{"paper":{"title":"Observation of $\\gamma$-vibrations and alignments built on non-ground-state configurations in 156Dy","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"nucl-ex","authors_text":"B. J. P. Gall, C. Beausang, C.-H.Yu, C.J. Chiara, D. Curien, D. J. Hartley, D. Miller, E.A. McCutchan, F.G. Kondev, I. Stefanescu, J.F. Sharpey-Schafer, J.L. Wood, J. M. Allmond, J. Piot, J. Simpson, L.L. Riedinger, M.A. Riley, M.P. Carpenter, N. Cooper, N. Redon, P.E. Garrett, R. V. F. Janssens, S. N. T. Majola, S. Zhu, T. Lauritsen, V. Werner, W.D. Kulp, X. Wang","submitted_at":"2020-05-10T16:13:46Z","abstract_excerpt":"The exact nature of the lowest $K^\\pi =2_\\gamma ^+$ rotational bands in all deformed nuclei remains obscure. Traditionally they are assumed to be collective vibrations of the nuclear shape in the $\\gamma$ degree of freedom perpendicular to the nuclear symmetry axis. Very few such $\\gamma$-bands have been traced past the usual back-bending rotational alignments of high-j nucleons. We have investigated the structure of positive-parity bands in the N=90 nucleus 156Dy, using the 148Nd(12C,4n)156Dy reaction at 65 MeV, observing the resulting ${\\gamma}$-ray transitions with the Gammasphere array. Th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2005.04706","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2005.04706/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}