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

Abstract

A measurement of the jet mass distribution in hadronic decays of Lorentz-boosted top quarks is presented. The measurement is performed in the lepton+jets channel of top quark pair production ($\mathrm{t}\bar{\mathrm{t}}$) events, where the lepton is an electron or muon. The products of the hadronic top quark decay are reconstructed using a single large-radius jet with transverse momentum greater than 400 GeV. The data were collected with the CMS detector at the LHC in proton-proton collisions and correspond to an integrated luminosity of 138 fb${}^{-1}$. The differential $\mathrm{t}\bar{\mathrm{t}}$ production cross section as a function of the jet mass is unfolded to the particle level and is used to extract the top quark mass. The jet mass scale is calibrated using the hadronic W boson decay within the large-radius jet. The uncertainties in the modelling of the final state radiation are reduced by studying angular correlations in the jet substructure. These developments lead to a significant increase in precision, and a top quark mass of 173.06 $\pm$ 0.84 GeV.

arXiv commentReplaced 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-21-012 (CMS Public Pages)

References in corpus (89)

• 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
• Herwig++ Physics and Manual
• Matching NLO QCD computations and parton shower simulations
• Parton distributions from high-precision collider data
• PDF4LHC recommendations for LHC Run II
• Observation of Top Quark Production in Pbar-P Collisions
• Observation of the Top Quark
• Top++: a program for the calculation of the top-pair cross-section at hadron colliders
• Higgs mass and vacuum stability in the Standard Model at NNLO
• 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
• Tuning PYTHIA 8.1: the Monash 2013 Tune
• Identifying Boosted Objects with N-subjettiness
• The CMS trigger system
• 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-
• Merging meets matching in MC@NLO
• -- HATHOR -- HAdronic Top and Heavy quarks crOss section calculatoR
• Determination of Jet Energy Calibration and Transverse Momentum Resolution in CMS
• Event generator tunes obtained from underlying event and multiparton scattering measurements
• Jet Trimming
• 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
• NLO single-top production matched with shower in POWHEG: s- and t-channel contributions
• Higgs boson mass and new physics
• Performance of the CMS muon detector and muon reconstruction with proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Extraction and validation of a new set of CMS PYTHIA8 tunes from underlying-event measurements
• Combining QCD and electroweak corrections to dilepton production in FEWZ
• Update of the global electroweak fit and constraints on two-Higgs-doublet models
• Maximizing Boosted Top Identification by Minimizing N-subjettiness
• String Formation Beyond Leading Colour
• Jet Substructure at the Large Hadron Collider: A Review of Recent Advances in Theory and Machine Learning
• $W^{+}{W}^{-}$ production at hadron colliders in NNLO QCD
• Performance of the CMS Level-1 trigger in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Precision luminosity measurement in proton-proton collisions at $\sqrt{s}=$ 13 TeV in 2015 and 2016 at CMS
• Jet Substructure at the Large Hadron Collider: Experimental Review
• Electron and photon reconstruction and identification with the CMS experiment at the CERN LHC
• Version 3 of {\tt RunDec} and {\tt CRunDec}
• Stability of the Electroweak Vacuum: Gauge Independence and Advanced Precision
• Performance of missing transverse momentum reconstruction in proton-proton collisions at $\sqrt{s}=$ 13 TeV using the CMS detector
• Colour reconnections in Herwig++
• Measurement of the inelastic proton-proton cross section at $\sqrt{s}=$ 13 TeV
• Jet Flavour Classification Using DeepJet
• Measurement of the top quark mass using proton-proton data at sqrt(s) = 7 and 8 TeV
• Identification of heavy, energetic, hadronically decaying particles using machine-learning techniques
• TUnfold: an algorithm for correcting migration effects in high energy physics
• Measurement of the $t\bar{t}$ production cross-section using $e\mu$ events with $b$-tagged jets in $pp$ collisions at $\sqrt{s}=7$ and 8 TeV with the ATLAS detector
• Effects of color reconnection on $t\bar{t}$ final states at the LHC
• Measurement of the $\mathrm{t}\overline{\mathrm{t}}$ production cross section, the top quark mass, and the strong coupling constant using dilepton events in pp collisions at $\sqrt{s}=$ 13 TeV
