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The Payload for Ultrahigh Energy Observations (PUEO): A White Paper

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arxiv 2010.02892 v3 pith:3F3ZOLPB submitted 2020-10-06 astro-ph.IM astro-ph.HEhep-exphysics.ins-det

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
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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 T. C. Liu Z. Martin C. Miki J. Nam R. J. Nichol K. Nishimura A. Novikov A. Nozdrina E. Oberla S. Prohira R. Prechelt B. F. Rauch J. M. Roberts A. Romero-Wolf J. W. Russell D. Seckel J. Shiao D. Smith D. Southall G. S. Varner A. G. Vieregg S.-H. Wang Y.-H. Wang S. A. Wissel C. Xie R. Young E. Zas A. Zeolla
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classification astro-ph.IM astro-ph.HEhep-exphysics.ins-det
keywords pueoenergyenergiesobservationspayloadsensitivityultrahighultrahigh-energy
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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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Cited by 2 Pith papers

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  1. Visible inelasticity as a probe of tau flavor content of astrophysical neutrinos

    hep-ph 2026-05 unverdicted novelty 7.0

    Visible inelasticity in starting tracks can statistically separate tau and muon neutrino events, yielding competitive sensitivity to the tau-to-muon flux ratio with current IceCube exposures.

  2. The Sensitivity of PUEO to Cosmogenic Neutrinos and Exotic Physics Scenarios

    astro-ph.HE 2025-12 unverdicted novelty 5.0

    PUEO will constrain the proton fraction of ultrahigh-energy cosmic rays under strong source evolution and set leading neutrino constraints on ultraheavy dark matter decays and some cosmic string models above 10^19 eV.