Inferring Neutrino Cross Sections Above 10 eV
نویسنده
چکیده
Extremely high energy neutrinos propagating in the atmosphere or in the Earth can originate horizontal or upgoing air-showers, respectively. We calculate the acceptances (event rate/flux) for detecting both types of events by fluorescence detectors, both spacebased as with the EUSO and OWL proposals, and ground-based, as with Auger, HiRes and Telescope Array. We depict them as a function of the neutrino-nucleon cross section, σ CC νN , and show that from the ratio of these two classes of events, the inference of σ CC
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