{"paper":{"title":"Photoproduction of eta-prime-mesons from the Proton","license":"","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"A. Sibirtsev, Ch. Elster, J. Speth, S. Krewald","submitted_at":"2003-03-18T21:56:16Z","abstract_excerpt":"The presently available data for the reaction ${\\gamma}p{\\to}\\eta^\\prime{p}$ are analyzed in terms of a model in which the dominant production mechanism is the exchange of the vector mesons $\\omega$ and $\\rho$. To describe the data at photon energies close to the production threshold we introduce a resonance contribution due to the well established $S_{11}(1535)$ resonance. Finally we study the contributions due to nucleon exchange to the $\\eta^\\prime$ photoproduction and find, that those contributions can be seen at large angles in the differential cross section."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-th/0303044","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":""},"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"}