Power of brane-induced gravity - art. no. 084004

We study the role of the brane-induced graviton kinetic term in theories wi th large extra dimensions. In five dimensions, we construct a model with a TeV-scale fundamental Planck mass and a flat extra dimension the size of wh ich can be astronomically large. Four-dimensional (4D) gravity on the brane is mediated by a massless zero mode, whereas the couplings of the heavy Ka luza-Klein modes to ordinary matter are suppressed. The model can manifest itself through the predicted deviations from Einstein theory in long-distan ce precision measurements of the planetary orbits. The bulk states can be a rather exotic form of dark matter, which at subsolar distances interact vi a strong 5D gravitational force. We show that the induced term changes dram atically the phenomenology of submillimeter extra dimensions. For instance, high-energy constraints from star cooling or cosmology can be substantiall y relaxed.