{"paper":{"title":"Measurement of the $e^{+}e^{-}\\rightarrow\\eta\\pi^{+}\\pi^{-}$ cross section with the CMD-3 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. Grebenuk, A.A. Korobov, A.A. Ruban, A.A. Talyshev, A.E. Bondar, A.E. Kuzmenko, A.E. Ryzhenenkov, A.I. Senchenko, A.I. Vorobiov, A.L. Erofeev, A.L. Sibidanov, A.N. Amirkhanov, A.N. Kirpotin, A.N. Kozyrev, A.S. Kuzmin, A.S. Popov, A.V. Anisenkov, A.V. Bragin, A.V. Otboev, A.V. Semenov, B.A. Shwartz, D.A. Epifanov, D.B. Shwartz, D.E. Berkaev, D.N. Grigoriev, D.N. Shemyakin, E.A. Kozyrev, E.P. Solodov, F.J. Grancagnolo, F.V. Ignatov, G.P. Razuvaev, G.V. Fedotovich, I.A. Koop, I.B. Logashenko, I.M. Zemlyansky, K.Yu. Mikhailov, L.B. Epshteyn, N.M. Ryskulov, N.S. Bashtovoy, O.A. Kovalenko, P.A. Lukin, P.P. Krokovny, P.Yu. Shatunov, R.R. Akhmetshin, S.E. Gayazov, S.I. Eidelman, S.S. Gribanov, S.S. Tolmachev, S.V. Karpov, V.E. Shebalin, V.F. Kazanin, V.L. Ivanov, V.M. Aulchenko, V.M. Titov, V.Sh. Banzarov, V.S. Okhapkin, Yu.A. Rogovsky, Yu.M. Shatunov, Yu.N. Pestov, Yu.V. Yudin","submitted_at":"2019-07-18T11:49:19Z","abstract_excerpt":"The cross section of the process $e^{+}e^{-}\\rightarrow\\eta\\pi^{+}\\pi^{-}$ is measured using the data collected with the CMD-$3$ detector at the VEPP-$2000$ collider in the center-of-mass energy range from $1.1$ to $2.0$ GeV. The decay mode $\\eta\\rightarrow\\gamma\\gamma$ is used for $\\eta$ meson reconstruction in the data sample corresponding to an integrated luminosity of $78.3$ pb$^{-1}$. The energy dependence of the $e^{+}e^{-}\\rightarrow\\eta\\pi^{+}\\pi^{-}$ cross section is fitted within the framework of vector meson dominance in order to extract the $\\Gamma(\\rho(1450)\\rightarrow{^{+}e^{-}})"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.08002","kind":"arxiv","version":5},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1907.08002/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}