":"2026-05-18T02:25:47.427257+00:00","updated_at":"2026-05-18T02:25:47.427257+00:00"}