Improving the Simulation of Quark and Gluon Jets with Herwig 7

Abstract

The properties of quark and gluon jets, and the differences between them, are increasingly important at the LHC. However, Monte Carlo event generators are normally tuned to data from $e^{+}{e}^{-}$ collisions which are primarily sensitive to quark-initiated jets. In order to improve the description of gluon jets we make improvements to the perturbative and the non-perturbative modelling of gluon jets and include data with gluon-initiated jets in the tuning for the first time. The resultant tunes significantly improve the description of gluon jets and are now the default in Herwig 7.1.

References in corpus (9)

• An Introduction to PYTHIA 8.2
• Event generation with SHERPA 1.1
• Herwig++ Physics and Manual
• Colour reconnections in Herwig++
• Gaining (Mutual) Information about Quark/Gluon Discrimination
• Light-quark and gluon jet discrimination in pp collisions at $\sqrt{s}$ = 7 TeV with the ATLAS detector
• A study of the b-quark fragmentation function with the DELPHI detector at LEP I and an averaged distribution obtained at the Z Pole
• A model of non-perturbative gluon emission in an initial state parton shower
• A case study of quark-gluon discrimination at NNLL' in comparison to parton showers

Cited by in corpus (12)

• Event Generators for High-Energy Physics Experiments
• Phenomenology of jet angularities at the LHC
• Study of quark and gluon jet substructure in Z+jet and dijet events from pp collisions
• Development and validation of HERWIG 7 tunes from CMS underlying-event measurements
• Towards a Deep Learning Model for Hadronization
• Jet energy spectrum and substructure in $e^{+}{e}^{-}$ collisions at 91.2 GeV with ALEPH Archived Data
• Neural Conditional Reweighting
• Measurements of observables sensitive to colour reconnection in $t\bar{t}$ events with the ATLAS detector at $\sqrt{s}=13$ TeV
• TopicFlow: Disentangling quark and gluon jets with normalizing flows
• Studying QCD modeling of uncertainties in particle spectra from dark-matter annihilation into jets
• Generalized angular-order parton showers in Herwig 7
• Cluster Hadronisation in Sherpa