{"paper":{"title":"Possible $\\Sigma^*(1/2^-)$ in the initial-state polarized $\\gamma N\\rightarrow K^{+} \\Sigma^*(1385) \\rightarrow K^{+} \\pi \\Lambda$ reaction near threshold","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph","nucl-ex"],"primary_cat":"nucl-th","authors_text":"Bing-Song Zou, Yun-Hua Chen","submitted_at":"2013-02-22T02:17:56Z","abstract_excerpt":"By using an effective Lagrangian method, we study the effects of a newly proposed $\\Sigma^*(1/2^-)$ state with mass around 1380 MeV in the initial-state polarized $\\gamma N\\rightarrow K^{+} \\Sigma^*(1385) \\rightarrow K^{+} \\pi \\Lambda$ process near threshold. The theoretical predictions for the helicity cross sections $\\sigma_{3/2}$, $\\sigma_{1/2}$ as well as their ratios, and the angular distributions of $\\pi$ in the $\\pi\\Lambda$ center-of-mass system are given. It is found that assuming $\\Sigma^*(1/2^-)$ exists or not, these physical quantities are distinctly different. So our results could "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.5466","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"}