Searching for Askaryan Emission from Neutrinos with the Payload for Ultrahigh Energy Observations (PUEO)

The Payload for Ultrahigh Energy Observations (PUEO) is a long-duration balloon payload under construction scheduled to fly over Antarctica in late 2025. PUEO will deploy a broadband interferometric radio telescope pointing down at the ice sheet with a primary science goal of detecting the impulsive Askaryan radio emission expected to accompany interactions of ultrahigh-energy (UHE) neutrinos (> 1 EeV) in the glacial ice. PUEO’s design represents an order-of-magnitude improvement to neutrino sensitivity compared to the predecessor ANITA program. This contribution will give an overview of PUEO’s science case and detection concept, as well as present the expected diffuse and transient sensitivity of PUEO to UHE neutrinos.