paper

Measurements of pp ZZ production cross sections and constraints on anomalous triple gauge couplings at 13 TeV

arXiv:2009.01186 · doi:10.1140/epjc/s10052-020-08817-8

Abstract

The production of Z boson pairs in proton-proton (pp) collisions, pp (Z/)(Z/) 2 2, where = e or , is studied at a center-of-mass energy of 13 TeV with the CMS detector at the CERN LHC. The data sample corresponds to an integrated luminosity of 137 fb, collected during 2016-2018. The ZZ production cross section, (pp ZZ) = 17.2 0.3 (stat) 0.5 (syst) 0.4 (theo) 0.3 (lumi) pb, measured for events with two pairs of opposite-sign, same-flavor leptons produced in the mass region 60 120 GeV is consistent with standard model predictions. Differential cross sections are also measured and agree with theoretical predictions. The invariant mass distribution of the four-lepton system is used to set limits on anomalous ZZZ and ZZ couplings.

Replaced with the published version. Added the journal reference and the DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/SMP-19-001 (CMS Public Pages)

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