{"paper":{"title":"Discovery of the $^{151}$Eu $\\alpha$ decay","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-th","physics.ins-det"],"primary_cat":"nucl-ex","authors_text":"A.N. Shekhovtsov, B.P. Nazarenko, C. Rusconi, C. Tomei, F. Bellini, F. Orio, G. Pessina, G. Piperno, I. Dafinei, J.W. Beeman, L. Cardani, L. Gironi, L. Pattavina, M.B. Kosmyna, M.L. Di Vacri, M. Vignati, N. Casali, S. Di Domizio, S. Nisi, S. Pirro, S.S. Nagorny","submitted_at":"2013-11-12T16:41:35Z","abstract_excerpt":"We report on the first compelling observation of $\\alpha$ decay of $^{151}$Eu to the ground state of $^{147}$Pm. The measurement was performed using a 6.15 g Li$_6$Eu(BO$_3$)$_3$ crystal operated as a scintillating bolometer. The Q-value and half-life measured are: Q = 1948.9$\\pm 6.9(stat.) \\pm 5.1(syst.)$ keV, and T$_{1/2}=\\left( 4.62\\pm0.95(stat.)\\pm0.68(syst.)\\right) \\times 10^{18}$ y . The half-life prediction of nuclear theory using the Coulomb and proximity potential model are in good agreement with this experimental result."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.2834","kind":"arxiv","version":3},"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"}