Calculating the angle between jet axes

Abstract

We study the angle between i) the standard jet axis, ii) the axis of a jet which has been groomed using soft drop, with reduced sensitivity to soft radiation, iii) the jet axis obtained with the winner-take-all recombination scheme, which is insensitive to soft radiation at leading power. We calculate the distributions for these angles at next-to-leading logarithmic accuracy, including non-global logarithms. The angle between the standard and groomed jet axis directly probes soft wide-angle radiation, leading to a novel factorization formula. This angle is also very sensitive to nonperturbative physics, which is directly connected to nonperturbative contribution to the rapidity anomalous dimension for transverse momentum distributions. Comparing our predictions to Pythia we find good agreement, and we foresee applications to jet substructure in proton-proton and heavy ion collisions.

39 pages, 13 figures

References in corpus (14)

• An Introduction to PYTHIA 8.2
• Drell-Yan production at small q_T, transverse parton distributions and the collinear anomaly
• Top Jets in the Peak Region: Factorization Analysis with NLL Resummation
• Factorization of e+e- Event Shape Distributions with Hadronic Final States in Soft Collinear Effective Theory
• Extraction of unpolarized quark transverse momentum dependent parton distributions from Drell-Yan/Z-boson production
• Non-global Logarithms at 3 Loops, 4 Loops, 5 Loops and Beyond
• Dynamical grooming of QCD jets
• The Analytic Structure of Non-Global Logarithms: Convergence of the Dressed Gluon Expansion
• NLL${}^{\prime }$ resummation of jet mass
• Factorization for the light-jet mass and hemisphere soft function
• The Jet Shape at NLL${}^{\prime }$
• Theory Predictions for the Pull Angle
• Safe Use of Jet Pull
• Calculating Pull for Non-Singlet Jets

Cited by in corpus (16)

• 50 Years of Quantum Chromodynamics
• Precision Studies of QCD in the Low Energy Domain of the EIC
• Jet-based measurements of Sivers and Collins asymmetries at the future Electron-Ion Collider
• Jet Angularities in Z+jet production at the LHC
• Jets as precision probes in electron-nucleus collisions at the Electron-Ion Collider
• Towards Machine Learning Analytics for Jet Substructure
• Two- and Three-Loop Data for Groomed Jet Mass
• Lund multiplicity in QCD jets
• Jet energy drop
• Measurement of the angle between jet axes in pp collisions at $\sqrt{s}=5.02$ TeV
• Phenomenological study of the angle between jet axes in heavy-ion collisions
• The Catchment Area of Groomed Jets at NNLL
• Search for medium effects using jet axis decorrelation in inclusive jets from PbPb collisions at $\sqrt{s_{\text{NN}}}$ = 5.02 TeV
• D${}^0$-meson-tagged jet axes difference in proton-proton collisions at $\sqrt{\text{s}}=5.02$ TeV
• Impact of soft QCD effects over intrajet azimuthal anisotropies
• Constraining color-charge effects of partonic energy loss with jet axis-based inclusive jet substructure measurement