Gravireggeons in Extra Dimensions and Interaction of Ultra-high Energy Cosmic Neutrinos with Nucleons

Abstract

We present the results on non-perturbative quantum gravity effects related to extra dimensions which can be comparable, in some cases, with the SM contributions, e.g. in lepton-lepton or lepton-nucleon scattering. The case of cosmic neutrino gravitational interaction with atmospheric nucleons is considered in detail.Comment: 24 pages, LaTeX2e, references added, typos correcte