{"paper":{"title":"Radiative corrections for Dalitz decays of $\\pi^0$, $\\eta^{(\\prime)}$ and $\\Sigma^0$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Tom\\'a\\v{s} Husek (IFIC, Valencia)","submitted_at":"2019-11-15T18:50:01Z","abstract_excerpt":"We briefly summarize current experimental and theoretical results on the $\\pi^0$ Dalitz decay, including the new value for the ratio $R={\\Gamma(\\pi^0\\to e^+e^-\\gamma(\\gamma))}/{\\Gamma(\\pi^0\\to\\gamma\\gamma)}=11.978(6)\\times10^{-3}$, which is by two orders of magnitude more precise than the current PDG average. Furthermore, we discuss radiative corrections for the Dalitz decays $\\eta^{(\\prime)}\\to\\ell^+\\ell^-\\gamma$ beyond the soft-photon approximation. The corrections inevitably depend on the $\\eta^{(\\prime)}\\to\\gamma^*\\gamma^{(*)}$ transition form factors. Finally, we present (inclusive) radia"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1911.06820","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1911.06820/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}