{"paper":{"title":"The production of K+K- pairs in proton-proton collisions at 2.83 GeV","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"nucl-ex","authors_text":"A. Dzyuba, A. Kacharava, A. Khoukaz, A. Kulikov, A. Polyanskiy, B. Lorentz, C. Wilkin, D. Chiladze, E. Ya. Paryev, H. Gao, H. J. Stein, H. Ohm, H. Stroeher, I. Keshelashvili, M. Buescher, M. Hartmann, M. Nekipelov, P. Kulessa, P. Wuestner, Q.J. Ye, R. Gebel, S. Barsov, S. Dymov, S. Merzliakov, S. Mikirtytchiants, S. Trusov, T. Mersmann, V. Hejny, V. P. Koptev, V. Serdyuk, Y. Maeda, Yu. T. Kiselev, Yu. Valdau","submitted_at":"2012-02-24T13:52:38Z","abstract_excerpt":"Differential and total cross sections for the pp -> ppK+K- reaction have been measured at a proton beam energy of 2.83 GeV using the COSY-ANKE magnetic spectrometer. Detailed model descriptions fitted to a variety of one-dimensional distributions permit the separation of the pp -> pp phi cross section from that of non-phi production. The differential spectra show that higher partial waves represent the majority of the pp -> pp phi total cross section at an excess energy of 76 MeV, whose energy dependence would then seem to require some s-wave phi-p enhancement near threshold. The non-phi data "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.5451","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":""},"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"}