{"paper":{"title":"Shell-gap reduced level densities in $^{89,90}$Y","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, A. Voinov, E. Sahin, F. Giacoppo, F.L. Bello Garrote, G.M. Tveten, H.T. Nyhus, M. Guttormsen, M. Klintefjord, S.J. Rose, S. Siem, T.K. Eriksen, T. Renstr{\\o}m, T. Tornyi, T.W. Hagen, Y. Byun","submitted_at":"2014-08-26T02:29:15Z","abstract_excerpt":"Particle-$\\gamma$ coincidences from the $^{89}$Y($p,p' \\gamma$)$^{89}$Y and $^{89}$Y($d,p \\gamma$)$^{90}$Y reactions were utilized to obtain $\\gamma$-ray spectra as function of excitation energy. The Oslo method was used to extract the level density from the particle-$\\gamma$ coincidence matrices. The impact of the $N=50$ shell closure on the level densities is discussed within the framework of a combinatorial quasi-particle model."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1408.5985","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"}