Pure Quark and Gluon Observables in Collinear Drop

Abstract

We construct a class of pure quark and gluon observables by using the collinear drop grooming technique. The construction is based on linear combinations of multiple cumulative distributions of the jet mass in collinear drop, whose specific weights are fully predicted perturbatively. This yields observables which obtain their values purely from quarks (or purely from gluons) in a wide region of phase space. We demonstrate this by showing that these observables are effective in two phase space regions, one dominated by perturbative resummation and one dominated by nonperturbative effects. The nonperturbative effects are included using shape functions which only appear as a common factor in the linear combinations constructed. We test this construction using a numerical analysis with next-to-leading logarithmic resummation and various shape function models, as well as analyzing these observables with Pythia and Vincia. Choices for the collinear drop parameters are optimized for experimental use.

arXiv comment58 pages, 10 figures; v2: published version

References in corpus (68)

• An Introduction to PYTHIA 8.2
• FastJet user manual
• An effective field theory for collinear and soft gluons: heavy to light decays
• Soft-Collinear Factorization in Effective Field Theory
• Jet substructure as a new Higgs search channel at the LHC
• Summing Sudakov logarithms in B -> X_s + gamma in effective field theory
• Invariant Operators in Collinear Effective Theory
• Soft Drop
• Hard Scattering Factorization from Effective Field Theory
• Towards an understanding of jet substructure
• Resummation of non-global QCD observables
• N-Jettiness: An Inclusive Event Shape to Veto Jets
• Energy Correlation Functions for Jet Substructure
• Boosted objects: a probe of beyond the Standard Model physics
• Jet Substructure at the Large Hadron Collider: A Review of Recent Advances in Theory and Machine Learning
• Jet quenching in high-energy heavy-ion collisions
• Techniques for improved heavy particle searches with jet substructure
• Jet Substructure at the Large Hadron Collider: Experimental Review
• Deep learning in color: towards automated quark/gluon jet discrimination
• A precise determination of alpha_s from LEP thrust data using effective field theory
• Jet Shapes and Jet Algorithms in SCET
• Treating the b quark distribution function with reliable uncertainties
• Top Jets in the Peak Region: Factorization Analysis with NLL Resummation
• Gaining (Mutual) Information about Quark/Gluon Discrimination
• Quark and Gluon Tagging at the LHC
• Jet p_T Resummation in Higgs Production at NNLL'+NNLO
• New Angles on Energy Correlation Functions
• Systematics of quark/gluon tagging
• Quark and Gluon Jet Substructure
• The semi-inclusive jet function in SCET and small radius resummation for inclusive jet production
• Factorization for groomed jet substructure beyond the next-to-leading logarithm
• Subleading Power Corrections for N-Jettiness Subtractions
• An Effective Field Theory for Jet Processes
• Logarithmic accuracy of parton showers: a fixed-order study
• Probing the hardest branching of jets in heavy ion collisions
• Factorization and Resummation for Dijet Invariant Mass Spectra
• The Beam Thrust Cross Section for Drell-Yan at NNLL Order
• On the Topic of Jets: Disentangling Quarks and Gluons at Colliders
• Casimir Meets Poisson: Improved Quark/Gluon Discrimination with Counting Observables
• Groomed jets in heavy-ion collisions: sensitivity to medium-induced bremsstrahlung
• Vincia for Hadron Colliders
• First Subleading Power Resummation for Event Shapes
• Jet substructure using semi-inclusive jet functions within SCET
• N-Jettiness Subtractions for $gg\to H$ at Subleading Power
• Power Corrections for N-Jettiness Subtractions at $\mathcal{O}({\alpha }_s)$
• Modification of Jet Substructure in Heavy Ion Collisions as a Probe of the Resolution Length of Quark-Gluon Plasma
• Soft drop groomed jet angularities at the LHC
• A Soft-Collinear Mode for Jet Cross Sections in Soft Collinear Effective Theory
• An operational definition of quark and gluon jets
• Quark-Gluon tagging with Shower Deconstruction: Unearthing dark matter and Higgs couplings
• Dissecting Soft Radiation with Factorization
• The groomed and ungroomed jet mass distribution for inclusive jet production at the LHC
• A Theory of Quark vs. Gluon Discrimination
• Resummation of Boson-Jet Correlation at Hadron Colliders
• Nonperturbative Corrections to Soft Drop Jet Mass
• Jet fragmentation functions in proton-proton collisions using soft-collinear effective theory
• Convolved Substructure: Analytically Decorrelating Jet Substructure Observables
• Factorization for Jet Radius Logarithms in Jet Mass Spectra at the LHC
• Disentangling Jet Modification in Jet Simulations and in Z+Jet Data
• The soft drop groomed jet radius at NLL
• Quark-gluon discrimination in the search for gluino pair production at the LHC
• Transverse Momentum Broadening of a Jet in Quark-Gluon Plasma: An Open Quantum System EFT
• Effective Field Theory for jet substructure in heavy ion collisions
• Data-driven quark and gluon jet modification in heavy-ion collisions
• Collinear Drop
• Fractal based observables to probe jet substructure of quarks and gluons
• EFT for Soft Drop Double Differential Cross Section
• Subtracted Cumulants: Mitigating Large Background in Jet Substructure

Cited by in corpus (8)

• 50 Years of Quantum Chromodynamics
• Disentangling Quarks and Gluons with CMS Open Data
• Machine learning-based jet and event classification at the Electron-Ion Collider with applications to hadron structure and spin physics
• Dynamic Radius Jet Clustering Algorithm
• Going off topics to demix quark and gluon jets in ${\alpha }_S$ extractions
• TopicFlow: Disentangling quark and gluon jets with normalizing flows
• The Catchment Area of Groomed Jets at NNLL
• Quark-versus-gluon tagging in CMS Open Data with CWoLa and TopicFlow