Discovering the highest energy neutrinos with the Payload for Ultrahigh Energy Observations (PUEO)

A. G. Vieregg,Q. Abarr,P. Allison,J. Ammerman Yebra, J. Alvarez-Muniz,J. J. Beatty,D. Z. Besson,P. Chen,Y. Chen, X. Cheng, 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,S. -H. Wang,Y. -H. Wang,S. A. Wissel, R. Young, E. Zas,A. Zeolla

37TH INTERNATIONAL COSMIC RAY CONFERENCE, ICRC2021（2022）

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摘要

The Payload for Ultrahigh Energy Observations (PUEO) is a NASA Long-Duration Balloon Mission that has been selected for concept development. PUEO has unprecedented sensitivity to ultra-high energy neutrinos above 10(18) eV. PUEO will be sensitive to both Askaryan emission from neutrino-induced cascades in Antarctic ice and geomagnetic emission from upward-going air showers that are a result of tau neutrino interactions. PUEO is also especially well-suited for point source and transient searches. Compared to its predecessor ANITA, PUEO achieves better than an order-of-magnitude improvement in sensitivity and lowers the energy threshold for detection, by implementing a coherent phased array trigger, adding more channels, optimizing the detection bandwidth, and implementing real-time filtering. Here we discuss the science reach and plans for PUEO, leading up to a 2024 launch.

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