{
  "id": "2303.10680",
  "version": "v1",
  "published": "2023-03-19T14:58:01.000Z",
  "updated": "2023-03-19T14:58:01.000Z",
  "title": "First measurement of the top quark pair production cross section in proton-proton collisions at $\\sqrt{s}$ = 13.6 TeV",
  "authors": [
    "CMS Collaboration"
  ],
  "comment": "Submitted to the Journal of High Energy Physics. All figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-22-012 (CMS Public Pages)",
  "categories": [
    "hep-ex"
  ],
  "abstract": "The first measurement of the top quark pair ($\\mathrm{t\\bar{t}}$) production cross section in proton-proton collisions at $\\sqrt{s}$ = 13.6 TeV is presented. Data recorded with the CMS detector at the CERN LHC in Summer 2022, corresponding to an integrated luminosity of 1.21 fb$^{-1}$, are analyzed. Events are selected with one or two charged leptons (electrons or muons) and additional jets. A maximum likelihood fit is performed in event categories defined by the number and flavors of the leptons, the number of jets, and the number of jets identified as originating from b quarks. An inclusive $\\mathrm{t\\bar{t}}$ production cross section of 882 $\\pm$ 23 (stat+syst) $\\pm$ 20 (lumi) pb is measured, in agreement with the standard model prediction of 921$^{+29}_{-37}$ pb.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2023-03-19T14:58:01.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "quark pair production cross section",
      "proton-proton collisions",
      "first measurement",
      "maximum likelihood fit"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}