A simple algorithm for polarized parton evolution
High Energy Physics - Phenomenology
2026-03-17 v2
Abstract
We present an algorithm to include the correlation between the production and decay planes of gluons in a parton-shower simulation. The technique is based on identifying the charge currents responsible for the creation and annihilation of the vector field. It is applicable in both the hard-collinear and the soft wide-angle region. As a function of the number of particles, the algorithm scales linear in computing time and memory. We demonstrate agreement with fixed-order perturbative calculations in the relevant kinematical limits, and present a new observable that can be used to probe correlations beyond current-current interactions.
Cite
@article{arxiv.2508.19018,
title = {A simple algorithm for polarized parton evolution},
author = {Stefan Höche and Mareen Hoppe and Daniel Reichelt},
journal= {arXiv preprint arXiv:2508.19018},
year = {2026}
}
Comments
15 pages, 8 figures