ESFRAD. FORTRAN code for calculation of QED corrections to polarized ep-scattering by the electron structure function method

TL;DR

This paper introduces the ESFRAD FORTRAN code that calculates higher order QED radiative corrections in polarized ep-scattering using the electron structure function method, providing a new computational tool for precise theoretical predictions.

Contribution

The paper presents a novel FORTRAN code, ESFRAD, implementing the electron structure function method for QED corrections in polarized deep-inelastic ep-scattering, with detailed comparison to existing codes.

Findings

ESFRAD accurately computes higher order QED corrections.

Comparison shows good agreement with POLRAD and RADGEN.

The code enhances precision in polarized ep-scattering analyses.

Abstract

The main features of the electron structure function method for calculations of the higher order QED radiative effects to polarized deep-inelastic ep-scattering are presented. A new FORTRAN code ESFRAD based on this method was developed. A detailed quantitative comparison between the results of ESFRAD and other methods implemented in the codes POLRAD and RADGEN for calculation of the higher order radiative corrections is performed.