{"paper":{"title":"Observation of a cusp-like structure in the $\\gamma p \\rightarrow K^+\\Sigma^0$ cross section at forward angles and low momentum transfer","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A. Bella, A. Braghieri, A. Fantini, A. Gridnev, A. Lapik P. Levi Sandri, A. Polonskiy, A. Stugelev, A.V Sarantsev, B.-E. Reitz, D. Bayadilov, D. Elsner, D. Hammann, D. Moricciani, D. Novinskiy, F. Frommberger, F. Ghio, F. Messi, G. Mandaglio, G. Scheluchin, H. Schmieden, J. Bieling, J. Hannappel, K. Kohl, M. Romaniuk, N. Kozlenko, O. Freyermuth, P. Bauer, P.L. Cole, P. Pedroni, R. Beck, R. Di Salvo, R. Messi, S. Alef, S. Goertz, T.C. Jude, T. Zimmermann, V.A Nikonov, V. Lisin, V. Nedorezov, V. Sumachev, V. Tarakanov, V. Vegna","submitted_at":"2020-06-22T17:14:07Z","abstract_excerpt":"The $\\gamma p \\rightarrow K^+\\Sigma^0$ differential cross section at extremely forward angles was measured at the BGOOD experiment. A three-quarter drop in strength over a narrow range in energy and a strong dependence on the polar angle of the $K^+$ in the centre-of-mass of the reaction is observed at a centre-of-mass energy of 1900\\,MeV. Residing close to multiple open and hidden strangeness thresholds, the structure appears consistent with meson-baryon threshold effects which may contribute to the reaction mechanism."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.12437","kind":"arxiv","version":2},"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/2006.12437/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"}