Matthew D. Kistler, Todor Stanev, Hasan Yuksel
The IceCube experiment recently announced the first detection of multi-PeV neutrinos, which cannot easily be explained by atmospheric or cosmogenic fluxes. We examine whether these neutrinos originate from the same sources as ultrahigh-energy cosmic rays. We find that producing the requisite neutrino flux through photopion production in the source leads to a proton flux at the level of cosmic-ray data at ~10^18 eV in a constrained scenario where neutrinos only arise from pi^+ decays. In more general cases the proton yield is much lower, requiring a dominant class of accelerator that allows cosmic rays to escape without significant losses.
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http://arxiv.org/abs/1301.1703
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