{"paper":{"title":"The branching fraction measurements of $J/\\psi$ decay into $\\rho \\eta$ and $\\phi \\eta$ final states","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"A. A. Katcin, A. A. Kovalenko, A. A. Krasnov, A. A. Murasev, A. A. Osipov, A. A. Ruban, A. A. Talyshev, A. A. Zhukov, A. E. Blinov, A. E. Bondar, A. G. Shamov, A. I. Vorobiov, A. K. Barladyan, A. L. Maslennikov, A. M. Sukharev, A. N. Skrinsky, A. N. Zhuravlev, A. R. Buzykaev, A. V. Bobrov, A. V. Bogomyagkov, A. V. Pavlenko, A. V. Polyanskiy, A. V. Sokolov, A. Yu. Barnyakov, B. A. Shwartz, D. A. Kyshtymov, D. A. Maksimov, D. A. Shvedov, D. A. Zubkov, D. E. Berkaev, D. N. Grigoriev, D. P. Sukhanov, D. V. Dorokhova, D. V. Senkov, D. Yu. Bolkhovityanov, E. A. Bekhtenev, E. A. Kravchenko, E. A. Simonov, E. B. Levichev, E. M. Baldin, E. V. Kozyrev, E. V. Starostina, F. A. Emanov, G. A. Savinov, G. N. Baranov, G. V. Karpov, G. Ya. Kurkin, I. A. Kuyanov, I. A. Morozov, I. B. Nikolaev, I. I. Morozov, I. N. Okunev, I. V. Ovtin, I. Yu. Basok, KEDR Collaboration, K. G. Petrukhin, K. V. Astrelina, K. Yu. Karukina, K. Yu. Todyshev, L. I. Shekhtman, M. A. Skamarokha, M. Yu. Barnyakov, N. N. Lebedev, O. I. Meshkov, O. L. Rezanova, O. V. Anchugov, O. V. Belikov, P. A. Piminov, P. V. Kasyanenko, P. V. Logachev, R. Z. Mamutov, S. A. Nikitin, S. B. Oreshkin, S. E. Karnaev, S. G. Pivovarov, S. V. Peleganchuk, S. V. Sinyatkin, T. A. Kharlamova, T. V. Maltsev, V. A. Kiselev, V. A. Tayursky, V. E. Blinov, V. F. Kulikov, V. G. Prisekin, V. I. Telnov, V. L. Dorokhov, V. M. Aulchenko, V. M. Borin, V. M. Malyshev, V. N. Kudryavtsev, V. N. Zhilich, V. S. Bobrovnikov, V. V. Anashin, V. V. Balakin, V. V. Kaminskiy, V. V. Zhulanov, Yu. A. Tikhonov, Yu. V. Usov","submitted_at":"2025-06-10T05:17:16Z","abstract_excerpt":"We present measurements of the branching fractions for the $J/\\psi$ meson decays into the $\\rho\\eta$ and $\\phi\\eta$ final states, based on data collected with the KEDR detector at the VEPP-4M collider. The data set consisted of 4.93 million $J/\\psi$ events. The resulting branching fractions are:\n  - $\\mathcal{B}(J/\\psi \\to \\rho\\eta) = (2.04 \\pm 0.58 \\pm 0.39)\\times 10^{-4}$,\n  - $\\mathcal{B}(J/\\psi \\to \\phi\\eta) = (7.82 \\pm 1.17 \\pm 0.58) \\times 10^{-4}$,\n  where the first uncertainty is statistical and the second one is systematic.\n  In the study of the $\\rho\\eta$ decay, the dynamics of $J/\\p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.08453","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2506.08453/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"}