• Measurement of inclusive W and Z boson production cross sections in pp collisions at sqrt(s) = 8 TeV
• Measurement of the top quark mass in the $t\bar{t}\to$ lepton+jets channel from $\sqrt{s}=8$ TeV ATLAS data and combination with previous results
• Measurement of $\mathrm{t}\bar{\mathrm{t}}$ normalised multi-differential cross sections in pp collisions at $\sqrt{s}=13$ TeV, and simultaneous determination of the strong coupling strength, top quark pole mass, and parton distribution functions
• Measurement of the t-tbar production cross section in the e-mu channel in proton-proton collisions at sqrt(s) = 7 and 8 TeV
• Measurement of the top quark mass in the $t\bar{t}\to$ dilepton channel from $\sqrt{s}=8$ TeV ATLAS data
• Determination of the pole and MSbar masses of the top quark from the ttbar cross section
• Measurement of the top quark mass in the all-jets final state at $\sqrt{s}=$ 13 TeV and combination with the lepton+jets channel
• What is the Top Quark Mass?
• Cross section measurement of t-channel single top quark production in pp collisions at sqrt(s) = 13 TeV
• Extracting a Short Distance Top Mass with Light Grooming
• Measurement of jet substructure observables in $\mathrm{t}\overline{\mathrm{t}}$ events from proton-proton collisions at $\sqrt{s}=$ 13TeV
• XCone: N-jettiness as an Exclusive Cone Jet Algorithm
• Determination of the top-quark pole mass using $t\bar{t}+1$-jet events collected with the ATLAS experiment in 7 TeV $pp$ collisions
• Measurement of differential $\text{t}\overline{\text{t}}$ production cross sections in the full kinematic range using lepton+jets events from proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Measurement of the top quark mass with lepton+jets final states using pp collisions at $\sqrt{s}=$ 13 TeV
• Search for resonant $\mathrm{t}\overline{\mathrm{t}}$ production in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Measurement of the top-quark mass in $t\bar{t}+1$-jet events collected with the ATLAS detector in $pp$ collisions at $\sqrt{s}=8$ TeV
• Measurement of the WZ production cross section in pp collisions at sqrt(s) = 13 TeV
• Top-quark mass measurement in the all-hadronic $t\bar{t}$ decay channel at $\sqrt{s}$ = 8 TeV with the ATLAS detector
• Measurement of the t t-bar production cross section using events in the e mu final state in pp collisions at sqrt(s) = 13 TeV
• The MSR Mass and the $\mathcal{O}({\Lambda }_{\mathrm{QCD}})$ Renormalon Sum Rule
• Measurement of lepton differential distributions and the top quark mass in $t\bar{t}$ production in $pp$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
• Measurement of the jet mass in highly boosted t t-bar events from pp collisions at sqrt(s) = 8 TeV
• Measurement of the jet mass distribution and top quark mass in hadronic decays of boosted top quarks in pp collisions at $\sqrt{s}=$ 13 TeV
• Development and validation of HERWIG 7 tunes from CMS underlying-event measurements
• Measurement of the top quark mass in the dileptonic t t-bar decay channel using the mass observables M[bl], M[T2], and M[blnu] in pp collisions at sqrt(s) = 8 TeV
• Resolving Boosted Jets with XCone
• Measurement of the inclusive $t\bar{t}$ production cross section in $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV and determination of the top quark pole mass
• Measurements of differential cross-sections in top-quark pair events with a high transverse momentum top quark and limits on beyond the Standard Model contributions to top-quark pair production with the ATLAS detector at $\sqrt{s}=13$ TeV
• Search for a heavy resonance decaying to a top quark and a vector-like top quark in the lepton+jets final state in pp collisions at $\sqrt{s}=$ 13 TeV
• The Linear Template Fit

Cited by in corpus (11)

• Dispelling the $\sqrt{L}$ myth for the High-Luminosity LHC
• Using the $W$ as a Standard Candle to Reach the Top: Calibrating Energy Correlator Based Top Mass Measurements
• Stairway to discovery: a report on the CMS programme of cross section measurements from millibarns to femtobarns
• Reconstruction of Unstable Heavy Particles Using Deep Symmetry-Preserving Attention Networks
• Review of top quark mass measurements in CMS
• The LHC as an Axion-Photon Collider
• Medium-induced modification of groomed and ungroomed jet mass and angularities in 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
• Measurement of the top quark mass with the ATLAS detector using $t\bar{t}$ events with a high transverse momentum top quark
• Designing Observables for Measurements with Deep Learning
• How to Unfold Top Decays