Horizontal Muons and a Search for AGN Neutrinos in Soudan 2

Abstract

We measure the horizontal ($|\cos ({\theta }_z)|<0.14$) neutrino-induced muon flux in Soudan 2 to be $4.01\pm 0.50\pm 0.30\times 10^{-13}$cm${}^{-2}$sr${}^{-1}$s${}^{-1}$. From the absence of horizontal muons with large energy loss, we set a limit on the flux of muon neutrinos from Active Galactic Nuclei.

18 pages 12 figures