Measurement of jet substructure observables in $\mathrm{t}\overline{\mathrm{t}}$ events from proton-proton collisions at $\sqrt{s}=$ 13TeV

Abstract

A measurement of jet substructure observables is presented using $\mathrm{t}\overline{\mathrm{t}}$ events in the lepton+jets channel from proton-proton collisions at $\sqrt{s}=$ 13 TeV recorded by the CMS experiment at the LHC, corresponding to an integrated luminosity of 35.9 fb${}^{-1}$. Multiple jet substructure observables are measured for jets identified as bottom, light-quark, and gluon jets, as well as for inclusive jets (no flavor information). The results are unfolded to the particle level and compared to next-to-leading-order predictions from POWHEG interfaced with the parton shower generators PYTHIA 8 and HERWIG 7, as well as from SHERPA 2 and DIRE 2. A value of the strong coupling at the Z boson mass, ${\alpha }_S(m_{\mathrm{Z}})=$ 0.115 ${}_{-0.013}^{+0.015}$, is extracted from the substructure data at leading-order plus leading-log accuracy.

Replaced with the published version. Added the journal reference and the DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-17-013 (CMS Public Pages)

References in corpus (104)

• 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
• An Introduction to PYTHIA 8.2
• FastJet user manual
• A general framework for implementing NLO calculations in shower Monte Carlo programs: the POWHEG BOX
• A New Method for Combining NLO QCD with Shower Monte Carlo Algorithms
• Matching NLO QCD computations with Parton Shower simulations: the POWHEG method
• Parton distributions for the LHC Run II
• Event generation with SHERPA 1.1
• Herwig++ Physics and Manual
• Matching NLO QCD computations and parton shower simulations
• New parton distribution functions from a global analysis of quantum chromodynamics
• Parton distributions in the LHC era: MMHT 2014 PDFs
• Top++: a program for the calculation of the top-pair cross-section at hadron colliders
• Herwig 7.0 / Herwig++ 3.0 Release Note
• A parton shower algorithm based on Catani-Seymour dipole factorisation
• Successive Combination Jet Algorithm For Hadron Collisions
• A Positive-Weight Next-to-Leading-Order Monte Carlo for Heavy Flavour Hadroproduction
• Better Jet Clustering Algorithms
• Comparative study of various algorithms for the merging of parton showers and matrix elements in hadronic collisions
• Particle-flow reconstruction and global event description with the CMS detector
• Identifying Boosted Objects with N-subjettiness
• The CMS trigger system
• Soft Drop
• Single-top Wt-channel production matched with parton showers using the POWHEG method
• Two-loop soft anomalous dimensions for single top quark associated production with a W- or H-
• Description and performance of track and primary-vertex reconstruction with the CMS tracker
• Merging meets matching in MC@NLO
• -- HATHOR -- HAdronic Top and Heavy quarks crOss section calculatoR
• Automatic spin-entangled decays of heavy resonances in Monte Carlo simulations
• The Catchment Area of Jets
• Event generator tunes obtained from underlying event and multiparton scattering measurements
• Jet energy scale and resolution in the CMS experiment in pp collisions at 8 TeV
• Identification of heavy-flavour jets with the CMS detector in pp collisions at 13 TeV
• Identification of b-quark jets with the CMS experiment
• Performance of electron reconstruction and selection with the CMS detector in proton-proton collisions at sqrt(s) = 8 TeV
• NLO single-top production matched with shower in POWHEG: s- and t-channel contributions
• Performance of the CMS muon detector and muon reconstruction with proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Multiparton Interactions in Photoproduction at HERA
• Towards an understanding of jet substructure
• General-purpose event generators for LHC physics
• Energy Correlation Functions for Jet Substructure
• Maximizing Boosted Top Identification by Minimizing N-subjettiness
• HATHOR for single top-quark production: Updated predictions and uncertainty estimates for single top-quark production in hadronic collisions
• String Formation Beyond Leading Colour
• Techniques for improved heavy particle searches with jet substructure
• W+W-, WZ and ZZ production in the POWHEG BOX
• Colour reconnections in Herwig++
• Angular correlations of lepton pairs from vector boson and top quark decays in Monte Carlo simulations
