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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. 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