The QCD analysis of the combined set for the F_3 structure function data based on the analytic approach

TL;DR

This paper applies analytic perturbation theory to analyze the xF_3 structure function in deep inelastic scattering, extracting QCD parameters and comparing standard and analytic approaches, especially at large x.

Contribution

It introduces an analytic approach to QCD analysis of the xF_3 structure function, providing a comparison with standard perturbative methods using combined experimental data.

Findings

Analytic approach yields different results at large x.

Extracted values of Lambda_QCD and higher twist parameters.

Comparison shows notable differences between approaches.

Abstract

We apply analytic perturbation theory to the QCD analysis of the xF_3(x,Q^2) structure function considering a combined set of deep inelastic scattering data presented by several collaborations, and extract values of the scale parameter Lambda_{QCD}, the parameters of the form of the xF_3 structure function, and the x-shape of the higher twist contribution. We study the difference between the results obtained within the standard perturbative and analytic approaches in comparison with the experimental errors and state that the greatest difference occurs for large x.