{
  "id": "1912.06344",
  "version": "v1",
  "published": "2019-12-13T07:28:43.000Z",
  "updated": "2019-12-13T07:28:43.000Z",
  "title": "LHC constraints on $W^\\prime,~Z^\\prime$ that couple mainly to third generation fermions",
  "authors": [
    "Alper Hayreter",
    "Xiao-Gang He",
    "German Valencia"
  ],
  "comment": "15 pages, 7 figures",
  "categories": [
    "hep-ph"
  ],
  "abstract": "We use the results of CMS and ATLAS searches for resonances that decay to $\\tau\\nu$ or $tb$ and $\\tau^+\\tau^-$ or $t\\bar t$ final states to constrain the parameters of non-universal $W^\\prime$ and $Z^\\prime$ gauge bosons that couple preferentially to the third generation. For the former we consider production from $c\\bar{b}$ annihilation and find very weak constraints on the strength of the interaction and only for the mass range between 800 and 1100 GeV from the $pp \\to \\tau_h p_T^{\\rm miss}$ channel. The constraints on the latter are much stronger and arise from both $t\\bar t$ and $\\tau^+\\tau^-$ production. Treated separately, we find that the weak constraints on the $W^\\prime$ still permit an explanation of the $R(D^{(\\star)})$ anomalies with a light sterile neutrino whereas the stronger constraints on the $Z^\\prime$ exclude significant light sterile neutrino contributions to the $K \\to \\pi \\nu \\bar\\nu$ rates. Within specific models the masses of $W^\\prime$ and $Z^\\prime$ are of course related and we briefly discuss the consequences.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2019-12-13T07:28:43.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "third generation fermions",
      "lhc constraints",
      "exclude significant light sterile neutrino",
      "significant light sterile neutrino contributions",
      "weak constraints"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 15,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}