{"paper":{"title":"First Accurate Normalization of the $\\beta$-delayed $\\alpha$ Decay of $^{16}$N and Implications for the $^{12}$C$(\\alpha,\\gamma)^{16}$O Astrophysical Reaction Rate","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A. N. Andreyev, A. Negret, A. Perea, B. Jonson, C. Mihai, C. Sotty, D. S. Judson, D. T. Doherty, E. R. Christensen, H. B. S{\\o}rensen, H. de Witte, H. Johansson, H. O. U. Fynbo, H. T\\\"ornqvist, I. Lazarus, I. Marroquin, J. A. Swartz, J. H. Jensen, J. Konki, K. Riisager, L. J. Harkness-Brennan, L. M. Fraile, M. C. Gallardo, M. Huyse, M. J. G. Borge, M. Madurga, M. Munch, M. V. Lund, N. Hubbard, N. Marginean, N. Warr, O. S. Kirsebom, O. Sorlin, O. Tengblad, P. D\\'iaz Fern\\'andez, P. Rahkila, P. T. Greenlees, P. Van Duppen, R. D. Page, R. Lica, R. Marginean, T. A. Berry, V. Pucknell, V. Vedia","submitted_at":"2018-04-05T19:51:47Z","abstract_excerpt":"The $^{12}\\text{C}(\\alpha,\\gamma){}^{16}\\text{O}$ reaction plays a central role in astrophysics, but its cross section at energies relevant for astrophysical applications is only poorly constrained by laboratory data. The reduced $\\alpha$ width, $\\gamma_{11}$, of the bound $1^-$ level in $^{16}$O is particularly important to determine the cross section. The magnitude of $\\gamma_{11}$ is determined via sub-Coulomb $\\alpha$-transfer reactions or the $\\beta$-delayed $\\alpha$ decay of $^{16}$N, but the latter approach is presently hampered by the lack of sufficiently precise data on the $\\beta$-de"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.02040","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"}