{"paper":{"title":"First evidence of enhanced low-energy $\\gamma$-ray strength from thermal neutron capture data","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"B. A. Brown, L. Crespo Campo, M. Guttormsen, R. B. Firestone, R. Schwengner","submitted_at":"2019-04-09T19:25:16Z","abstract_excerpt":"The $\\gamma$-ray strength function, or average reduced $\\gamma$-ray transition probability, is a fundamental input in the calculation of $(n,\\gamma)$ cross sections used to simulate the nucleosynthesis of elements heavier than Fe. Since 2004, an enhanced probability of $\\gamma$-decay with $\\gamma$-ray energies below $\\approx2 - 4$ MeV has been measured in reaction data for numerous nuclei. This has been observed as an increase in the $\\gamma$-ray strength with decreasing $\\gamma$-ray energy, often referred to as the low-energy enhancement or \\textit{upbend} in the $\\gamma$-ray strength. Nevert"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.04878","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"}