Discovering the Highest Energy Astrophysical Neutrinos

The detection of high energy astrophysical neutrinos is an important step toward understanding the most energetic cosmic accelerators.  IceCube, an observatory at the South Pole, has observed the first astrophysical neutrinos and identified potential sources.  However, the best sensitivity at the highest energies comes from detectors that look for coherent radio Cherenkov emission from neutrino interactions.  I will give an overview of the state of experimental efforts, including a new suite of new experiments that are currently being constructed to discover neutrinos at the highest energies.  These include the ground-based experiment RNO-G, which is under construction at Summit Station in Greenland, and the balloon-borne experiment PUEO, which is scheduled to launch in December 2025.

Speaker: Abigail Vieregg, Stanford University