arXiv:hep-ph/9701339·v1·High Energy Physics — Phenomenology
New Physics Potential with a Neutrino Telescope
N. Arteaga-Romero(1) · C. Carimalo(1) · A. Nicolaidis(2) · O. Panella(3) · G. Tsirigoti(2) ((1) College de France, Paris; (2) University of Thessaloniki, Greece; (3) INFN-Perugia, Italy)
Abstract
Active Galactic Nuclei are considered as sources of neutrinos, with neutrino energies extending up to 10^{18} eV. It is expected that these highly energetic cosmic neutrinos will be detected by the neutrino telescopes, presently under construction. The detection process is very sensitive to the total muon neutrino cross-section. We examine how the total cross section changes at high energies, by the single production of excited fermions (excited muon and muon-neutrino). For parameters (masses, couplings) of the excited fermions allowed by the experimental constraints, we find that for energies of the incoming muon-neutrino above 100 TeV the cross-section for single production of (excited muon and muon-neutrino) supersedes the standard total cross-section.
Comments: 12 pages and 2 figures; typset using revtex; postscript files for the figures provided