{"paper":{"title":"Structure studies of 257Db through combined {\\alpha}, {\\gamma} and internal-conversion-electron spectroscopy","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A. A. Kuznetsova, A. G. Popeko, A. I. Svirikhin, A. Lopez-Martens, A. V. Isaev, A.V. Yeremin, B. Gall, B. Sailaubekov, E. A. Sokol, H. Faure, I. N. Izosimov, J. Piot, K. Hauschild, K. Rezynkina, M. L. Chelnokov, M. S. Tezekbayeva, N.I. Zamyatin, O. Dorvaux, O. N. Malyshev, P. Brionnet, R. S Mukhin, V. I. Chepigin, Y. A. Popov, Z. Asfari","submitted_at":"2025-07-02T00:42:18Z","abstract_excerpt":"This work reports on the study of the decay properties along the $^{257}$Db decay chain using the GABRIELA setup. The first observation of a high-K isomer in $^{257}$Db is presented. In addition, an unreported $\\alpha$-decay branch in $^{249}$Md has been evidenced, allowing to constrain the differences in energy of the $\\alpha$-decaying levels in $^{249}$Md, $^{253}$Lr and $^{257}$Db. Finally, the combination of the observed fine structure $\\alpha$-decay from the high-spin state in $^{257}$Db with the first observation the internal decay in $^{253}$Lr requires a revision of level and decay sch"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.01262","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/2507.01262/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"}