{
  "id": "hep-ph/9904267",
  "version": "v2",
  "published": "1999-04-08T17:10:32.000Z",
  "updated": "1999-04-23T18:14:09.000Z",
  "title": "Cosmological Constraints on Theories with Large Extra Dimensions",
  "authors": [
    "Lawrence J. Hall",
    "David Smith"
  ],
  "comment": "10 pages, references added",
  "journal": "Phys.Rev.D60:085008,1999",
  "doi": "10.1103/PhysRevD.60.085008",
  "categories": [
    "hep-ph"
  ],
  "abstract": "In theories with large extra dimensions, constraints from cosmology lead to non-trivial lower bounds on the fundamental scale M_F, corresponding to upper bounds on the radii of the compact extra dimensions. These constraints are especially relevant to the case of two extra dimensions, since only if M_F is 10 TeV or less do deviations from the standard gravitational force law become evident at distances accessible to planned sub-mm gravity experiments. By examining the graviton decay contribution to the cosmic diffuse gamma radiation, we derive, for the case of two extra dimensions, a conservative bound M_F > 110 TeV, corresponding to r_2 < 5.1 times 10^-5 mm, well beyond the reach of these experiments. We also consider the constraint coming from graviton overclosure of the universe and derive an independent bound M_F > 6.5 h^(-1/2) TeV, or r_2 < .015 h mm.",
  "revisions": [
    {
      "version": "v2",
      "updated": "1999-04-23T18:14:09.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "large extra dimensions",
      "cosmological constraints",
      "cosmic diffuse gamma radiation",
      "standard gravitational force law",
      "compact extra dimensions"
    ],
    "tags": [
      "journal article",
      "famous paper"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. D"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 10,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 498003
    }
  }
}