{"paper":{"title":"The anomalous decay $f_1(1285)\\to\\rho\\gamma$ and related processes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"A. A. Osipov, A. A. Pivovarov, M. K. Volkov","submitted_at":"2017-05-16T14:02:34Z","abstract_excerpt":"We work out the low-energy expansion of the anomalous $f_1(1285)\\to\\rho\\gamma$ decay amplitude by using the Nambu--Jona-Lasinio model with $U(2)\\times U(2)$ chiral symmetric four-quark interactions in the one-quark-loop approximation. The related processes $f_1(1285)\\to\\omega\\gamma$, $a_1(1260)\\to\\omega\\gamma$, and $a_1(1260)\\to\\rho\\gamma$, are also considered. An effective meson Lagrangian responsible for $f_1\\rho\\gamma$, $f_1\\omega\\gamma$, $a_1\\rho\\gamma$ and $a_1\\omega\\gamma$ interactions is found. The predicted radiative decay widths, $\\Gamma_{f_1\\to\\rho^0\\gamma}=311\\ \\mbox{keV}$, $\\Gamma_"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.05711","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"}