{"paper":{"title":"The surprising influence of late charged current weak interactions on Big Bang Nucleosynthesis","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph.CO","authors_text":"E. Grohs, G. M. Fuller","submitted_at":"2016-07-10T23:50:49Z","abstract_excerpt":"The weak interaction charged current processes ($\\nu_e+n\\leftrightarrow p+e^-$, $\\bar\\nu_e +p\\leftrightarrow n+e^+$, $n\\leftrightarrow p+e^-+\\bar\\nu_e$) interconvert neutrons and protons in the early universe and have significant influence on Big Bang Nucleosynthesis (BBN) light-element abundance yields, particulary that for $^{4}{\\rm He}$. We demonstrate that the influence of these processes is still significant even when they operate well below temperatures $T\\sim0.7\\,{\\rm MeV}$ usually invoked for \"weak freeze-out,\" and in fact down nearly into the alpha-particle formation epoch ($T \\approx"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.02797","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":""},"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"}