Heavy-quark contributions to the DIS structure functions $F_4$ and $F_5$ at NLO in the ACOT scheme

TL;DR

This paper calculates heavy-quark contributions to deep-inelastic scattering structure functions F4 and F5 at NLO in the ACOT scheme, providing analytic and numerical results to support future experimental measurements.

Contribution

It presents the first detailed NLO calculations of heavy-quark effects on F4 and F5 in the ACOT scheme, including analytic expressions and numerical predictions.

Findings

Analytic expressions for heavy-quark contributions to F4 and F5.

Numerical results for neutral and charged current cases.

Foundation for future experimental measurements of these structure functions.

Abstract

We compute the contributions of heavy quarks to the deep-inelastic scattering structure functions $F_4$ and $F_5$ at next-to-leading order of perturbative QCD in the ACOT scheme. Both analytic results including the details of the calculation as well as numerical results for the neutral and charged current cases are presented. Our study thus lays the groundwork for future measurements of these two structure functions in experiments such as the SHiP experiment.