Soft Particle Emission Accompanying Dijet Photoproduction

TL;DR

This paper investigates how soft particle emission accompanying dijet photoproduction varies with the nature of the photon interaction, highlighting differences between resolved and direct processes and exploring their representation in Monte Carlo models.

Contribution

It provides an analysis of soft bremsstrahlung dependence on parton color charges and compares these effects in different photoproduction processes and Monte Carlo simulations.

Findings

Soft bremsstrahlung intensity is larger in resolved photon dijet production by a factor of 9/4.

Differences in soft emission are linked to the color charges of the hard-scattered partons.

Monte Carlo models reflect these effects to varying degrees.

Abstract

The intensity of the soft bremsstrahlung depends on the colour charges of the hard- scattered partons. This intensity is larger in dijet production with resolved photons by the factor C_A/C_F=9/4 in comparison with direct photoproduction for particular configurations. It is investigated how these effects are reflected in Monte Carlo models.