Determination of jet calibration and energy resolution in proton-proton collisions at $\sqrt{s}$ = 8 TeV using the ATLAS detector

Abstract

The jet energy scale, jet energy resolution, and their systematic uncertainties are measured for jets reconstructed with the ATLAS detector in 2012 using proton-proton data produced at a centre-of-mass energy of 8 TeV with an integrated luminosity of 20 fb${}^{-1}$. Jets are reconstructed from clusters of energy depositions in the ATLAS calorimeters using the anti-$k_t$ algorithm. A jet calibration scheme is applied in multiple steps, each addressing specific effects including mitigation of contributions from additional proton-proton collisions, loss of energy in dead material, calorimeter non-compensation, angular biases and other global jet effects. The final calibration step uses several \textit{in situ} techniques and corrects for residual effects not captured by the initial calibration. These analyses measure both the jet energy scale and resolution by exploiting the transverse momentum balance in $\gamma$+jet, $Z$+jet, dijet, and multijet events. A statistical combination of these measurements is performed. In the central detector region, the derived calibration has a precision better than 1% for jets with transverse momentum 150 GeV $<p_{\mathrm{T}}<$ 1500 GeV, and the relative energy resolution is $(8.4\pm 0.6)$% for $p_{\mathrm{T}}=$ 100 GeV and $(23\pm 2)$% for $p_{\mathrm{T}}=$ 20 GeV. The calibration scheme for jets with radius parameter $R=1.0$, for which jets receive a dedicated calibration of the jet mass, is also discussed.

arXiv comment111 pages in total, author list starting page 95, 58 figures, 7 tables, published by Eur. Phys. J. C. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/PERF-2014-02/

References in corpus (57)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• The anti-k_t jet clustering algorithm
• A Brief Introduction to PYTHIA 8.1
• FastJet user manual
• Parton distributions for the LHC
• 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
• New parton distributions for collider physics
• Event generation with SHERPA 1.1
• Herwig++ Physics and Manual
• HERWIG 6.5: an event generator for Hadron Emission Reactions With Interfering Gluons (including supersymmetric processes)
• The ATLAS Simulation Infrastructure
• Dispelling the N^3 myth for the Kt jet-finder
• Implications of CTEQ global analysis for collider observables
• QCD Matrix Elements + Parton Showers
• Pileup subtraction using jet areas
• The Catchment Area of Jets
• Jet Trimming
• Jet energy scale and resolution in the CMS experiment in pp collisions at 8 TeV
• Topological cell clustering in the ATLAS calorimeters and its performance in LHC Run 1
• Performance of pile-up mitigation techniques for jets in $pp$ collisions at $\sqrt{s}=8$ TeV using the ATLAS detector
• Charged-particle multiplicities in pp interactions measured with the ATLAS detector at the LHC
• General-purpose event generators for LHC physics
• Jet energy measurement with the ATLAS detector in proton-proton collisions at sqrt(s) = 7 TeV
• Towards Jetography
• Luminosity determination in pp collisions at $\sqrt{s}$ = 8 TeV using the ATLAS detector at the LHC
• Electron performance measurements with the ATLAS detector using the 2010 LHC proton-proton collision data
• Jet energy scale measurements and their systematic uncertainties in proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Jet energy measurement and its systematic uncertainty in proton-proton collisions at $\sqrt{s}=7$ TeV with the ATLAS detector
• Performance of the ATLAS Trigger System in 2010
• Measurement of Higgs boson production in the diphoton decay channel in $pp$ collisions at center-of-mass energies of 7 and 8 TeV with the ATLAS detector
• Measurement of the muon reconstruction performance of the ATLAS detector using 2011 and 2012 LHC proton-proton collision data
• Electron efficiency measurements with the ATLAS detector using 2012 LHC proton-proton collision data
• Jet pair production in POWHEG
• Colour reconnections in Herwig++
• Jet energy resolution in proton-proton collisions at sqrt(s) = 7 TeV recorded in 2010 with the ATLAS detector
• A modified cluster-hadronization model
• Jet mass and substructure of inclusive jets in sqrt(s) = 7 TeV pp collisions with the ATLAS experiment
• Measurement of inclusive jet and dijet cross sections in proton-proton collisions at 7 TeV centre-of-mass energy with the ATLAS detector
• Performance of jet substructure techniques for large-R jets in proton-proton collisions at sqrt(s) = 7 TeV using the ATLAS detector
• Light-quark and gluon jet discrimination in pp collisions at $\sqrt{s}$ = 7 TeV with the ATLAS detector
• Measurement of the photon identification efficiencies with the ATLAS detector using LHC Run-1 data
• Measurement of Dijet Azimuthal Decorrelations in pp Collisions at sqrt(s)=7 TeV
• Energy Linearity and Resolution of the ATLAS Electromagnetic Barrel Calorimeter in an Electron Test-Beam
• Identification of boosted, hadronically decaying W bosons and comparisons with ATLAS data taken at $\sqrt{s}=8$ TeV
• Single hadron response measurement and calorimeter jet energy scale uncertainty with the ATLAS detector at the LHC
• Performance of the ATLAS muon trigger in pp collisions at $\sqrt{s}=8$ TeV
• Performance of algorithms that reconstruct missing transverse momentum in $\sqrt{s}=$ 8 TeV proton-proton collisions in the ATLAS detector
• In situ calibration of large-$R$ jet energy and mass in 13 TeV proton-proton collisions with the ATLAS detector
• Determination of the Absolute Jet Energy Scale in the DZERO Calorimeters
• Drift Time Measurement in the ATLAS Liquid Argon Electromagnetic Calorimeter using Cosmic Muons
• Response Uniformity of the ATLAS Liquid Argon Electromagnetic Calorimeter
• The performance of the jet trigger for the ATLAS detector during 2011 data taking
• String Parton Models in Geant4
• Identification of high transverse momentum top quarks in $pp$ collisions at $\sqrt{s}$ = 8 TeV with the ATLAS detector
• Combining Triggers in HEP Data Analysis

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• Combination of measurements of the top quark mass from data collected by the ATLAS and CMS experiments at $\sqrt{s}$ = 7 and 8 TeV
• Measurement of single top-quark production in association with a $W$ boson in the single-lepton channel at $\sqrt{s}=8$ TeV with the ATLAS detector
• Precision QCD Physics at the LHC
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• Optimizing Observables with Machine Learning for Better Unfolding
• Learning Uncertainties the Frequentist Way: Calibration and Correlation in High Energy Physics
• Measurements of the suppression and correlations of dijets in Xe+Xe collisions at $\sqrt{s_{NN}}$ = 5.44 TeV
• Search for quantum black hole production in lepton+jet final states using proton-proton collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector
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• Real time data analysis with the ATLAS Trigger at the LHC in Run-2
• Leveraging intermediate resonances to probe CP violation at colliders
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