Dynamical grooming meets LHC data

Abstract

In this work, we analyse the all-orders resummation structure of the momentum sharing fraction, $z_g$, opening angle, ${\theta }_g$, and relative transverse momentum, $k_{t,g}$, of the splitting tagged by the dynamical grooming procedure in hadronic collisions. We demonstrate that their resummation does non-exponentiate and it is free of clustering logarithms. Then, we analytically compute the probability distributions of ($z_g$, ${\theta }_g$, $k_{t,g}$) up to next-to next-to-double logarithm accuracy (N2DL) in the narrow jet limit, including a matching to leading order in ${\alpha }_s$. On the phenomenological side, we perform an analytic-to-parton level comparison with Pythia and Herwig. We find that differences between the analytic and the Monte-Carlo results are dominated by the infra-red regulator of the parton shower. Further, we present the first analytic comparison to preliminary ALICE data and highlight the role of non-perturbative corrections in such low-$p_t$ regime. Once the analytic result is corrected by a phenomenologically determined non-perturbative factor, we find very good agreement with the data.

arXiv commentFixed typo on Eq.1.1

References in corpus (53)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• The anti-k_t jet clustering algorithm
• A Brief Introduction to PYTHIA 8.1
• FastJet user manual
• A New Method for Combining NLO QCD with Shower Monte Carlo Algorithms
• New parton distributions for collider physics
• A General Algorithm for Calculating Jet Cross Sections in NLO QCD
• Herwig 7.0 / Herwig++ 3.0 Release Note
• Better Jet Clustering Algorithms
• Jet substructure as a new Higgs search channel at the LHC
• Identifying Boosted Objects with N-subjettiness
• Soft Drop
• Jet Trimming
• Towards an understanding of jet substructure
• Resummation of non-global QCD observables
• The t-tbar cross-section at 1.8 and 1.96 TeV: a study of the systematics due to parton densities and scale dependence
• Principles of general final-state resummation and automated implementation
• New formalism for QCD parton showers
• Review of Jet Measurements in Heavy Ion Collisions
• Phenomenology of event shapes at hadron colliders
• Infrared safe definition of jet flavour
• Sudakov Safety in Perturbative QCD
• Coherent Parton Showers with Local Recoils
• Parton showers beyond leading logarithmic accuracy
• Factorization for groomed jet substructure beyond the next-to-leading logarithm
• The Lund Jet Plane
• Logarithmic accuracy of parton showers: a fixed-order study
• Measurement of the splitting function in pp and PbPb collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}=$ 5.02 TeV
• Jet substructure with analytical methods
• Non-global logarithms and jet algorithms in high-pT jet shapes
• A study of jet mass distributions with grooming
• On jet mass distributions in Z+jet and dijet processes at the LHC
• Unsafe but Calculable: Ratios of Angularities in Perturbative QCD
• A measurement of soft-drop jet observables in $pp$ collisions with the ATLAS detector at $\sqrt{s}=13$ TeV
• The jet mass distribution after Soft Drop
• Soft drop groomed jet angularities at the LHC
• Jet Substructure Studies with CMS Open Data
• Dynamical grooming of QCD jets
• Optimisation of large-radius jet reconstruction for the ATLAS detector in 13 TeV proton-proton collisions
• The groomed and ungroomed jet mass distribution for inclusive jet production at the LHC
• Parton Shower Uncertainties with Herwig 7: Benchmarks at Leading Order
• Jets as precision probes in electron-nucleus collisions at the Electron-Ion Collider
• Measurement of Groomed Jet Substructure Observables in \pp Collisions at $\sqrt{s}=200$ GeV with STAR
• Non--global logs and clustering impact on jet mass with a jet veto distribution
• Soft-drop event shapes in electron-positron annihilation at next-to-next-to-leading order accuracy
• The soft drop groomed jet radius at NLL
• Soft-drop grooming for hadronic event shapes
• Identifying groomed jet splittings in heavy-ion collisions
• Calculating the primary Lund Jet Plane density
• Groomed jet mass at high precision
• On the resummation of clustering logarithms for non-global observables
• Tagging boosted hadronic objects with dynamical grooming
• Dynamical grooming at work: from p+p to Pb+Pb

Cited by in corpus (9)

• Heavy quarks and jets as probes of the QGP
• Spin correlations in final-state parton showers and jet observables
• Dynamically groomed jet radius in heavy-ion collisions
• Lund and Cambridge multiplicities for precision physics
• Differential measurements of jet substructure and partonic energy loss in Au$+$Au collisions at $\sqrt{s_{\mathrm{NN}}}=200$ GeV
• Pushing forward jet substructure measurements in heavy-ion collisions
• Lund multiplicity in QCD jets
• Measurements of the groomed jet radius and momentum splitting fraction with the soft drop and dynamical grooming algorithms in pp collisions at $\sqrt{s}=5.02$ TeV
• Jet radius and momentum splitting fraction with dynamical grooming in heavy-ion collisions