On the charged current neutrino-nucleon total cross section at high energies

TL;DR

This paper calculates the total cross section for charged current neutrino-nucleon interactions at extremely high energies using perturbative QCD, comparing different factorization schemes and highlighting issues in some calculations.

Contribution

It provides the first detailed comparison of LO and NLO QCD calculations of neutrino-nucleon cross sections at energies up to 10^{12} GeV using multiple factorization schemes.

Findings

NLO corrections significantly affect cross section estimates.

Inconsistencies in some QCD calculations are demonstrated.

Results inform high-energy neutrino astrophysics models.

Abstract

We evaluate the charged current neutrino-nucleon total cross section up to neutrino energies of 10^{12} GeV in the LO and NLO of perturbative QCD within the framework of two different factorization schemes. The numerical implications of some inconsistent QCD calculations are illustrated.