{"paper":{"title":"The process $e^+e^- \\to \\eta(\\eta')2\\pi$ in the extended NJL model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"A.B. Arbuzov, D.G. Kostunin, M.K. Volkov","submitted_at":"2013-10-31T13:04:55Z","abstract_excerpt":"Process of electron-positron annihilation into $\\eta(\\eta')2\\pi$ is described within the extended NJL model in the energy range up to about 2 GeV. Contributions of intermediate vector mesons $\\rho(770)$ and $\\rho(1450)$ are taken into account. Results for the $\\eta2\\pi$ channel are found to be in a reasonable agreement with experimental data. Predictions for production of $\\eta' 2\\pi$ are given. The corresponding estimations for decays $\\tau\\to\\eta(\\eta')2\\pi\\nu$ are given in Appendix."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.8484","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"}