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

• Main Author: Kravchenko, I.
• Format: Text
• Language: unknown
• Published: arXiv 2002
• Subjects: Astrophysics astro-ph; High Energy Physics - Experiment hep-ex; FOS Physical sciences; South Pole; South pole
• Online Access: https://dx.doi.org/10.48550/arxiv.astro-ph/0206371; https://arxiv.org/abs/astro-ph/0206371

Upper limits are presented on the diffuse flux of ultra-high energy $ν_e$, 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 15 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 $ν_e+N\to e+N'$ interactions. : 29 pages, 10 Figures (Latex2e), Revised version submitted to Astroparticle Physics. Revisions include: Extended discussion of systematic uncertainties. Extended discussion of event rates due to "hadronic channels". Revised limits due to changes in monte carlo simulation