Colour Reconnection from Soft Gluon Evolution
Stefan Gieseke, Patrick Kirchgae{\ss}er, Simon Pl\"atzer, Andrzej, Siodmok

TL;DR
This paper investigates the structure of colour reconnection in soft gluon evolution using a perturbative approach, supporting geometric models and exploring baryonic reconnection within cluster hadronization.
Contribution
It introduces a perturbative framework for understanding colour reconnection, supporting geometric models and detailing baryonic reconnection mechanisms.
Findings
Supports geometric models of colour reconnection
Shows how baryonic systems form through reconnection
Provides a dynamic basis for new reconnection models
Abstract
We consider soft gluon evolution at the amplitude level to expose the structure of colour reconnection from a perturbative point of view. Considering the cluster hadronization model and an universal Ansatz for the soft anomalous dimension we find strong support for geometric models considered earlier. We also show how reconnection into baryonic systems arises, and how larger cluster systems evolve. Our results provide the dynamic basis for a new class of colour reconnection models for cluster hadronization.
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