The Payload for Ultrahigh Energy Observations (PUEO): A White Paper
Q. Abarr, P. Allison, J. Ammerman Yebra, J. Alvarez-Mu\~niz, J. J., Beatty, D. Z. Besson, P. Chen, Y. Chen, J. M. Clem, A. Connolly, L., Cremonesi, C. Deaconu, J. Flaherty, D. Frikken, P. W. Gorham, C. Hast, C., Hornhuber, J.J. Huang, K. Hughes, A. Hynous, Y. Ku, C.-Y. Kuo
TL;DR
PUEO is a balloon experiment designed to detect ultrahigh-energy neutrinos above 1 EeV, aiming to advance understanding of the extreme-energy universe with improved sensitivity over previous missions.
Contribution
It introduces an improved balloon-based detector that surpasses previous designs, significantly enhancing sensitivity to ultrahigh-energy neutrinos.
Findings
Expected to detect or set new limits on ultrahigh-energy neutrino fluxes.
Drastically improves sensitivity by over an order of magnitude below 30 EeV.
Builds on and surpasses the ANITA program.
Abstract
The Payload for Ultrahigh Energy Observations (PUEO) long-duration balloon experiment is designed to have world-leading sensitivity to ultrahigh-energy neutrinos at energies above 1 EeV. Probing this energy region is essential for understanding the extreme-energy universe at all distance scales. PUEO leverages experience from and supersedes the successful Antarctic Impulsive Transient Antenna (ANITA) program, with an improved design that drastically improves sensitivity by more than an order of magnitude at energies below 30 EeV. PUEO will either make the first significant detection of or set the best limits on ultrahigh-energy neutrino fluxes.
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