Large Extra Dimensions and Decaying KK Recurrences

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 Φ, whose nonzero KK… (More)

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