Some remarks on theories with large compact dimensions and TeV-scale quantum gravity - art. no. 105002

We comment on some implications of theories with large compactification rad ii and TeV-scale quantum gravity. These include the behavior of high-energy gravitational scattering cross sections and consequences for ultra-high-en ergy cosmic rays and neutrino scattering, the question of how to generate n aturally light neutrino masses, the issue of quark-lepton unification, the equivalence principle, and the cosmological constant. [S0556-2821(99)03108- 2].