New formalism for QCD parton showers

Abstract

We present a new formalism for parton shower simulation of QCD jets, which incorporates the following features: invariance under boosts along jet axes, improved treatment of heavy quark fragmentation, angular-ordered evolution with soft gluon coherence, more accurate soft gluon angular distributions, and better coverage of phase space. It is implemented in the new HERWIG++ event generator.

31 pages, 12 figures. Replacement has typos corrected, citations added

References in corpus (19)

• Herwig++ Physics and Manual
• HERWIG 6.5: an event generator for Hadron Emission Reactions With Interfering Gluons (including supersymmetric processes)
• High-Energy-Physics Event Generation with PYTHIA 6.1
• Matching NLO QCD computations and parton shower simulations
• QCD Matrix Elements + Parton Showers
• The Dipole Formalism for Next-to-Leading Order QCD Calculations with Massive Partons
• Matching NLO QCD and parton showers in heavy flavour production
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• QCD Radiation off Heavy Particles
• Soft-Gluon Resummation for the Fragmentation of Light and Heavy Quarks at Large x
• W Production in an Improved Parton-Shower Approach
• Spin Correlations in Monte Carlo Simulations
• Initial State Radiation in Simulations of Vector Boson Production at Hadron Colliders
• Matrix Element Corrections to Parton Shower Simulations of Heavy Quark Decay
• A Simple Prescription for First Order Corrections to Quark Scattering and Annihilation Processes
• Non-Perturbative Corrections to Heavy Quark Fragmentation in e^+e^- Annihilation

Cited by in corpus (137)

