Cosmological constraints on theories with large extra dimensions


Journal Article

In theories with large extra dimensions, constraints from cosmology lead to nontrivial lower bounds on the gravitational scale M, 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 is 10 TeV or less do deviations from the standard gravitational force law become evident at distances accessible to planned submillimeter 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 (Formula presented) corresponding to (Formula presented) well beyond the reach of these experiments. We also consider the constraint coming from graviton overclosure of the universe and derive an independent bound (Formula presented) or (Formula presented) © 1999 The American Physical Society.

Full Text

Duke Authors

Cited Authors

  • Hall, LJ; Smith, D

Published Date

  • January 1, 1999

Published In

Volume / Issue

  • 60 / 8

Electronic International Standard Serial Number (EISSN)

  • 1550-2368

International Standard Serial Number (ISSN)

  • 1550-7998

Digital Object Identifier (DOI)

  • 10.1103/PhysRevD.60.085008

Citation Source

  • Scopus