{"paper":{"title":"Does the Sigma(1580)3/2- resonance exist?","license":"","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A.A. Kulbardis, A.F. Ramirez, A. Marusic, A. Shafi, A. Starostin, B.M.K. Nefkens, C.E. Allgower, Crystal Ball Collaboration: J. Olmsted, D.C. Peaslee, D.D. Koetke, D. Grosnick, D. Isenhower, D.M. Manley, G. Lolos, H.M. Staudenmaier, H. Spinka, I.I. Strakovsky, I. Supek, I.V. Lopatin, J.R. Comfort, J.W. Price, K. Craig, M. Clajus, M. Sadler, N.G. Kozlenko, N. Knecht, N. Phaisangittisakul, R. Manweiler, S. Kruglov, S. McDonald, S. Prakhov, T.D.S. Stanislaus, V.S. Bekrenev, W.B. Tippens, W.J. Briscoe, Z. Papandreou","submitted_at":"2003-08-06T19:44:51Z","abstract_excerpt":"Precise new data for the reaction $K^- p \\to \\pi^0 \\Lambda$ are presented in the c.m. energy range 1565 to 1600 MeV. Our analysis of these data sheds new light on claims for the $\\Sigma(1580){3/2}^-$ resonance, which (if it exists with the specified quantum numbers) must be an exotic baryon because of its very low mass. Our results show no evidence for this state."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-ex/0308005","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/nucl-ex/0308005/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}