{
  "id": "1104.1375",
  "version": "v3",
  "published": "2011-04-07T16:36:46.000Z",
  "updated": "2011-05-19T13:29:47.000Z",
  "title": "Baryonic Z' Explanation for the CDF Wjj Excess",
  "authors": [
    "Kingman Cheung",
    "Jeonghyeon Song"
  ],
  "comment": "5 pages, 2 figures; Comments added why the current Z jj and gamma jj did not see the excess; matches the published version in PRL",
  "journal": "Phys.Rev.Lett.106:211803,2011",
  "doi": "10.1103/PhysRevLett.106.211803",
  "categories": [
    "hep-ph",
    "hep-ex"
  ],
  "abstract": "The latest CDF anomaly, the excess of dijet events in the invariant-mass window 120-160 GeV in associated production with a $W$ boson, can be explained by a baryonic $Z'$ model in which the $Z'$ boson has negligible couplings to leptons. Although this $Z'$ model is hardly subject to the Drell-Yan constraint from Tevatron, it is constrained by the dijet data from UA2 ($\\sqrt{s} = 630$ GeV), and the precision measurements at LEP through the mixing with the SM $Z$ boson. We show that under these constraints this model can still explain the excess in the M_{jj} \\sim 120 - 160 GeV window, as well as the claimed cross section $\\sigma(W Z') \\sim 4$ pb. Implications at the Tevatron would be the associated production of $\\gamma Z',\\; Z Z'$, and $Z'Z'$ with the $Z' \\to jj$. We show that with tightened jet cuts and improved systematic uncertainties both $\\gamma Z' \\to \\gamma jj$ and $Z Z' \\to \\ell^+ \\ell^- j j$ channels could be useful to probe this model at the Tevatron.",
  "revisions": [
    {
      "version": "v3",
      "updated": "2011-05-19T13:29:47.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "13.85.Rm",
      "12.60.Cn",
      "14.70.Pw"
    ],
    "keywords": [
      "cdf wjj excess",
      "explanation",
      "associated production",
      "tightened jet cuts",
      "invariant-mass window"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review Letters",
      "year": 2011,
      "month": "May",
      "volume": 106,
      "number": 21,
      "pages": 211803
    },
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 895188,
      "adsabs": "2011PhRvL.106u1803C"
    }
  }
}