{
  "id": "1104.1917",
  "version": "v1",
  "published": "2011-04-11T11:53:46.000Z",
  "updated": "2011-04-11T11:53:46.000Z",
  "title": "New Color-Octet Vector Boson Revisit",
  "authors": [
    "Xiao-Ping Wang",
    "You-Kai Wang",
    "Bo Xiao",
    "Jia Xu",
    "Shou-hua Zhu"
  ],
  "comment": "8 pages, 3 EPS figures",
  "journal": "Phys.Rev.D83:115010,2011",
  "doi": "10.1103/PhysRevD.83.115010",
  "categories": [
    "hep-ph",
    "hep-ex"
  ],
  "abstract": "Motivated by CDF recent measurements on di-jet invariant mass spectrum where di-jet is associated production with charged leptons ($e/\\mu$) and missing energy, we re-examine the previous proposed massive color-octet axial-vector-like boson $Z_c$. Our simulation showed that the di-jet bump around 120-160 GeV can be induced by $Z_c$ with effective coupling $g_{Z_c q \\bar q} =0.2 g_s$ (q represents the quark other than top and $g_s$ is the strong coupling constant). Moreover our numerical investigation indicated that the top quark forward-backward asymmetry $A_{FB}^t$ can be reproduced without distorting shape of differential cross section $d\\sigma/d M_{t\\bar t}$, provided that the $Z_c$ and top quark coupling is appropriately chosen ($g_{Z_c t \\bar t} \\simeq 4.5 g_{Z_c q \\bar q}$). Our results also showed that the theoretical $A_{FB}^t$ as functions of $\\Delta y$ and $M_{t\\bar t}$ can be consistent with data within $1\\sigma$ and $1.8\\sigma$ respectively.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2011-04-11T11:53:46.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "12.60.Cn"
    ],
    "keywords": [
      "color-octet vector boson revisit",
      "di-jet invariant mass spectrum",
      "differential cross section",
      "quark forward-backward asymmetry",
      "strong coupling constant"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review D",
      "year": 2011,
      "month": "Jun",
      "volume": 83,
      "number": 11,
      "pages": 115010
    },
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 895687,
      "adsabs": "2011PhRvD..83k5010W"
    }
  }
}