{"paper":{"title":"The anomalous four-point interaction in the radiative leptonic $\\tau$ decay","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"D. Epifanov, J. Sasaki, N. Shimizu","submitted_at":"2017-03-15T04:29:09Z","abstract_excerpt":"As one of the extensions of the Standard Model, we investigate the anomalous four-point $\\tau-W-\\nu_\\tau-\\gamma$ scalar- and tensor-type interactions, which originate from the gauge invariant dimension-five operators. The coupling constants are constrained by the measured branching ratio of the $\\tau^- \\rightarrow \\mu^- \\nu_{\\tau} \\bar{\\nu_\\mu} \\gamma$ decay: $-4.9<\\kappa_\\tau^S<9.4$ and $-1.4<\\kappa_\\tau^T<2.8$ at the 95% confidence level for the scalar and tensor interactions, respectively."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.04920","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"}