A Sterile Neutrino Origin for the Upward Directed Cosmic Ray Showers Detected by ANITA

23 Aug 2018 Cherry John F. Shoemaker Ian

The ANITA balloon experiment has recently observed several ~EeV cascade events at an angle below the horizon that renders any Standard Model (SM) interpretation unlikely as the Earth is significantly opaque to all SM particles at such energies. In this paper, we study a sterile neutrino interpretation of these events, calculating the angular acceptance of cascades and the relative sensitivities of several experiments to a cascade initiated by an EeV sterile neutrino... (read more)

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  • HIGH ENERGY PHYSICS - PHENOMENOLOGY
  • HIGH ENERGY ASTROPHYSICAL PHENOMENA