Neutrinos And Cosmic Rays From Gamma Ray Bursts
  The upper limit on the flux of ultra high energy neutrinos from gamma-ray bursts (GRBs) that was reported recently by the IceCube collaboration contradicts predictions based on the Fireball model of GRBs, but does not exclude GRBs as a main source of ultra-high energy cosmic rays. 
Arnon Dar
astro-ph.HE