Neutrinos at extreme energies

TL;DR

This paper reviews the production mechanisms and detection prospects of ultra-high-energy neutrinos, focusing on cosmic ray propagation and super heavy dark matter decay, highlighting theoretical flux predictions and experimental capabilities.

Contribution

It provides a comprehensive overview of the sources and detection strategies for PeV and above neutrinos, emphasizing recent theoretical and experimental developments.

Findings

Neutrinos at PeV energies can originate from cosmic ray propagation.

Decay of super heavy dark matter is a potential neutrino source.

Current and future experiments have varying detection capabilities.

Abstract

We will review the production of neutrinos with PeV energies and above. Discussing two possible sources of this radiation: the propagation of ultra high energy cosmic rays and the decay of super heavy dark matter. The discussion will focus on the theoretical expectations on neutrino fluxes and on the detection capabilities of present and future experiments.