Diffuse Neutrino Flux
  The search for a diffuse neutrino flux component from astrophysical sources complements searches for point sources. In 2010 and 2011 many new results have been published on this subject. Realistic models can now be tested with these new measurements from the leading neutrino telescope experiments. An overview over these recent results is given. 
J\"urgen Brunner
astro-ph.HE hep-ex