• A New Method for Combining NLO QCD with Shower Monte Carlo Algorithms
• Herwig++ Physics and Manual
• Herwig 7.0 / Herwig++ 3.0 Release Note
• A parton shower algorithm based on Catani-Seymour dipole factorisation
• QCD matrix elements + parton showers: The NLO case
• General-purpose event generators for LHC physics
• SHERPA 1.alpha, a proof-of-concept version
• Jet Substructure at the Large Hadron Collider: A Review of Recent Advances in Theory and Machine Learning
• Strategies to Identify Boosted Tops
• A perturbative framework for jet quenching
• Coherent Parton Showers with Local Recoils
• The midpoint between dipole and parton showers
• Dipole Showers and Automated NLO Matching in Herwig++
• Simulation of multiple partonic interactions in Herwig++
• Parton Shower Uncertainties in Jet Substructure Analyses with Deep Neural Networks
• Logarithmic accuracy of parton showers: a fixed-order study
• Collinear and TMD parton densities from fits to precision DIS measurements in the parton branching method
• Measurement of the inclusive jet cross section in pp collisions at sqrt(s)=2.76 TeV and comparison to the inclusive jet cross section at sqrt(s)=7 TeV using the ATLAS detector
• Determination of the strong coupling constant using matched NNLO+NLLA predictions for hadronic event shapes in e+e- annihilations
• Measurement of the inclusive 3-jet production differential cross section in proton-proton collisions at 7 TeV and determination of the strong coupling constant in the TeV range
• Implementing NLO DGLAP evolution in Parton Showers
• Vincia for Hadron Colliders
• Combination of electroweak and QCD corrections to single W production at the Fermilab Tevatron and the CERN LHC
• Measurement of the ratio of inclusive jet cross sections using the anti-kt algorithm with radius parameters R = 0.5 and 0.7 in pp collisions at sqrt(s) = 7 TeV
• Parton showers from the dipole formalism
• NLO QCD corrections in Herwig++ with MC@NLO
• Event Generators for High-Energy Physics Experiments
• What is the Top Quark Mass?
• Some Dipole Shower Studies
• Antenna Showers with One-Loop Matrix Elements
• Initial-state showering based on colour dipoles connected to incoming parton lines
• Measurement of the inclusive jet cross-section in proton-proton collisions at $\sqrt{s}=7$ TeV using 4.5 fb${}^{-1}$ of data with the ATLAS detector
• QCD Coherence and the Top Quark Asymmetry
• Parton branching at amplitude level
• Measurement of jet substructure observables in $\mathrm{t}\overline{\mathrm{t}}$ events from proton-proton collisions at $\sqrt{s}=$ 13TeV
• A Positive-Weight Next-to-Leading-Order Monte Carlo for e+e- Annihilation to Hadrons
• Measurement of jet charge in dijet events from sqrt(s)=8 TeV pp collisions with the ATLAS detector
• Reweighting Parton Showers
• Measurement of the inclusive jet cross-sections in proton--proton collisions at $\sqrt{s}=$8 TeV with the ATLAS detector
• Deep Learning as a Parton Shower
• Jet vetoing at the LHC
• Herwig++ 1.0: An Event Generator for e+e- Annihilation
• Event Generation from Effective Field Theory
• Parton Shower Uncertainties with Herwig 7: Benchmarks at Leading Order
• A Positive-Weight Next-to-Leading Order Monte Carlo Simulation for Higgs Boson Production
• On the transverse momentum in Z-boson production in a virtuality ordered parton shower
• Improving the Simulation of Quark and Gluon Jets with Herwig 7
• On the Cutoff Dependence of the Quark Mass Parameter in Angular Ordered Parton Showers
• PanScales parton showers for hadron collisions: formulation and fixed-order studies
• Nonperturbative Corrections to Soft Drop Jet Mass
• Simulation of QED Radiation in Particle decays using the YFS Formalism
• A positive-weight next-to-leading order simulation of weak boson pair production
• Measurements of jet charge with dijet events in pp collisions at sqrt(s) = 8 TeV
• Jet cross sections at the LHC and the quest for higher precision
• Introduction to QCD
• Estimating QCD uncertainties in Monte Carlo event generators for gamma-ray dark matter searches
• Coherent Showers in Decays of Colored Resonances
• A model of non-perturbative gluon emission in an initial state parton shower
• Uncertainties of Sudakov form factors
• Parton Shower and Matching Uncertainties in Top Quark Pair Production with Herwig 7
• Study of quark and gluon jet substructure in Z+jet and dijet events from pp collisions
• Neural Network-based Top Tagger with Two-Point Energy Correlations and Geometry of Soft Emissions
• Improvements on dipole shower colour
• Next-to-leading-logarithmic PanScales showers for Deep Inelastic Scattering and Vector Boson Fusion
• Monte Carlo and large angle gluon radiation
• A new approach to QCD final-state evolution in processes with massive partons
• Threshold Resummation in B --> X_c l nu_l Decays
• Bottom-quark fragmentation: comparing results from tuned event generators and resummed calculations
• Parton-shower effects in Higgs production via Vector-Boson Fusion
• Collider Events on a Quantum Computer
• Investigation of Monte Carlo Uncertainties on Higgs Boson searches using Jet Substructure
• Search for squarks and gluinos in final states with hadronically decaying $\tau$-leptons, jets, and missing transverse momentum using $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector
• Herwig++ Monte Carlo At Next-To-Leading Order for e+e- annihilation and lepton pair production
• Spacetime Colour Reconnection in Herwig 7
• Parton Shower Matching Systematics in Vector-Boson-Fusion WW Production
• High dimensional parameter tuning for event generators
• Probing color coherence effects in pp collisions at sqrt(s) = 7 TeV
• Z boson production in proton-lead collisions at the LHC accounting for transverse momenta of initial partons
• Measurement of dijet azimuthal decorrelation in pp collisions at sqrt(s) = 8 TeV
• A Phenomenological Study of Bottom Quark Fragmentation in Top Quark Decay
• A Monte-Carlo Simulation of Double Parton Scattering
• Addendum to: A Theoretical Study of Top-Mass Measurements at the LHC Using NLO+PS Generators of Increasing Accuracy
• Impact of QCD uncertainties on antiproton spectra from dark-matter annihilation
• Search for squarks and gluinos in events with hadronically decaying tau leptons, jets and missing transverse momentum in proton-proton collisions at $\sqrt{s}=13$ TeV recorded with the ATLAS detector
• Dynamical grooming meets LHC data
• Applying the POWHEG method to top pair production and decays at the ILC
• A Simulation of QCD Radiation in Top Quark Decays
• MC@NLO for the hadronic decay of Higgs bosons in associated production with vector bosons
• Taming modeling uncertainties with Mass Unspecific Supervised Tagging
• Jet vetoing and Herwig++
• A new method to distinguish hadronically decaying boosted $Z$ bosons from $W$ bosons using the ATLAS detector
• Multi-jet Merging with TMD Parton Branching
• New techniques for jet calibration with the ATLAS detector
• Rings and strings: a basis for understanding subleading colour and QCD coherence beyond the two-jet limit
• Gaining analytic control of parton showers
• Flavoured jet algorithms: a comparative study
• Distributions of topological observables in inclusive three- and four-jet events in pp collisions at sqrt(s) = 7 TeV
• NLO Multijet Merging for Higgs Production Beyond the VBF Approximation
• Measurement of the primary Lund jet plane density in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Status and developments of event generators
• Investigating the Quantum Properties of Jets and the Search for a Supersymmetric Top Quark Partner with the ATLAS Detector
• A formalism for the resummation of non-factorizable observables in SCET
• Monte Carlo Simulation of Hard Radiation in Decays in Beyond the Standard Model Physics in Herwig++
• Constraining the Higgs valence contribution in the proton
• Same-sign W pair production in composite Higgs models
• Measurement of groomed event shape observables in deep-inelastic electron-proton scattering at HERA
• Hadronization of correlated gluon fields
• Jet fragmentation transverse momentum distributions in pp and p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Measurement of observables sensitive to coherence effects in hadronic Z decays with the OPAL detector at LEP
• Introduction to parton-shower event generators
• Event generator for the LHC
• Studies of Quantum Chromodynamics at the LHC
• A comparative study of Higgs boson production from vector-boson fusion
• Cutoff dependence of the thrust peak position in the dipole shower
• Evolution variable dependence of jet substructure
• A Positive-Weight Next-to-Leading-Order Monte Carlo Simulation of Deep Inelastic Scattering and Higgs Boson Production via Vector Boson Fusion in Herwig++
• Heavy Flavour Jet Substructure
• The new Monte Carlo Event Generator Herwig++
• Computer Simulations of High Energy Physics
• Study of charged-particle multiplicity fluctuations in pp collisions with Monte Carlo event generators at the LHC
• The Georgi Algorithms of Jet Clustering
• Dark Sector Showers and Hadronisation in Herwig 7
• On the QCD Evolution of Transverse Momentum Dependent Distributions
• Generalized angular-order parton showers in Herwig 7
• Heavy Flavor Jet Substructure at Lepton Colliders
• Higgs production via vector-boson fusion at the LHC
• Apacic++ 2.0, A Parton Cascade In C++
• Herwig++ Status Report
• APACIC++, A Parton Cascade in C++
• Search for medium effects using jet axis decorrelation in inclusive jets from PbPb collisions at $\sqrt{s_{\text{NN}}}$ = 5.02 TeV
• A method for correcting the substructure of multiprong jets using the Lund jet plane
• Monte Carlo Event Generators
• Particle spectra from dark matter annihilation: physics modeling and QCD uncertainties
• Multi-Jet Production in Deep Inelastic Scattering with Pythia
• Jet substructure of light and heavy flavor jets at RHIC
• Jet properties and correlations in multi-jet topologies in CMS
• Automated NLO/NLL Monte Carlo programs for the LHC