{"paper":{"title":"The $\\gamma p \\to n a^+_2(1320) \\to n \\rho^0 \\pi^+$ reactions within an effective Lagrangian approach","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex","nucl-th"],"primary_cat":"hep-ph","authors_text":"Hong-Fei Zhang, Ju-Jun Xie, Jun He, Xu-Rong Chen, Yin Huang","submitted_at":"2013-08-15T13:18:58Z","abstract_excerpt":"We investigate the $a_2(1320)$ meson photon production in the $\\gamma p \\to n a^+_2(1320)$ and $\\gamma p \\to n \\rho^0 \\pi^+$ reactions within the effective Lagrangian method. For $\\gamma p \\to n a^+_2(1320)$ reaction, by considering the contributions only from the $t-$channel $\\pi^+$ exchange, we get a fairly good description of the current experimental total cross section data. We also studied the $\\gamma p \\to n \\rho^0 \\pi^+$ reaction, which mainly contribute to the $\\gamma p \\to n \\pi^+ \\pi^+ \\pi^-$ reaction. The latter reaction has measured by the CLAS Collaboration. The total cross sectio"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.3382","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"}