Limits on the Ultra-High Energy Electron Neutrino Flux from the RICE Experiment

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  • 21 June 2002
Abstract
Upper limits are presented on the diffuse flux of ultra-high energy electron neutrinos, based on analysis of data taken by the RICE experiment during August, 2000. The RICE receiver array at South Pole monitors cold ice for radio-wavelength Cherenkov radiation resulting from neutrino-induced in-ice showers. For energies above 1 EeV, RICE is an effective detector of over 25 km^3 sr. Potential signal events are separated from backgrounds using vertex location, event reconstruction, and signal shape. These are the first terrestrial limits exploiting the physics of radio Cherenkov emissions from charged-current nu_e + N -> e + N' interactions.

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