{"paper":{"title":"Measurement of the $e^+e^- \\to \\eta\\pi^+\\pi^-$ cross section in the center-of-mass energy range 1.22--2.00 GeV with the SND detector at the VEPP-2000 collider","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"A. A. Botov, A. A. Korol, A. E. Obrazovsky, A. G. Bogdanchikov, A. G. Kharlamov, A. I. Senchenko, A. N. Skrinsky, A. S. Kupich, A. V. Berdyugin, A. V. Vasiljev, A. Yu. Barnyakov, D. A. Shtol, D. B. Shwartz, D. P. Kovrizhin, E. V. Pakhtusova, I. A. Koop, I. K. Surin, K. A. Martin, K. I. Beloborodov, L. V. Kardapoltsev, M. N. Achasov, P. Ju. Shatunov, S. I. Serednyakov, S. V. Koshuba, T. V. Dimova, V. B. Golubev, V. M. Aulchenko, V. P. Druzhinin, Yu. A. Tikhonov, Yu. M. Shatunov, Yu. V. Usov, Z. K. Silagadze","submitted_at":"2014-12-05T12:04:52Z","abstract_excerpt":"In the experiment with the SND detector at the VEPP-2000 $e^+e^-$ collider the cross section for the process $e^+e^-\\to\\eta\\pi^+\\pi^-$ has been measured in the center-of-mass energy range from 1.22 to 2.00 GeV. Obtained results are in agreement with previous measurements and have better accuracy. The energy dependence of the $e^+e^-\\to\\eta\\pi^+\\pi^-$ cross section has been fitted with the vector-meson dominance model. From this fit the product of the branching fractions $B(\\rho(1450)\\to\\eta\\pi^+\\pi^-)B(\\rho(1450)\\to e^+e^-)$ has been extracted and compared with the same products for $\\rho(1450"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.1971","kind":"arxiv","version":4},"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"}