{"paper":{"title":"The nature of the Lambda(1405)","license":"","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"E. Oset, L.S. Geng, M. D\\\"oring","submitted_at":"2007-10-31T18:40:22Z","abstract_excerpt":"We present here some results supporting the nature of the $\\Lambda(1405)$ resonance as dynamically generated from the meson baryon interaction in coupled channels and resulting from the superposition of two close-by poles. We find support for this picture in the $K^- p \\to \\pi^0 \\pi^0 \\Sigma^0 $ reaction, which shows a different shape than the one obtained from the $\\pi ^- p \\to K^0 \\pi \\Sigma $ reaction. We also call the attention to the $K^- p \\to \\gamma \\pi \\Sigma$ with $\\pi \\Sigma$ in the $\\Lambda(1405)$ region, which shows a narrow peak in the calculations around 1420 MeV. We also report "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0710.5925","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"}