{"paper":{"title":"NLO prediction for the decays $\\tau \\to \\ell \\ell'\\ell' \\nu \\bar \\nu$ and $\\mu \\to e e e \\nu \\bar\\nu$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Matteo Fael","submitted_at":"2018-11-27T13:25:32Z","abstract_excerpt":"These proceedings review the differential decay rates and the branching ratios of the tau and muon decays $\\tau \\to \\ell \\ell' \\ell' \\nu \\bar\\nu$ (with $\\ell,\\ell'=\\mu,e$) and $\\mu \\to e e e \\nu \\bar \\nu$ in the Standard Model at NLO. These five-body leptonic decays are a tool to study the Lorentz structure of weak interactions and to test lepton flavour universality. They are also a source of SM background to searches for the lepton-flavour-violating decays $\\mu \\to e e e$ and $\\tau \\to \\ell \\ell' \\ell'$. Even if the shift in the branching ratios induced by radiative corrections turns out to "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.10965","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"}