Astrophysical upper bounds on neutrino-nucleon cross-section at energy E ≥ 3 × 1017 eV

Abstract

The possibility of experiments with cosmic neutrinos of energy E > 3 × 1017 eV is discussed. The upper bound of neutrino-nucleon cross-section σ < 9.3 × 10-30 cm2 is obtained from the zenith angular distribution of extensive air showers under some particular astrophysical assumptions. © 1974.