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Abstract: The High Resolution Fly-s Eye Experiment HiRes measures cosmic rays CR atthe highest energies using the air fluorescence technique. As data taking onthe Dugway Proving Grounds in Western Utah is finished, the HiRes data arerelevant for cosmogenic neutrinos in two different ways. We first use our bestfit to the measured HiRes CR spectrum together with a model of theextragalactic CR sources to derive the expected cosmogenic neutrino and gammaray fluxes at Earth. We then use the HiRes data directly to set competitiveexperimental limits on the electron and tau neutrino fluxes at the highestenergies.



Author: K. Martens, for the High Resolution Fly's Eye Collaboration

Source: https://arxiv.org/



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