Non-Global Logarithms in Filtered Jet Algorithms

Abstract

We analytically and numerically study the effect of perturbative gluons emission on the "Filtering analysis", which is part of a subjet analysis procedure proposed two years ago to possibly identify a low-mass Higgs boson decaying into b\bar{b} at the LHC. This leads us to examine the non-global structure of the resulting perturbative series in the leading single-log large-N_c approximation, including all-orders numerical results, simple analytical approximations to them and comments on the structure of their series expansion. We then use these results to semi-analytically optimize the parameters of the Filtering analysis so as to suppress as much as possible the effect of underlying event and pile-up on the Higgs mass peak reconstruction while keeping the major part of the perturbative radiation from the b\bar{b} dipole.

47 pages, 25 figures, 1 figure and a few comments added, version accepted for publication in JHEP

References in corpus (52)

• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• The anti-k_t jet clustering algorithm
• HERWIG 6.5: an event generator for Hadron Emission Reactions With Interfering Gluons (including supersymmetric processes)
• High-Energy-Physics Event Generation with PYTHIA 6.1
• Dispelling the N^3 myth for the Kt jet-finder
• Better Jet Clustering Algorithms
• Jet substructure as a new Higgs search channel at the LHC
• Pileup subtraction using jet areas
• The Catchment Area of Jets
• Renormalons
• Jet Trimming
• Resummation of non-global QCD observables
• Top-tagging: A Method for Identifying Boosted Hadronic Tops
• Jet substructure as a new Higgs search channel at the LHC
• Recombination Algorithms and Jet Substructure: Pruning as a Tool for Heavy Particle Searches
• Fat Jets for a Light Higgs
• Principles of general final-state resummation and automated implementation
• Strategies to Identify Boosted Tops
• A precise determination of alpha_s from LEP thrust data using effective field theory
• WW scattering at the LHC
• Nonperturbative Corrections in Resummed Cross Sections
• Away-from-jet energy flow
• Non-perturbative QCD effects in jets at hadron colliders
• Super-leading logarithms in non-global observables in QCD?
• Accounting for coherence in interjet E_t flow: a case study
• Resummed event shapes at hadron-hadron colliders
• On the QCD analysis of Jet Broadening
• Top Jets at the LHC
• Non-global logarithms in inter-jet energy flow with kt clustering requirement
• Resummed $C$-Parameter Distribution in $e^{+}{e}^{-}$ Annihilation
• Determination of the strong coupling constant using matched NNLO+NLLA predictions for hadronic event shapes in e+e- annihilations
• On QCD resummation with kt clustering
• Non-global jet evolution at finite N_c
• Discovering baryon-number violating neutralino decays at the LHC
• t' at the LHC: the physics of discovery
• Reconstructing Sparticle Mass Spectra using Hadronic Decays
• Discovering the Higgs Boson in New Physics Events using Jet Substructure
• Using jet mass to discover vector quarks at the LHC
• Resummation of thrust distributions in DIS
• Standard Model Handles and Candles Working Group: Tools and Jets Summary Report
• Dijet rates with symmetric E_t cuts
• Quantifying the performance of jet definitions for kinematic reconstruction at the LHC
• Top-antitop and Top-top Resonances in the Dilepton Channel at the CERN LHC
• Searching for t-bar t Resonances at the Large Hadron Collider
• Grand Unification and Light Color-Octet Scalars at the LHC
• QCD analysis of near-to-planar 3-jet events
• Jet energy flow at the LHC
• Resumming the Light Hemisphere Mass and Narrow Jet Broadening distributions in e^+e^- annihilation
• On the universality of hadronisation corrections to QCD jets
• The Four-Jet Rate in e+e- Annihilation
• Light Higgs searches at the LHC using jet substructure

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• Soft Drop
• Towards an understanding of 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
• Non-global logarithms and jet algorithms in high-pT jet shapes
• Non-global Structure of the O(α_s^2) Dijet Soft Function
• Non-Global Logarithms, Factorization, and the Soft Substructure of Jets
• QCD resummation for hadronic final states
• Non-global Logarithms at 3 Loops, 4 Loops, 5 Loops and Beyond
• Jet Cleansing: Pileup Removal at High Luminosity
• On jet substructure methods for signal jets
• Hemisphere jet mass distribution at finite $N_c$
• The Analytic Structure of Non-Global Logarithms: Convergence of the Dressed Gluon Expansion
• Higher-order non-global logarithms from jet calculus
• Non-global logarithms at finite Nc beyond leading order
• Jet Substructure and the Search for Neutral Spin-One Resonances in Electroweak Boson Channels
• Double Non-Global Logarithms In-N-Out of Jets
• The Asymptotic Form of Non-Global Logarithms, Black Disc Saturation, and Gluonic Deserts
• QCD and Jets at Hadron Colliders
• Novel subjet observables for jet quenching in heavy-ion collisions
• A data-driven method of pile-up correction for the substructure of massive jets
• Implications of QCD radiative corrections on high-pT Higgs searches
• Jet Substructure Templates: Data-driven QCD Backgrounds for Fat Jet Searches
• Optimal jet radius in kinematic dijet reconstruction
• Pileup and Infrared Radiation Annihilation (PIRANHA): A Paradigm for Continuous Jet Grooming
• Non-Global Correlations in Collider Physics
• On the resummation of non-global logarithms at finite ${\mathbf{N}}_{\mathbf{c}}$
• QCD resummation for high-p${}_T$ jet shapes at hadron colliders