Journal
INTERNATIONAL JOURNAL OF MODERN PHYSICS A
Volume 25, Issue 18-19, Pages 3835-3856Publisher
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0217751X10049700
Keywords
Brane-world cosmology; varying constants
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- CONICET
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We consider a brane-world cosmological model coupled to a bulk scalar field. Since the brane tension turns out to be proportional to Newton's coupling G, in such a model a time variation of G naturally occurs. By resorting to available bounds on the variation of G, the parameters of the model are constrained. The constraints coming from nucleosynthesis and CMB result to be the severest ones.
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