{"arxiv_id":"0710.5925","title":"The nature of the Lambda(1405)","abstract":"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 on recent calculations of the radiative decay of the two $\\Lambda(1405)$ states and on reactions to obtain information on these decay modes. Finally, we present results for the $pp\\to p K^+\\Lambda(1405)$ reaction recently measured at ANKE/COSY and compare them with theoretical results.","primary_cat":"nucl-th","cross_cats":[],"submitted_at":"2007-10-31T18:40:22+00:00","latest_version":1,"source":"arxiv","source_label":"arXiv","source_url":null,"has_pdf":true,"has_source":false,"verdict":null,"confidence":null,"one_line_summary":null,"novelty_score":null,"correctness_risk":null,"formal_verification":null,"upvotes":0,"downvotes":0,"pith_score":0.0,"inbound_count":0,"_links":{"html":"https://pith.science/paper/0710.5925","verdict":"/api/v1/verdicts/0710.5925"}}