The aperture for UHE tau neutrinos of the Auger fluorescence detector using a Digital Elevation Map

Abstract

We perform a new study of the chances of the fluorescence detector (FD) at the Pierre Auger Observatory to detect the tau leptons produced by Earth-skimming ultra high energy tau neutrinos. We present a new and more detailed evaluation of the effective aperture of the FD that considers a reliable fiducial volume for the experimental set up. In addition, we take into account the real elevation profile of the area near Auger. We find a significant increase in the number of expected events with respect to the predictions of a previous semi-analytical determination, and our results show the enhancement effect for neutrino detection from the presence of the near mountains.

arXiv comment13 pages, 4 figures. One new figure, clarifying remarks and references added. Version accepted for publication

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Cited by in corpus (18)

• Cosmic Rays from the Knee to the Highest Energies
• Upper limit on the diffuse flux of UHE tau neutrinos from the Pierre Auger Observatory
• Ultrahigh-Energy Photons as a Probe of Nearby Transient Ultrahigh-Energy Cosmic-Ray Sources and Possible Lorentz-Invariance Violation
• Acceptances for Space-Based and Ground-Based Fluorescence Detectors, and Inference of the Neutrino-Nucleon Cross-Section above 10^19 eV
• The sensitivity of the next generation of lunar Cherenkov observations to UHE neutrinos and cosmic rays
• Disentangling neutrino-nucleon cross section and high energy neutrino flux with a km^3 neutrino telescope
• Tau energy loss and ultrahigh energy skimming tau neutrinos
• Ultra High Energy Neutrinos in the Mediterranean: detecting nu_tau and nu_mu with a km^3 Telescope
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• Lightest Nuclei in UHECR versus Tau Neutrino Astronomy
• Neutrinos and Gamma Rays from Galaxy Clusters
• New Analyses of Double-Bang Events in the Atmosphere
• Capability of the HAWC gamma-ray observatory for the indirect detection of ultra-high energy neutrinos
• High Energy Neutrinos with a Mediterranean Neutrino Telescope
• Neutrino Detection with the Surface Array of the Pierre Auger Observatory
• Tau Neutrinos with Cherenkov Telescope Array
• Simulation of up- and down-going neutrino induced showers at the site of the Pierre Auger Observatory
• The Relevance of Mediterranean Neutrino Telescope Sites on Earth-skimming tau neutrino detection