Spacetime Colour Reconnection in Herwig 7

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.

14 pages, 12 figures, updated to final accepted version (EPJ C)

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• Towards a Deep Learning Model for Hadronization
• QCD Challenges from pp to A-A Collisions
• Implementation of Angularly Ordered Electroweak Parton Shower in Herwig 7
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• String Fragmentation with a Time-Dependent Tension
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• The role of multi-parton interactions in doubly-heavy hadron production
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• Signature of the Maximally Symmetric 2HDM via $W^{\pm }/Z$-Quadruplet Productions at the LHC
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• Cluster Hadronisation in Sherpa
• Monte Carlo Event Generators for Future Lepton Colliders
• Herwig++ 2.7 Release Note