{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:52CRT4IJ2XWOVPXQBQRDNAAYLE","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"359bfa2886df74b10e083ca241d6315a0d6f77b7dbff6cf5597b8b991eb2dede","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2014-03-17T06:37:47Z","title_canon_sha256":"1941ecdadd70ee721d0890d36eb2e7b2b29f7384f2c49c6b671cf92900202e17"},"schema_version":"1.0","source":{"id":"1403.4008","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.4008","created_at":"2026-05-18T01:44:00Z"},{"alias_kind":"arxiv_version","alias_value":"1403.4008v2","created_at":"2026-05-18T01:44:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.4008","created_at":"2026-05-18T01:44:00Z"},{"alias_kind":"pith_short_12","alias_value":"52CRT4IJ2XWO","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_16","alias_value":"52CRT4IJ2XWOVPXQ","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_8","alias_value":"52CRT4IJ","created_at":"2026-05-18T12:28:14Z"}],"graph_snapshots":[{"event_id":"sha256:04c3734e9803f5d7d46f0497e3d52a90494241607c3153fc580185851049c4e6","target":"graph","created_at":"2026-05-18T01:44:00Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"The quadrupole vibrational modes of neutron-rich $N$=28 isotones ($^{48}$Ca, $^{46}$Ar, $^{44}$S and $^{42}$Si) are investigated using the canonical-basis time-dependent Hartree-Fock-Bogoliubov theory with several choice of energy density functionals, including nuclear pairing correlation. It is found that the quenching of $N$=28 shell gap and the proton holes in the $sd$-shell trigger quadrupole correlation and increase the collectivity of the low-lying 2$^+$ state in $^{46}$Ar. It is also found that the pairing correlation plays an important role to increase the collectivity. We also demonst","authors_text":"Masaaki Kimura, Shuichiro Ebata","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2014-03-17T06:37:47Z","title":"Low-lying 2$^+$ states generated by $pn$-quadrupole correlation and $N=28$ shell quenching"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.4008","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:8b29642ba4cd9d661e90508cfc4a316bee9e25fb29c7464a521849b646a39bea","target":"record","created_at":"2026-05-18T01:44:00Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"359bfa2886df74b10e083ca241d6315a0d6f77b7dbff6cf5597b8b991eb2dede","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2014-03-17T06:37:47Z","title_canon_sha256":"1941ecdadd70ee721d0890d36eb2e7b2b29f7384f2c49c6b671cf92900202e17"},"schema_version":"1.0","source":{"id":"1403.4008","kind":"arxiv","version":2}},"canonical_sha256":"ee8519f109d5eceabef00c2236801859229c16f5137f598dfad5b97fd4add542","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ee8519f109d5eceabef00c2236801859229c16f5137f598dfad5b97fd4add542","first_computed_at":"2026-05-18T01:44:00.610928Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:44:00.610928Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"avu6APoQ5p7oVjdk8FQnhoJEl6kyaqLt3d4PZnMm41X3bNYY9KRmTCX6ZGCjHPPRHW5hD5U9VHphjyTxYXE6Ag==","signature_status":"signed_v1","signed_at":"2026-05-18T01:44:00.611570Z","signed_message":"canonical_sha256_bytes"},"source_id":"1403.4008","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8b29642ba4cd9d661e90508cfc4a316bee9e25fb29c7464a521849b646a39bea","sha256:04c3734e9803f5d7d46f0497e3d52a90494241607c3153fc580185851049c4e6"],"state_sha256":"82df219a178e0fbbfa7cdbe2ff9e54b72cd4966d20d1e590abf66771a7927fbe"}