{"paper":{"title":"Comparative study of the scalar- and tensor-meson production in the reaction $\\gamma\\gamma^*(Q^2)\\to \\eta\\pi^0$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","nucl-th"],"primary_cat":"hep-ph","authors_text":"A.V. Kiselev, G.N. Shestakov, N.N. Achasov","submitted_at":"2015-04-28T05:17:55Z","abstract_excerpt":"The prediction of the cross section $\\sigma(\\gamma\\gamma^*(Q^2)\\to \\eta\\pi^0)$ based on the simultaneous description of the Belle data on the $\\gamma\\gamma\\to \\eta\\pi^0$ reaction and the KLOE data on the $\\phi\\to\\eta\\pi^0\\gamma$ decay is presented. The production of the scalar $a_0(980)$ and tensor $a_2(1320)$ is studied in detail. It is shown that the QCD based asymptotics of the $\\gamma^*(Q^2)\\gamma\\to a_2(1320)\\to\\eta\\pi^0$ cross section can be reached by the compensation of the contributions of $\\rho(770)$ and $\\omega(782)$ with the contributions of their radial excitations in $Q^2$ channe"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.07346","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"}