{"paper":{"title":"Observation of the 2$^+$ isomer in $^{52}$Co","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A. Algora, A.M. Rogers, A. Tamii, B. Bilgier, B. Blank, B. Rubio, C. Stodel, E. Ganio\\u{g}lu, F. Molina, G. de France, G. Susoy, H.C. Kozer, J. Agramunt, J.C. Thomas, J. Giovinazzo, L. C\\'aceres, L. Kucuk, L. Popescu, M. Gerbaux, O. Kamalou, P. Ascher, R.B. Cakirli, S.E.A. Orrigo, S. Gr\\'evy, T. Kurtukian-Nieto, T. Suzuki, W. Gelletly, Y. Fujita","submitted_at":"2016-05-27T19:44:29Z","abstract_excerpt":"We report the first observation of the 2$^+$ isomer in $^{52}$Co, produced in the $\\beta$ decay of the 0$^+$, $^{52}$Ni ground state. We have observed three $\\gamma$-rays at 849, 1910, and 5185 keV characterizing the $\\beta$ de-excitation of the isomer. We have measured a half-life of 102(6) ms for the isomeric state. The Fermi and Gamow-Teller transition strengths for the $\\beta$ decay of $^{52m}$Co to $^{52}$Fe have been determined. We also add new information on the $\\beta$ decay of the 6$^+$, $^{52}$Co ground state, for which we have measured a half-life of 112(3) ms."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.08769","kind":"arxiv","version":2},"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"}