{
  "id": "hep-ph/0101131",
  "version": "v3",
  "published": "2001-01-12T17:11:10.000Z",
  "updated": "2001-03-15T12:24:16.000Z",
  "title": "Cosmological Constraints on Large Extra Dimensions",
  "authors": [
    "Malcolm Fairbairn"
  ],
  "comment": "8 pages, 2 figures, accepted in PLB",
  "journal": "Phys.Lett.B508:335-339,2001",
  "doi": "10.1016/S0370-2693(01)00501-9",
  "categories": [
    "hep-ph",
    "astro-ph",
    "hep-th"
  ],
  "abstract": "We calculate the production of massive Kaluza-Klein(KK) modes via nucleon-nucleon gravi-bremsstrahlung in the early universe. Overproduction of these states would result in early matter domination and therefore a low age for the universe so it is possible to place constraints on the number and size of large extra dimensions. The constraints are stronger than those from Sn1987a - for 2 large extra dimensions and T_QCD=170 MeV, we show the fundamental scale must be larger than 1,000 TeV.",
  "revisions": [
    {
      "version": "v3",
      "updated": "2001-03-15T12:24:16.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "large extra dimensions",
      "cosmological constraints",
      "nucleon-nucleon gravi-bremsstrahlung",
      "early matter domination",
      "low age"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 552076
    }
  }
}