{
  "id": "2008.07013",
  "version": "v1",
  "published": "2020-08-16T22:13:03.000Z",
  "updated": "2020-08-16T22:13:03.000Z",
  "title": "Evidence for electroweak production of four charged leptons and two jets in proton-proton collisions at $\\sqrt{s} =$ 13 TeV",
  "authors": [
    "CMS Collaboration"
  ],
  "comment": "Submitted to PLB. All figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/SMP-20-001 (CMS Public Pages)",
  "categories": [
    "hep-ex"
  ],
  "abstract": "Evidence is presented for the electroweak (EW) production of two jets (jj) in association with two Z bosons and constraints on anomalous quartic gauge couplings are set. The analysis is based on a data sample of proton-proton collisions at $\\sqrt{s}= $ 13 TeV collected with the CMS detector in 2016-2018, and corresponding to an integrated luminosity of 137 fb$^{-1}$. The search is performed in the fully leptonic final state ZZ$\\to\\ell\\ell\\ell'\\ell'$, where $\\ell,\\ell' = $ e, $\\mu$. The EW production of two jets in association with two Z bosons is measured with an observed (expected) significance of 4.0 (3.5) standard deviations. The cross sections for the EW production are measured in three fiducial volumes and the result is $\\sigma_{\\mathrm{EW}}$(pp $\\to$ ZZjj $\\to\\ell\\ell\\ell'\\ell'$jj) = 0.33$^{+0.11}_{-0.10}$ (stat) $^{+0.04}_{-0.03}$ (syst) fb in the most inclusive volume, in agreement with the standard model prediction of 0.275 $\\pm$ 0.021 fb. Limits on anomalous quartic gauge couplings are derived in terms of the effective field theory operators T0, T1, T2, T8, and T9.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2020-08-16T22:13:03.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "proton-proton collisions",
      "leptonic final state zz",
      "field theory operators t0",
      "electroweak production",
      "anomalous quartic gauge couplings"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}