6533b873fe1ef96bd12d57cd

RESEARCH PRODUCT

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

Gennaro MieleSergio PastorOfelia Pisanti

subject

PhysicsPierre Auger ObservatoryNuclear and High Energy PhysicsApertureAstrophysics::High Energy Astrophysical PhenomenaAntenna apertureAstrophysics (astro-ph)Astrophysics::Instrumentation and Methods for AstrophysicsFOS: Physical sciencesCosmic rayAstrophysicsPartícules (Física nuclear)AugerNuclear physicsHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)Neutrino detectorNeutrinoLepton

description

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.

https://dx.doi.org/10.48550/arxiv.astro-ph/0508038