Quantum black holes at Lhc

I present a review of the state of the art of quantum black holes and of their possible phenomenology at the Lhc following X. Calmet, S.D.H. Hsu and W. Gong, Phys. Lett. B, 668 (2008) 20-23. By quantum black holes I mean black holes of mass and Schwarzchild radius of the order of the quantum gravity scale, far below the semi-classical regime. These black holes inherit SU(3) and U(1) charges from their parton progenitors and decays in two-particles final states. The model is based on a minimal assumption: the conservation of local gauge charges, while no constraint is imposed on global symmetries. It is possible to identify in that way some interesting signature for quantum black holes decaying in two-particles back-to-back final states such as jet + hard photon, jet + missing energy, jet + charged lepton and two charged leptons with different flavor. The phenomenology depends strongly on the symmetries imposed in the model.