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Point sources of ultra-high-energy neutrinos: Minimalist predictions for near-future discovery

Damiano F. G. Fiorillo, Mauricio Bustamante, Victor B. Valera

SciPost Phys. Proc. 13, 009 (2023) · published 28 September 2023

Proceedings event

21st International Symposium on Very High Energy Cosmic Ray Interactions


The discovery of ultra-high-energy neutrinos, with energies above 100 PeV, may soon be within reach of upcoming neutrino telescopes. We present a robust framework to compute the statistical significance of point-source discovery via the detection of neutrino multiplets. We apply it to the radio array component of IceCube-Gen2. To identify a source with $3\sigma$ significance, IceCube-Gen2 will need to detect a triplet, at best, and an octuplet, at worst, depending on whether the source is steady-state or transient, and on its position in the sky. The discovery, or absence, of sources significantly constrains the properties of the source population.

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