{
  "id": "hep-ph/9910430",
  "version": "v2",
  "published": "1999-10-21T12:54:54.000Z",
  "updated": "1999-11-26T08:36:31.000Z",
  "title": "On the Dynamical Symmetry Breaking of the Electroweak Interactions by the Top Quark",
  "authors": [
    "V. H. Nguyen",
    "X. Y. Pham"
  ],
  "comment": "Latex2e 9 pages, 2 postscript figures, 1 postscript logo",
  "journal": "Phys.Lett.B476:331-338,2000",
  "doi": "10.1016/S0370-2693(00)00142-8",
  "categories": [
    "hep-ph"
  ],
  "abstract": "We discuss the electroweak gauge symmetry breaking triggered by a new strong attractive interaction to condensate fermion-antifermion, and topcolor is a prototype. To deal with the fermion pairing, a general method based on the Hubbard-Stratonovich transformation in the functional integral approach is used. We derive a formula which relates the $W^\\pm$, $Z^0$ weak boson masses to that of the condensated fermion, thus generalizing the Pagels-Stokar formula obtained in QCD. The custodial SU(2) electroweak symmetry turns out to be systematically violated, the deviation of $\\rho\\equiv M_W^2/(M_Z^2\\cos^2\\theta_W) $ from unity is related to the new physics scale $\\Lambda$. Some phenomenological consequences of the top-pair condensation models are discussed. Distinctive signatures of the $\\bar{t}t$ scalar bound state, a Higgs boson like denoted by $H_t$, are the dominant decay modes $H_t\\to \\Upsilon +\\gamma ,$ $H_t\\to \\Upsilon +Z^0$, and $H_t \\to B^* +\\bar{B}^*$.",
  "revisions": [
    {
      "version": "v2",
      "updated": "1999-11-26T08:36:31.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "11.15.Ex",
      "11.15.Tk",
      "12.60.Fr",
      "14.80.Cp"
    ],
    "keywords": [
      "dynamical symmetry breaking",
      "electroweak interactions",
      "gauge symmetry breaking",
      "dominant decay modes",
      "electroweak gauge symmetry"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "LaTeX",
      "pages": 9,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 508957
    }
  }
}