Jet angularity measurements for single inclusive jet production

Abstract

We study jet angularity measurements for single-inclusive jet production at the LHC. Jet angularities depend on a continuous parameter $a$ allowing for a smooth interpolation between different traditional jet shape observables. We establish a factorization theorem within Soft Collinear Effective Theory (SCET) where we consistently take into account in- and out-of-jet radiation by making use of semi-inclusive jet functions. For comparison, we elaborate on the differences to jet angularities measured on an exclusive jet sample. All the necessary ingredients for the resummation at next-to-leading logarithmic (NLL) accuracy are presented within the effective field theory framework. We expect semi-inclusive jet angularity measurements to be feasible at the LHC and we present theoretical predictions for the relevant kinematic range. In addition, we investigate the potential impact of jet angularities for quark-gluon discrimination.

28 pages, 7 figures

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• The groomed and ungroomed jet mass distribution for inclusive jet production at the LHC
• Phenomenology of jet angularities at the LHC
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• Conformal Colliders Meet the LHC
• Measurements of the groomed and ungroomed jet angularities in pp collisions at $\sqrt{s}=5.02$ TeV
• Tagging the initial-state gluon
• Heavy Quark Jet Fragmentation
• Dynamic Jet Charge
• Invariant Jet Mass Measurements in $pp$ Collisions at $\sqrt{s}=200$ GeV at RHIC
• Identification of b-jets using QCD-inspired observables
• Angularity in DIS at next-to-next-to-leading log accuracy
• From Underlying Event Sensitive To Insensitive: Factorization and Resummation
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• Heavy flavor and jet studies for the future Electron-Ion Collider
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• Jet substructure in $p$+$p$ and $p$+Au collisions at $\sqrt{s_{\text{NN}}}=200$ GeV at STAR