Measurement of the high-energy all-flavor neutrino-nucleon cross section with IceCube

TL;DR

This paper reports a measurement of the neutrino-nucleon cross section at energies between 60 TeV and 10 PeV using 7.5 years of IceCube data, enhancing understanding of neutrino interactions at high energies.

Contribution

It provides the first measurement of the all-flavor neutrino-nucleon cross section in the 60 TeV to 10 PeV range using IceCube's high-energy starting events.

Findings

Measured cross section consistent with Standard Model predictions.

Extended the energy range of neutrino interaction measurements.

Improved constraints on high-energy neutrino interaction models.

Abstract

The flux of high-energy neutrinos passing through the Earth is attenuated due to their interactions with matter. Their transmission probability is modulated by the neutrino interaction cross section and affects the arrival flux at the IceCube Neutrino Observatory, a cubic-kilometer neutrino detector embedded in the South Pole ice sheet. We present a measurement of the neutrino-nucleon cross section between 60 TeV--10 PeV using the high-energy starting events (HESE) sample from IceCube with 7.5 years of data.