Measurement of the ZZ production cross section and Z $\\to \\ell^+\\ell^-\\ell'^+\\ell'^-$ branching fraction in pp collisions at $\\sqrt s$=13 TeV
Journal
Physics Letters
Journal Volume
B763
Pages
280-303
Date Issued
2016
Author(s)
Abstract
Four-lepton production in proton-proton collisions, pp (Z/ * ) (Z/ * ) + -+ -, where , = e or , is studied at a center-of-mass energy of 13 TeV with the CMS detector at the LHC. The data sample corresponds to an integrated luminosity of 2.6 fb -1 . The ZZ production cross section, (pp ZZ) = 14.6 +1.9 -1.8 (stat) +0.5 -0.3 (syst) 0.2 (theo) 0.4 (lumi) pb, is measured for events with two opposite-sign, sameflavor lepton pairs produced in the mass region 60 4 GeV for all opposite-sign, same-flavor lepton pairs. The results are in agreement with standard model predictions.
SDGs
Type
journal article