{"paper":{"title":"Validity of the generalized Brink-Axel hypothesis in $^{238}$Np","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"nucl-ex","authors_text":"A.C. Larsen, A. G\\\"orgen, G.M. Tveten, M. Guttormsen, S. Siem, T.G. Tornyi, T. Renstr{\\o}m","submitted_at":"2015-11-02T12:21:55Z","abstract_excerpt":"We have analyzed primary $\\gamma$-ray spectra of the odd-odd $^{238}$Np nucleus extracted from $^{237}$Np($d,p\\gamma$)$^{238}$Np coincidence data measured at the Oslo Cyclotron Laboratory. The primary $\\gamma$ spectra cover an excitation-energy region of $0 \\leq E_i \\leq 5.4$ MeV, and allowed us to perform a detailed study of the $\\gamma$-ray strength as function of excitation energy. Hence, we could test the validity of the generalized Brink-Axel hypothesis, which, in its strictest form, claims no excitation-energy dependence on the $\\gamma$ strength. In this work, using the available high-qu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.00469","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"}