Angular Scaling in Jets

Abstract

We introduce a jet shape observable defined for an ensemble of jets in terms of two-particle angular correlations and a resolution parameter R. This quantity is infrared and collinear safe and can be interpreted as a scaling exponent for the angular distribution of mass inside the jet. For small R it is close to the value 2 as a consequence of the approximately scale invariant QCD dynamics. For large R it is sensitive to non-perturbative effects. We describe the use of this correlation function for tests of QCD, for studying underlying event and pile-up effects, and for tuning Monte Carlo event generators.

Updated to JHEP version

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Cited by in corpus (15)

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• New Angles on Energy Correlation Functions
• Jet-Images: Computer Vision Inspired Techniques for Jet Tagging
• Pileup subtraction for jet shapes
• Toward Multi-Differential Cross Sections: Measuring Two Angularities on a Single Jet
• Recursive Soft Drop
• Neural Network-based Top Tagger with Two-Point Energy Correlations and Geometry of Soft Emissions
• Jet Substructure by Accident
• Benchmarking an Even Better HEPTopTagger
• QCD and Jets at Hadron Colliders
• Spectral Analysis of Jet Substructure with Neural Networks: Boosted Higgs Case
• Boosted Multijet Resonances and New Color-Flow Variables
• Fractal based observables to probe jet substructure of quarks and gluons
• QCD Analysis of the Scale-Invariance of Jets
• Tagging single Tops