Cosmological Constraints on Theories with Large Extra Dimensions
| dc.creator | Hall, Lawrence J. | |
| dc.creator | Smith, David | |
| dc.date | 1999-04-08 | |
| dc.date | 1999-04-23 | |
| dc.date.accessioned | 2026-07-07T11:47:53Z | |
| dc.date.available | 2026-07-07T11:47:53Z | |
| dc.description | 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. | |
| dc.description | 10 pages, references added | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9904267 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9904267 | |
| dc.identifier | Phys.Rev.D60:085008,1999 | |
| dc.identifier | doi:10.1103/PhysRevD.60.085008 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/202728 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Cosmological Constraints on Theories with Large Extra Dimensions | |
| dc.type | text |