Stringy World Branes and Exponential Hierarchies

Details Stringy World Branes and Exponential Hierarchies Stringy World Branes and Exponential Hierarchies

2000-06-26

arxiv.org/abs/hep-th/0006204v2

JHEP 0011 (2000) 013

Physics

High Energy Physics

High Energy Physics - Theory

18 pages, harvmac; references added

Scientific paper

10.1088/1126-6708/2000/11/013

We describe heterotic string and M-theory realizations of the Randall-Sundrum (RS) scenario with $\cx N=2$ and $\cx N=1$ supersymmetry in the bulk. Supersymmetry can be broken only on the world brane, a scenario that has been proposed to account for the smallness of the cosmological constant. An interesting prediction from string duality is the generation of a warp factor for conventional type II Calabi--Yau 3-fold compactifications. On the other hand we argue that an assumption that is needed in the RS explanation of the hierarchy is hard to satisfy in the string theory context.

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