{
  "id": "hep-ph/0010090",
  "version": "v2",
  "published": "2000-10-10T13:30:21.000Z",
  "updated": "2001-01-15T11:08:39.000Z",
  "title": "The t->WZb decay in the Standard Model: A Critical Reanalysis",
  "authors": [
    "G. Altarelli",
    "L. Conti",
    "V. Lubicz"
  ],
  "comment": "10 pages, 4 eps figures, LaTeX. Few references added and minor changes in the text. Results unchanged. Final version to appear on PLB",
  "journal": "Phys.Lett. B502 (2001) 125-132",
  "doi": "10.1016/S0370-2693(00)01333-2",
  "categories": [
    "hep-ph"
  ],
  "abstract": "We compute the t->WZb decay rate, in the Standard Model, at the leading order in perturbation theory, with special attention to the effects of the finite widths of the W and Z bosons. These effects are extremely important, since the t->WZb decay occurs near its kinematical threshold. They increase the value of the decay rate by orders of magnitude near threshold or allow it below the nominal threshold. We discuss a procedure to take into account the finite-width effects and compare the results with previous studies of this decay. Within the Standard Model, for a top quark mass in the range between 170 and 180 GeV, we find BR(t->WZb) ~ 2 x 10^{-6}, which makes the observation at the LHC very difficult if at all possible.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2001-01-15T11:08:39.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "standard model",
      "critical reanalysis",
      "decay rate",
      "special attention",
      "quark mass"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "LaTeX",
      "pages": 10,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 534836
    }
  }
}