• New formalism for QCD parton showers
• A modified cluster-hadronization model
• Measurement of the inelastic proton-proton cross section at $\sqrt{s}=$ 13 TeV
• Gaining (Mutual) Information about Quark/Gluon Discrimination
• Boosted objects and jet substructure at the LHC
• Jet Shapes with the Broadening Axis
• Les Houches 2015: Physics at TeV Colliders Standard Model Working Group Report
• Measurement of the top quark mass using proton-proton data at sqrt(s) = 7 and 8 TeV
• Sudakov Safety in Perturbative QCD
• New Angles on Energy Correlation Functions
• The midpoint between dipole and parton showers
• Study of the fragmentation of b quarks into B mesons at the Z peak
• TUnfold: an algorithm for correcting migration effects in high energy physics
• QCD Radiation off Heavy Particles
• Factorization for groomed jet substructure beyond the next-to-leading logarithm
• Simulation of multiple partonic interactions in Herwig++
• Studies of Hadronic Event Structure in e+e- Annihilation from 30 GeV to 209 GeV with the L3 Detector
• Hadronization Corrections to Jet Cross Sections in Deep-Inelastic Scattering
• HEPData: a repository for high energy physics data
• Effects of color reconnection on $t\bar{t}$ final states at the LHC
• Inclusive Analysis of the b Quark Fragmentation Function in Z Decays at LEP
• Measurement of event shape distributions and moments in e+e- -> hadrons at 91-209 GeV and a determination of alpha_s
• Production of pi+, K+, K0, K*0, phi, p and Lambda-0 in Hadronic Z0 Decays
• Measurement of differential cross sections for top quark pair production using the lepton+jets final state in proton-proton collisions at 13 TeV
• Jet Observables Without Jet Algorithms
• Measurement of the splitting function in pp and PbPb collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}=$ 5.02 TeV
• Study of Jet Shapes in Inclusive Jet Production in ppbar Collisions at sqrt{s} = 1.96 TeV
• Studies of jet mass in dijet and W/Z + jet events
• Measurement of the b-quark fragmentation function in Z0 decays
• A study of jet mass distributions with grooming
• Triple collinear emissions in parton showers
• Casimir Meets Poisson: Improved Quark/Gluon Discrimination with Counting Observables
• Study of Jet Shapes in Inclusive Jet Production in pp Collisions at sqrt(s) = 7 TeV using the ATLAS Detector
• Implementing NLO DGLAP evolution in Parton Showers
• Exposing the QCD Splitting Function with CMS Open Data
• A measurement of the soft-drop jet mass in pp collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• A study of the b-quark fragmentation function with the DELPHI detector at LEP I and an averaged distribution obtained at the Z Pole
• Search for a Higgs boson in the decay channel H to ZZ(*) to q qbar l-l+ in pp collisions at sqrt(s) = 7 TeV
• Measurement of the charged-particle multiplicity inside jets from $\sqrt{s}=8$ TeV $pp$ collisions with the ATLAS detector
• Measurements of the differential jet cross section as a function of the jet mass in dijet events from proton-proton collisions at $\sqrt{s}=$ 13 TeV
• ATLAS measurements of the properties of jets for boosted particle searches
• An eikonal model for multiparticle production in hadron-hadron interactions
• Study of Substructure of High Transverse Momentum Jets Produced in Proton-Antiproton Collisions at sqrt(s)=1.96 TeV
• Measurements of Flavour Dependent Fragmentation Functions in Z^0 -> qq(bar) Events
• Measurement of normalized differential $\mathrm{t}\overline{\mathrm{t}}$ cross sections in the dilepton channel from pp collisions at $\sqrt{s}=$ 13 TeV
• Measurement of jet shapes in top pair events at sqrt(s) = 7 TeV using the ATLAS detector
• Measurements of jet charge with dijet events in pp collisions at sqrt(s) = 8 TeV
• Measurement of subjet multiplicities in neutral current deep inelastic scattering at HERA and determination of ${\alpha }_s$
• Substructure dependence of jet cross sections at HERA and determination of alphas
• Measurement of the jet mass in highly boosted t t-bar events from pp collisions at sqrt(s) = 8 TeV
• Searches for TeV-scale particles at the LHC using jet shapes
• HepData reloaded: reinventing the HEP data archive
• Measurement of b-jet Shapes in Inclusive Jet Production in p pbar Collisions at sqrt{s} = 1.96 TeV
• Parton Radiation and Fragmentation from LHC to FCC-ee
• Subjet distributions in deep inelastic scattering at HERA

