Monte Carlo generator ELRADGEN 2.0 for simulation of radiative events in elastic ep-scattering of polarized particles

TL;DR

ELRADGEN 2.0 is a Monte Carlo generator designed to simulate radiative events in polarized elastic ep-scattering, featuring improved algorithms for faster and accurate simulation of radiative corrections validated against experimental data.

Contribution

The paper introduces ELRADGEN 2.0 with enhanced algorithms and detailed analytical expressions for simulating radiative events in polarized ep-scattering.

Findings

High-quality generation of photonic variables

Accurate radiative correction cross sections

Good agreement with experimental data

Abstract

The structure and algorithms of the Monte-Carlo generator ELRADGEN 2.0 designed to simulate radiative events in polarized ep-scattering are presented. The full set of analytical expressions for the QED radiative corrections is presented and discussed in detail. Algorithmic improvements implemented to provide faster simulation of hard real photon events are described. Numerical tests show high quality of generation of photonic variables and radiatively corrected cross section. The comparison of the elastic radiative tail simulated within the kinematical conditions of the BLAST experiment at MIT BATES shows a good agreement with experimental data.