Little Randall-Sundrum Model and a Multiply Warped Spacetime

Details Little Randall-Sundrum Model and a Multiply Warped Spacetime Little Randall-Sundrum Model and a Multiply Warped Spacetime

2008-04-04

arxiv.org/abs/0804.0654v2

Phys.Rev.D77:124046,2008

Physics

High Energy Physics

High Energy Physics - Theory

9 pages; v2 has added reference and typo corrected

Scientific paper

10.1103/PhysRevD.77.124046

A recent work has investigated the possibility that the mass scale for the ultraviolet (UV) brane in the Randall-Sundrum (RS) model is of the order 10^3 TeV. In this so called ``Little Randall-Sundrum'' (LRS) model the bounds on the gauge sector are less severe, permitting a lower Kaluza-Klein scale and cleaner discovery channels. However employing a low UV scale nullifies one major appeal of the RS model; namely the elegant explanation of the hierarchy between the Planck and weak scales. In this work we show that by localizing the gauge, fermion and scalar sector of the LRS model on a five dimensional slice of a doubly warped spacetime one may obtain the low UV brane scale employed in the LRS model and motivate the weak-Planck hierarchy. We also consider the generalization to an n-warped spacetime.

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