Spacetime Colour Reconnection in Herwig 7

TL;DR

This paper introduces a new spacetime color reconnection model for Herwig 7, which minimizes a boost-invariant distance measure and shows promising agreement with collider data, potentially extending to larger systems.

Contribution

A novel spacetime color reconnection model for Herwig 7 that incorporates a boost-invariant distance measure and demonstrates compatibility with experimental data.

Findings

Reasonable agreement with soft physics observables

Model suggests applicability to larger systems

Enhances understanding of color reconnection in collider events

Abstract

We present a model for generating spacetime coordinates in the Monte Carlo event generator Herwig 7, and perform colour reconnection by minimizing a boost-invariant distance measure of the system. We compare the model to a series of soft physics observables. We find reasonable agreement with the data, suggesting that $pp$-collider colour reconnection may be able to be applied in larger systems.