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• Extraction and validation of a new set of CMS PYTHIA8 tunes from underlying-event measurements
• Jet Substructure at the Large Hadron Collider: A Review of Recent Advances in Theory and Machine Learning
• Jet Substructure at the Large Hadron Collider: Experimental Review
• The ALICE experiment: a journey through QCD
• Identification of heavy, energetic, hadronically decaying particles using machine-learning techniques
• Rethinking Jets with Energy Correlators: Tracks, Resummation and Analytic Continuation
• Exploration of jet substructure using iterative declustering in pp and Pb-Pb collisions at LHC energies
• A measurement of soft-drop jet observables in $pp$ collisions with the ATLAS detector at $\sqrt{s}=13$ TeV
• Extending Precision Perturbative QCD with Track Functions
• Optimisation of large-radius jet reconstruction for the ATLAS detector in 13 TeV proton-proton collisions
• Measurement of jet-substructure observables in top quark, $W$ boson and light jet production in proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Dynamically groomed jet radius in heavy-ion collisions
• End-to-End Jet Classification of Quarks and Gluons with the CMS Open Data
• Measurement of energy correlators inside jets and determination of the strong coupling ${\alpha }_{\mathrm{S}}(m_{\mathrm{Z}})$
• Search for the production of four top quarks in the single-lepton and opposite-sign dilepton final states in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Disentangling Jet Modification in Jet Simulations and in Z+Jet Data
• Coherent Showers in Decays of Colored Resonances
• Development and validation of HERWIG 7 tunes from CMS underlying-event measurements
• Study of quark and gluon jet substructure in Z+jet and dijet events from pp collisions
• Measurements of the groomed and ungroomed jet angularities in pp collisions at $\sqrt{s}=5.02$ TeV
• Measurement of the differential $\mathrm{t}\bar{\mathrm{t}}$ production cross section as a function of the jet mass and extraction of the top quark mass in hadronic decays of boosted top quarks
• Particle-based Fast Jet Simulation at the LHC with Variational Autoencoders
• Energy Correlators of Hadronically Decaying Electroweak Bosons
• CMS PYTHIA 8 colour reconnection tunes based on underlying-event data
• Optimizing Observables with Machine Learning for Better Unfolding
• The soft drop momentum sharing fraction $z_g$ beyond leading-logarithmic accuracy
• First measurements of $N$-subjettiness in central Pb$-$Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV
• Measurement of multijet azimuthal correlations and determination of the strong coupling in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Measurement of the groomed jet radius and momentum splitting fraction in pp and Pb$-$Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV
• Measurement of jet substructure in boosted $t\bar{t}$ events with the ATLAS detector using 140 fb${}^{-1}$ of 13 TeV $pp$ collisions
• Analysis note: jet reconstruction, energy spectra, and substructure analyses with archived ALEPH data
• Performance and calibration of quark/gluon-jet taggers using 140 fb${}^{-1}$ of $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Measurement of the Lund jet plane in hadronic decays of top quarks and W bosons with the ATLAS detector
• Experimental QCD summary (ICHEP 2020)
• Jet substructure of light and heavy flavor jets at RHIC
• Studying the QGP with Jets at the LHC and RHIC
• Energy Flow in Particle Collisions