{"paper":{"title":"Experimental study of pp eta dynamics in the pp --> ppeta reaction","license":"","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A. Budzanowski, A. Khoukaz, A. Taschner, B. Kamys, C. Piskor-Ignatowicz, D. Grzonka, G. Schepers, H.-H. Adam, INP & Silesia U. & Georgia U.), J. Przerwa, J. Smyrski, K. Kilian, K. Nakayama, 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 Forschungszentrum & Jagellonian U. & Munster U. & Cracow","submitted_at":"2003-07-04T14:09:42Z","abstract_excerpt":"A high statistics measurement of the pp --> ppeta reaction at an excess energy of Q = 15.5 MeV has been performed at the internal beam facility COSY-11. The stochastically cooled proton beam and the used detection system allowed to determine the momenta of the outgoing protons with a precision of 4 MeV/c (sigma) in the center-of-mass frame. The determination of the four-momentum vectors of both outgoing protons allowed to derive the complete kinematical information of the ppeta-system.\n  An unexpectedly large enhancement of the occupation density in the kinematical regions of low proton-eta re"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-ex/0307005","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/0307005/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"}