{"paper":{"title":"$f_1(1285)$ decays into $a_0(980)\\pi^0$, $f_0(980)\\pi^0$ and isospin breaking","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"E. Oset, F. Aceti, J. M. Dias","submitted_at":"2015-01-26T18:07:44Z","abstract_excerpt":"We evaluate the decay width for the processes $f_1(1285) \\to \\pi^0 a_0(980)$ and $f_1(1285) \\to \\pi^0 f_0(980)$ taking into account that all three resonances are dynamically generated from the meson-meson interaction, the $f_1(1285)$ from $K^* \\bar K -c.c$ and the $a_0(980)$, $f_0(980)$ from $\\pi \\eta, K \\bar K$ and $\\pi \\pi, K \\bar K$ respectively. We use a triangular mechanism similar to that of the $\\eta(1405) \\to \\pi \\pi \\eta$, which provides a decay width for $f_1(1285) \\to \\pi^0 a_0(980)$ with a branching fraction of the order of 30%, in agreement with experiment. At the same time we eva"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.06505","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"}