{"paper":{"title":"A data-driven approach to $\\pi^{0}, \\eta$ and $\\eta^{\\prime}$ single and double Dalitz decays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Rafel Escribano, Sergi Gonz\\`alez-Sol\\'is","submitted_at":"2015-11-16T11:15:41Z","abstract_excerpt":"The dilepton invariant mass spectra and integrated branching ratios of the single and double Dalitz decays $\\mathcal{P}\\to\\ell^{+}\\ell^{-}\\gamma$ and $\\mathcal{P}\\to\\ell^{+}\\ell^{-}\\ell^{+}\\ell^{-}$ ($\\mathcal{P}=\\pi^{0}, \\eta, \\eta^{\\prime}$; $\\ell=e$ or $\\mu$) are predicted by means of a data-driven approach based on the use of rational approximants applied to $\\pi^{0}, \\eta$ and $\\eta^{\\prime}$ transition form factor experimental data in the space-like region."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.04916","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"}