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Quantum Gravity phenomenology: achievements and challenges (1105.6234v1)
Published 31 May 2011 in astro-ph.HE, gr-qc, and hep-ph
Abstract: Motivated by scenarios of quantum gravity, Planck-suppressed deviations from Lorentz invariance are expected at observable energies. Ultra-High-Energy Cosmic Rays, the most energetic particles ever observed in nature, yielded in the last two years strong constraints on deviations suppressed by $O(E{2}/\Mpl{2})$ and also, for the first time, on space-time foam, stringy inspired models of quantum gravity. We review the most important achievements and discuss future outlooks.
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