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In this paper, we propose a new mechanism with warped extra dimension tosolve the hierarchy problem, which is parallel to the Randall-Sundrum (RS)brane scenario. Different from the RS scenario, the fundamental scale is TeVscale and the four-dimensional Planck scale is generated from the exponentialwarped extra dimension at size of a few TeV$^{-1}$. The experimentalconsequences of this scenario are very different from that of the RS scenario.In the explicit realization in the nonlocal gravity theory, there is a tower ofspin-2 excitations with mass gap $10^{-4}\text{eV}$ and they are coupled withthe gravitational scale to the standard model particles. We further discuss thepossible generalizations in other modified gravity theories. The experimentalconsequences are similar to $(4+N)$-dimensional large extra dimension but $N$can be a non-integer, which satisfies the experimental constraints more easilythan the integer large extra dimension model.

The Hierarchy Problem and New Warped Extra Dimension