{"paper":{"title":"Photocouplings at the Pole from Pion Photoproduction","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph","nucl-ex"],"primary_cat":"nucl-th","authors_text":"C. Hanhart, D. R\\\"onchen, F. Huang, H. Haberzettl, J. Haidenbauer, K. Nakayama, M. D\\\"oring, S. Krewald, U.-G. Mei{\\ss}ner","submitted_at":"2014-01-03T12:15:53Z","abstract_excerpt":"The reactions $\\gamma p\\to\\pi^0 p$ and $\\gamma p\\to\\pi^+ n$ are analyzed in a semi-phenomenological approach up to $E\\sim2.3$ GeV. Fits to differential cross section and single and double polarization observables are performed. A good overall reproduction of the available photoproduction data is achieved. The J\\\"ulich2012 dynamical coupled-channel model -which describes elastic $\\pi N$ scattering and the world data base of the reactions $\\pi N\\to\\eta N$, $K\\Lambda$, and $K\\Sigma$ at the same time - is employed as the hadronic interaction in the final state. The framework guarantees analyticity"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.0634","kind":"arxiv","version":3},"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"}