{
  "id": "hep-ph/0402080",
  "version": "v1",
  "published": "2004-02-08T07:58:04.000Z",
  "updated": "2004-02-08T07:58:04.000Z",
  "title": "Neutral top-pion and lepton flavor violating processes",
  "authors": [
    "Chongxing Yue",
    "Dongqi Yu",
    "Lanjun Liu"
  ],
  "comment": "latex files,16 pages, 6 figures. Submitted to Phys. Rev. D",
  "journal": "Phys.Rev. D69 (2004) 095003",
  "doi": "10.1103/PhysRevD.69.095003",
  "categories": [
    "hep-ph"
  ],
  "abstract": "In the context of topcolor-assisted techicolor(TC2) models, we study the contributions of the neutral top-pion $\\pi^{0}_{t}$ to the lepton flavor violating(LFV) processes $l_{i}\\to l_{j}\\gamma$ and $l_{i}\\to l_{j}l_{k}l_{l}$. We find that the present experimental bound on $\\mu\\to e\\gamma$ gives severe constraints on the free parameters of $TC2$ models. Taking into account these constraints, we consider the processes $l_{i}\\to l_{j}l_{k}l_{l}$ generated by top-pion exchange at the tree-level and the one loop level, and obtain $Br(\\mu\\to 3e)\\simeq 2.87\\times 10^{-14}$, $1.1\\times 10^{-15}\\leq Br(\\tau\\to 3e)\\simeq Br(\\tau\\to 2e\\mu)\\leq 4.4 \\times 10^{-15} $, $3.1\\times 10^{-15} \\leq Br(\\tau\\to 2\\mu e)\\simeq Br(\\tau\\to 3\\mu)\\leq 1.5 \\times 10^{-14}$ in most of the parameter space.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2004-02-08T07:58:04.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "13.35.Dx",
      "14.80.Cp",
      "12.60.Cn",
      "14.80.Mz"
    ],
    "keywords": [
      "lepton flavor violating processes",
      "neutral top-pion",
      "experimental bound",
      "severe constraints",
      "free parameters"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. D"
    },
    "note": {
      "typesetting": "LaTeX",
      "pages": 16,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 644136
    }
  }
}