{"paper":{"title":"Measurement of the ZZ production cross section in p-pbar collisions at sqrt(s)=1.96 TeV","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"D0 Collaboration, et al, V. Abazov","submitted_at":"2011-04-15T14:52:54Z","abstract_excerpt":"We present a new measurement of the production cross section $\\sigma(p\\bar{p} \\rightarrow ZZ)$ at a center-of-mass energy $\\sqrt{s}=1.96$ TeV, obtained from the analysis of the four charged lepton final state $\\ell^{+}\\ell^{-}\\ell^{'+} \\ell^{'-}$ ($\\ell$, $\\ell^{'}$ = $e$ or $\\mu$). We observe ten candidate events with an expected background of $0.37 \\pm 0.13$ events. The measured cross section $\\sigma(p\\bar{p} \\to ZZ)= 1.26^{+0.47}_{-0.37} \\mathrm{(stat)} \\pm 0.14 \\mathrm{(syst)}$ pb is in agreement with NLO QCD predictions. This result is combined with a previous result from the $ZZ\\to\\ell^{"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.3078","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"}