These proceedings address a recent publication by the ANITA collaboration of four upward-pointing cosmic-ray-like events observed in the first flight of ANITA. Three of these events were consistent with stratospheric cosmic-ray air showers where the axis of propagation does not intersect the surface of the Earth. The fourth event was consistent with a primary particle that emerges from the surface of the ice suggesting a possible τ-lepton decay as the origin of this event. These proceedings follow-up on the modeling and testing of the hypothesis that this event was of τ neutrino origin.
|Journal||Proceedings of Science|
|State||Published - 2017|
|Event||35th International Cosmic Ray Conference, ICRC 2017 - Bexco, Busan, Korea, Republic of|
Duration: 10 Jul 2017 → 20 Jul 2017