{"paper":{"title":"Fine structure in the $\\alpha$ decay of $^{223}$U","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A.H. Feng, A.N. Andreyev, B. Ding, C.J. Lin, C. Qi, D.S. Hou, F.S. Zhang, G.Q. Xiao, H.B. Yang, H.S. Xu, H.Y. Lu, J.G. Wang, J. Jiang, J. Li, K.L. Wang, L.J. Sun, L. Ma, L. Yu, M.D. Sun, M.L. Liu, N.R. Ma, T.H. Huang, W.Q. Zhang, W. Zuo, X.H. Zhou, X. Wang, X.Y. Liu, Y.S. Wang, Z.G. Gan, Z.H. Li, Z. Liu, Z.Y. Zhang","submitted_at":"2019-04-10T01:13:04Z","abstract_excerpt":"Fine structure in the $\\alpha$ decay of $^{223}$U was observed in the fusion-evaporation reaction $^{187}$Re($^{40}$Ar, p3n) by using fast digital pulse processing technique. Two $\\alpha$-decay branches of $^{223}$U feeding the ground state and 244 keV excited state of $^{219}$Th were identified by establishing the decay chain $^{223}$U $\\xrightarrow{\\alpha_{1}}$ $^{219}$Th $\\xrightarrow{\\alpha_{2}}$ $^{215}$Ra $\\xrightarrow{\\alpha_{3}}$ $^{211}$Rn. The $\\alpha$-particle energy for the ground-state to ground-state transition of $^{223}$U was determined to be 8993(17) keV, 213 keV higher than t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.04961","kind":"arxiv","version":5},"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/1904.04961/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"}