A new Monte Carlo study of evolution equation with coherence
M. Slawinska, S. Jadach, K. Kutak
TL;DR
This paper presents a Monte Carlo numerical solution to the CCFM evolution equation, analyzing the effects of soft emissions, comparing with DGLAP, and studying infra-red behavior through diffusion plots.
Contribution
It introduces a new Monte Carlo approach to solve the CCFM equation and compares its solutions with DGLAP, highlighting the impact of soft emissions and non-Sudakov form factors.
Findings
Removing soft emissions affects transverse momentum distributions.
CCFM solutions differ from DGLAP in the gluonic channel.
Infra-red behavior analyzed via diffusion plots.
Abstract
We solve CCFM evolution equation numerically using the CohRad program based on Monte Carlo methods. We discuss the effects of removing soft emissions and non-Sudakov form factor by comparing the obtained distributions as functions of accumulated transverse momenta or fractions of proton's longitudinal momenta. We also compare the solution of the CCFM with the DGLAP equation in the gluonic channel. Finally, we analyze the infra-red behaviour of solutions using the so-called diffusion plots.
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