Exponential and power-law hierarchies from supergravity

Details Exponential and power-law hierarchies from supergravity Exponential and power-law hierarchies from supergravity

1999-06-25

arxiv.org/abs/hep-th/9906204v1

Phys.Lett. B469 (1999) 123-128

Physics

High Energy Physics

High Energy Physics - Theory

10 pages

Scientific paper

10.1016/S0370-2693(99)01183-1

We examine how a d-dimensional mass hierarchy can be generated from a d+1-dimensional set up. We consider a d+1--dimensional scalar, the hierarchon, which has a potential as in gauged supergravities. We find that when it is in its minimum, there exist solutions of Horava-Witten topology R^d X S^1/Z^2 with domain walls at the fixed points and anti-de Sitter geometry in the bulk. We show that while standard Poincare supergravity leads to power-law hierarchies, (e.g. a power law dependence of masses on the compactification scale), gauged supergravity produce an exponential hierarchy as recently proposed by Randall and Sundrum.

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