{"paper":{"title":"The processes $e^{+}e^{-} \\to \\pi\\pi(\\pi')$ in the extended NJL model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"D. G. Kostunin, M. K. Volkov","submitted_at":"2012-04-06T11:37:03Z","abstract_excerpt":"The process $e^{+}e^{-} \\to \\pi^{+}\\pi^{-}$ is described in the framework of the extended NJL model. Intermediate vector mesons $\\rho^0(770)$, $\\omega(782)$ and \\rho'(1450)$ are taken into account. Our results are in satisfactory agreement with experimental data. The prediction for the process $e^{+}e^{-} \\to \\pi\\pi'(1300)$ is given. Here the main contribution is given by the diagram with intermediate $\\rho'(1450)$ meson."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.1455","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"}