{
  "id": "1610.05681",
  "version": "v1",
  "published": "2016-10-18T15:54:04.000Z",
  "updated": "2016-10-18T15:54:04.000Z",
  "title": "Probing a pseudoscalar at the LHC in light of $R(D^{(*)})$ and muon g-2 excesses",
  "authors": [
    "Lei Wang",
    "Jin Min Yang",
    "Yang Zhang"
  ],
  "comment": "20 pages, 4 figures",
  "categories": [
    "hep-ph",
    "hep-ex"
  ],
  "abstract": "We study the excesses of $R(D^{(*)})$ and muon $g-2$ in the framework of a two-Higgs-doublet model with top quark flavor-changing neutral-current (FCNC) couplings. Considering the relevant theoretical and experimental constraints, we find that the $R(D^{(*)})$ and muon $g-2$ excesses can be simultaneously explained in a parameter space allowed by the constraints. In such a parameter space the pseudoscalar ($A$) has a mass between 20 GeV and 150 GeV so that it can be produced from the top quark FCNC decay $t\\to A c$. Focusing on its dominant decay $A\\to \\tau\\bar{\\tau}$, we perform a detailed simulation on $pp\\to t\\bar{t}\\to Wb Ac\\to jjbc\\tau\\bar{\\tau}$ and find that the $2\\sigma$ upper limits from a data set of 30 (100) fb$^{-1}$ at the 13 TeV LHC can mostly (entirely) exclude such a parameter space.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2016-10-18T15:54:04.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "parameter space",
      "pseudoscalar",
      "quark fcnc decay",
      "two-higgs-doublet model",
      "dominant decay"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 20,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}