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Large extra dimensions and decaying Kaluza-Klein recurrences
- Source :
- Physical Review D. 68
- Publication Year :
- 2003
- Publisher :
- American Physical Society (APS), 2003.
-
Abstract
- We suggest the possibility that in ADD type brane-world scenarios, the higher KK excitations of the graviton may decay to lower ones owing to a breakdown of the conservation of extra dimensional “momenta” and study its implications for astrophysics and cosmology. We give an explicit realization of this idea with a bulk scalar field �, whose nonzero KK modes acquire vacuum expectation values. This scenario helps to avoid constraints on large extra dimensions that come from gamma ray flux bounds in the direction of nearby supernovae as well as those coming from diffuse cosmological gamma ray background. It also relaxes the very stringent limits on reheat temperature of the universe in ADD models.
- Subjects :
- Physics
Nuclear and High Energy Physics
Particle physics
010308 nuclear & particles physics
Astrophysics::High Energy Astrophysical Phenomena
Spontaneous symmetry breaking
Kaluza–Klein theory
Graviton
01 natural sciences
7. Clean energy
Cosmology
General Relativity and Quantum Cosmology
Supernova
0103 physical sciences
Bibliography
Large extra dimension
010306 general physics
Scalar field
Subjects
Details
- ISSN :
- 10894918 and 05562821
- Volume :
- 68
- Database :
- OpenAIRE
- Journal :
- Physical Review D
- Accession number :
- edsair.doi...........17d565d5dc4d18204f01f7f1ad17f713