Neutrino Cross Sections and Future Observations of Ultrahigh-Energy Cosmic Rays
Neutrino Cross Sections and Future Observations of Ultrahigh-Energy Cosmic Rays
We show that future detectors of ultrahigh-energy cosmic-ray neutrinos will be able to measure neutrino-nucleon cross section, sigma(nu N), at energies as high as 10(11) GeV or higher. We find that the flux of upgoing charged leptons per unit surface area produced by neutrino interactions below the surface is inversely …