{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:YBYDY26HJQXL4673URI2TVL7LH","short_pith_number":"pith:YBYDY26H","schema_version":"1.0","canonical_sha256":"c0703c6bc74c2ebe7bfba451a9d57f59ee0490377f797ef823bb2d6555413fac","source":{"kind":"arxiv","id":"1207.6154","version":1},"attestation_state":"computed","paper":{"title":"Coulomb energy difference as a probe of isospin-symmetry breaking in the upper fp-shell nuclei","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"G. de Angelis, K. Kaneko, S. Tazaki, T. Mizusaki, Y. Sun","submitted_at":"2012-07-26T01:20:07Z","abstract_excerpt":"The anomaly in Coulomb energy differences (CED) between the isospin T=1 states in the odd-odd N=Z nucleus 70Br and the analogue states in its even-even partner 70Se has remained a puzzle. This is a direct manifestation of isospin-symmetry breaking in effective nuclear interactions. Here, we perform large-scale shell-model calculations for nuclei with A=66-78 using the new filter diagonalization method based on the Sakurai-Sugiura algorithm. The calculations reproduce well the experimental CED. The observed negative CED for A=70 are accounted for by the cross-shell neutron excitations from the "},"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":"1207.6154","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2012-07-26T01:20:07Z","cross_cats_sorted":[],"title_canon_sha256":"ce443d62d4901bd10129fcd57571b670d46f1fbe4c39ae2f51a86dd4536b5301","abstract_canon_sha256":"09f6fd65f14152ef25c83bcd2b2ef4c7af88fa7b2dfc3417c56866688c96d785"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:56:07.355062Z","signature_b64":"hcoJj1FlhXHfxLhkMJWDM02oCsbMcA8Bz0uzOcMtcxUv5IteuHkifNOdgoeyyG+5XdX06Fj92PHqwcqM91nTAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c0703c6bc74c2ebe7bfba451a9d57f59ee0490377f797ef823bb2d6555413fac","last_reissued_at":"2026-05-18T01:56:07.354563Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:56:07.354563Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Coulomb energy difference as a probe of isospin-symmetry breaking in the upper fp-shell nuclei","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"G. de Angelis, K. Kaneko, S. Tazaki, T. Mizusaki, Y. Sun","submitted_at":"2012-07-26T01:20:07Z","abstract_excerpt":"The anomaly in Coulomb energy differences (CED) between the isospin T=1 states in the odd-odd N=Z nucleus 70Br and the analogue states in its even-even partner 70Se has remained a puzzle. This is a direct manifestation of isospin-symmetry breaking in effective nuclear interactions. Here, we perform large-scale shell-model calculations for nuclei with A=66-78 using the new filter diagonalization method based on the Sakurai-Sugiura algorithm. The calculations reproduce well the experimental CED. The observed negative CED for A=70 are accounted for by the cross-shell neutron excitations from the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.6154","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":"1207.6154","created_at":"2026-05-18T01:56:07.354642+00:00"},{"alias_kind":"arxiv_version","alias_value":"1207.6154v1","created_at":"2026-05-18T01:56:07.354642+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.6154","created_at":"2026-05-18T01:56:07.354642+00:00"},{"alias_kind":"pith_short_12","alias_value":"YBYDY26HJQXL","created_at":"2026-05-18T12:27:27.928770+00:00"},{"alias_kind":"pith_short_16","alias_value":"YBYDY26HJQXL4673","created_at":"2026-05-18T12:27:27.928770+00:00"},{"alias_kind":"pith_short_8","alias_value":"YBYDY26H","created_at":"2026-05-18T12:27:27.928770+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/YBYDY26HJQXL4673URI2TVL7LH","json":"https://pith.science/pith/YBYDY26HJQXL4673URI2TVL7LH.json","graph_json":"https://pith.science/api/pith-number/YBYDY26HJQXL4673URI2TVL7LH/graph.json","events_json":"https://pith.science/api/pith-number/YBYDY26HJQXL4673URI2TVL7LH/events.json","paper":"https://pith.science/paper/YBYDY26H"},"agent_actions":{"view_html":"https://pith.science/pith/YBYDY26HJQXL4673URI2TVL7LH","download_json":"https://pith.science/pith/YBYDY26HJQXL4673URI2TVL7LH.json","view_paper":"https://pith.science/paper/YBYDY26H","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1207.6154&json=true","fetch_graph":"https://pith.science/api/pith-number/YBYDY26HJQXL4673URI2TVL7LH/graph.json","fetch_events":"https://pith.science/api/pith-number/YBYDY26HJQXL4673URI2TVL7LH/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/YBYDY26HJQXL4673URI2TVL7LH/action/timestamp_anchor","attest_storage":"https://pith.science/pith/YBYDY26HJQXL4673URI2TVL7LH/action/storage_attestation","attest_author":"https://pith.science/pith/YBYDY26HJQXL4673URI2TVL7LH/action/author_attestation","sign_citation":"https://pith.science/pith/YBYDY26HJQXL4673URI2TVL7LH/action/citation_signature","submit_replication":"https://pith.science/pith/YBYDY26HJQXL4673URI2TVL7LH/action/replication_record"}},"created_at":"2026-05-18T01:56:07.354642+00:00","updated_at":"2026-05-18T01:56:07.354642+00:00"}