{"paper":{"title":"$f_1 (1285) \\to e^+e^-$ decay and direct $f_1$ production in $e^+e^-$ collisions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"A.S. Rudenko","submitted_at":"2017-07-03T13:38:01Z","abstract_excerpt":"The width of the $f_1 (1285) \\to e^+e^-$ decay is calculated in the vector meson dominance model. The result depends on the relative phase between two coupling constants describing $f_1 \\to \\rho^0\\gamma$ decay. The width $\\Gamma (f_1 \\to e^+e^-)$ is estimated to be $\\simeq 0.07-0.19$ eV. Direct $f_1$ production in $e^+e^-$ collisions is discussed, and the $e^+e^- \\to f_1\\to a_0 \\pi \\to \\eta \\pi \\pi$ cross section is calculated. Charge asymmetry in the $e^+e^- \\to \\eta \\pi^+ \\pi^-$ reaction due to interference between $e^+e^- \\to f_1$ and $e^+e^- \\to \\eta \\rho^0$ amplitudes is studied."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.00545","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"}