{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:IJPJNNHWAJ6EO2FMRX5FRGY4MS","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":"e2fa607260241de35b213d04245f305b5a30ce64315a70b2c8a3d9a444ba5683","cross_cats_sorted":["nucl-ex"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-th","submitted_at":"2024-02-26T13:21:40Z","title_canon_sha256":"f4504698a493ef749d60a8ca7a6c7c9a52fb0794c3539d43d5d610df4553e4ee"},"schema_version":"1.0","source":{"id":"2402.16550","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2402.16550","created_at":"2026-07-05T08:36:23Z"},{"alias_kind":"arxiv_version","alias_value":"2402.16550v3","created_at":"2026-07-05T08:36:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2402.16550","created_at":"2026-07-05T08:36:23Z"},{"alias_kind":"pith_short_12","alias_value":"IJPJNNHWAJ6E","created_at":"2026-07-05T08:36:23Z"},{"alias_kind":"pith_short_16","alias_value":"IJPJNNHWAJ6EO2FM","created_at":"2026-07-05T08:36:23Z"},{"alias_kind":"pith_short_8","alias_value":"IJPJNNHW","created_at":"2026-07-05T08:36:23Z"}],"graph_snapshots":[{"event_id":"sha256:004eed0ed6e11229108be379fed0210eadc869ba4a29a4412bd76f231ac8abbc","target":"graph","created_at":"2026-07-05T08:36:23Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2402.16550/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The hexadecapole deformation ($\\beta_4$) of the $^{238}$U nucleus has not been determined because its effect is overwhelmed by those from the nucleus' large quadrupole deformation ($\\beta_2$) in nuclear electric transition measurements. In this Letter, we identify the nonlinear response of the hexadecapole anisotropy to ellipticity in relativistic $^{238}$U+ $^{238}$U collisions that is solely sensitive to $\\beta_4$ and insensitive to $\\beta_2$. We demonstrate this by state-of-the-art hydrodynamic calculations and discuss the prospects of discovering the $\\beta_4$ of $^{238}$U in heavy-ion dat","authors_text":"Fuqiang Wang, Hao-jie Xu, Jie Zhao","cross_cats":["nucl-ex"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-th","submitted_at":"2024-02-26T13:21:40Z","title":"Hexadecapole deformation of $^{238}$U from relativistic heavy-ion collisions using a nonlinear response coefficient"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2402.16550","kind":"arxiv","version":3},"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":"sha256:83b6693427e087011d5314e1405e92c22e2a3d21adea666742b40ec8c9b56b01","target":"record","created_at":"2026-07-05T08:36:23Z","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":"e2fa607260241de35b213d04245f305b5a30ce64315a70b2c8a3d9a444ba5683","cross_cats_sorted":["nucl-ex"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-th","submitted_at":"2024-02-26T13:21:40Z","title_canon_sha256":"f4504698a493ef749d60a8ca7a6c7c9a52fb0794c3539d43d5d610df4553e4ee"},"schema_version":"1.0","source":{"id":"2402.16550","kind":"arxiv","version":3}},"canonical_sha256":"425e96b4f6027c4768ac8dfa589b1c64bed4315bce11f8199ce59c802c77152d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"425e96b4f6027c4768ac8dfa589b1c64bed4315bce11f8199ce59c802c77152d","first_computed_at":"2026-07-05T08:36:23.011230Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:36:23.011230Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"W3Rp3mbkTGqa9pC/3MxOgD7akXW5e291cZs0EGzCaI1WPkd/PksgkWb6bDOV0v9IMxSxEChkyUlPnCEfPPE4CQ==","signature_status":"signed_v1","signed_at":"2026-07-05T08:36:23.011708Z","signed_message":"canonical_sha256_bytes"},"source_id":"2402.16550","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:83b6693427e087011d5314e1405e92c22e2a3d21adea666742b40ec8c9b56b01","sha256:004eed0ed6e11229108be379fed0210eadc869ba4a29a4412bd76f231ac8abbc"],"state_sha256":"864538b19a51ca1675bb2f2b9f7f4ee8e325bdbd4ed404bd89d12374acb9800b"}