Small-x Physics and the Detection of UHE Neutrinos

TL;DR

This paper investigates the behavior of tau leptons and neutrino interactions at ultra-high energies to improve detection methods for ultra-high-energy neutrinos using Earth-skimming tau neutrinos.

Contribution

It provides new evaluations of tau lepton energy loss and neutrino cross sections at ultra-high energies, crucial for neutrino detection strategies.

Findings

Quantified tau lepton energy loss due to photonuclear interactions.

Calculated neutrino charged current cross sections at ultra-high energies.

Implications for neutrino detection bounds with Earth-skimming tau neutrinos.

Abstract

We evaluate both the tau lepton energy loss produced by photonuclear interactions and the neutrino charged current cross section at ultra-high energies, both relevant to neutrino bounds with Earth-skimming tau neutrinos.