{"paper":{"title":"Energy dependence of the Lambda/Sigma0 production cross section ratio in proton proton interactions","license":"","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A. Budzanowski, A. Khoukaz, A. Strzalkowski, A. Taschner, B. Kamys, C. Piskor-Ignatowicz, C. Quentmeier, D. Grzonka, Forschungszentrum & Jagellonian U. & Munster U. & Cracow, G. Schepers, H.-H. Adam, INP & Silesia U. & ZEL, J. Haidenbauer, J. Przerwa, J. Smyrski, Julich), K. Kilian, L. Jarczyk, M. Janusz, M. Siemaszko, M. Wolke, P. Kowina, P. Moskal, P. Winter, P. Wustner, R. Czyzykiewicz, R. Santo, S. Steltenkamp, T. Rozek, T. Sefzick, W. Oelert, W. Zipper (Julich","submitted_at":"2004-02-06T15:00:28Z","abstract_excerpt":"The production of the Lambda and Sigma0 hyperons has been measured via the pp->pK+Lambda / Sigma0 reaction at the internal COSY-11 facility in the excess energy range between 14 and 60 MeV. The transition of the Lambda/Sigma0 cross section ratio from about 28 at Q<=13 MeV to the high energy level of about 2.5 is covered by the data showing a strong decrease of the ratio between 10 and 20 MeV excess energy.\n  Effects from the final state interactions in the p-Sigma0 channel seem to be much smaller compared to the p-Lambda one. Estimates of the effective range parameters are given for the N-Lamb"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-ex/0402008","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/nucl-ex/0402008/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"}