{
  "id": "0910.3790",
  "version": "v2",
  "published": "2009-10-20T09:46:48.000Z",
  "updated": "2010-01-21T09:54:53.000Z",
  "title": "Relaxing a constraint on the number of messengers in a low-scale gauge mediation",
  "authors": [
    "Ryosuke Sato",
    "T. T. Yanagida",
    "Kazuya Yonekura"
  ],
  "comment": "22pages; v2:explanations expanded in sec.3.2, reference added",
  "doi": "10.1103/PhysRevD.81.045003",
  "categories": [
    "hep-ph",
    "hep-th"
  ],
  "abstract": "We propose a mechanism for relaxing a constraint on the number of messengers in low-scale gauge mediation models. The Landau pole problem for the standard-model gauge coupling constants in the low-scale gauge mediation can be circumvented by using our mechanism. An essential ingredient is a large positive anomalous dimension of messenger fields given by a large Yukawa coupling in a conformal field theory at high energies. The positive anomalous dimension reduces the contribution of the messengers to the beta function of the standard-model gauge couplings.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2010-01-21T09:54:53.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "12.60.Jv",
      "11.15.Tk"
    ],
    "keywords": [
      "constraint",
      "low-scale gauge mediation models",
      "standard-model gauge coupling constants",
      "conformal field theory",
      "landau pole problem"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review D",
      "year": 2010,
      "month": "Feb",
      "volume": 81,
      "number": 4,
      "pages": "045003"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 22,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 834526,
      "adsabs": "2010PhRvD..81d5003S"
    }
  }
}