{"paper":{"title":"Comparison of Isoscalar Vector Meson Production Cross Sections in Proton-Proton Collisions","license":"","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A. Erhardt, A. Filippi, A. Gillitzer, A. Wilms, Ch. Plettner, C. Pizzolotto, D. Hesselbarth, E. Doroshkevich, E. Kuhlmann, E. Roderburg, G.J. Sun, H. Clement, H. Freiesleben, H.P. Morsch, J. Dietrich, J. Ritman, K. Ehrhardt, K. Kilian, K. M\\\"oller, K.-Th. Brinkmann, L. Karsch, M. Abdel-Bary, M. Fritsch, M. Schulte-Wissermann, M. Steinke, M. Wagner, P. Michel, P. Sch\\\"onmeier, P. Wintz, P. Zupranski, R. J\\\"akel, R. Wenzel, S. Abdel-Samad, S. Dshemuchadse, S. Marcello, S. Wirth, The COSY-TOF collaboration, W. Eyrich, W. Schroeder, W. Ullrich","submitted_at":"2007-02-28T13:27:46Z","abstract_excerpt":"The reaction $ pp\\to pp\\bf \\omega$ was investigated with the TOF spectrometer, which is an external experiment at the accelerator COSY (Forschungszentrum J\\\"ulich, Germany). Total as well as differential cross sections were determined at an excess energy of $93 MeV$ ($p_{beam}=2950 MeV/c$). Using the total cross section of $(9.0\\pm 0.7 \\pm1.1) \\mu b$ for the reaction $ pp\\to pp\\omega$ determined here and existing data for the reaction $pp\\to pp\\bf \\phi$, the ratio $\\mathcal{R}_{\\phi/\\omega}=\\sigma_\\phi/\\sigma_\\omega$ turns out to be significantly larger than expected by the Okubo-Zweig-Iizuka "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-ex/0702059","kind":"arxiv","version":1},"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/nucl-ex/0702059/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"}