Determination of Jet Energy Calibration and Transverse Momentum Resolution in CMS

By Cms Collaboration. 2011

987 citations recorded by the source corpus.

Measurements of the jet energy calibration and transverse momentum resolution in CMS are presented, performed with a data sample collected in proton-proton collisions at a centre-of-mass energy of 7 TeV, corresponding to an integrated luminosity of 36 pb−1. The transverse momentum balance in dijet and γ/Z+jets events is used to measure the jet energy response in the CMS detector, as well as the transverse momentum resolution. The results are presented for three different methods to reconstruct jets: a calorimeter-based approach, the “Jet-Plus-Track” approach, which improves the measurement of calorimeter jets by exploiting the associated tracks, and the “Particle Flow” approach, which attempts to reconstruct individually each particle in the event, prior to the jet clustering, based on information from all relevant subdetectors.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/568498b494651a98b27b4d9e9ae363f1f40c48be

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In Nuclear and High Energy Physics

Citations in the corpus

Jet substructure at the Large Hadron Collider (2018, methodology): “For example calorimeter jets in ATLAS with Etrue = 30GeV may have responses below 0.3, while jets of higher energies may have responses above 0.8.”
Measurement of the top quark mass using proton-proton data at √s=7 and 8 TeV (2016, methodology): “Using the JEC determined from γ=Z þ jet events in combination with the JSF prior from the 2D fit yields the results in the 1D and hybrid approaches of m1Dt ¼ 172.46 0.23ðstatÞ GeV; mhybt ¼ 172.32 0.25ðstatþ JSFÞ GeV; JSFhyb ¼ 1.002 0.001ðstatÞ: For the all-jets channel, the fitted results for the JS”
Constraining Dark Sectors at Colliders: Beyond the Effective Theory Approach (2014, methodology): “The resulting three leading jets with a pT above 15 GeV are smeared following the resolution functions quoted by CMS [72].”
Search for dark matter and large extra dimensions in monojet events in pp collisions at sqrt(s) = 7 TeV (2012, methodology): “These corrections are derived from Monte Carlo (MC) simulation and, for data events, are supplemented by a correction, derived by measuring the pT balance in dijet events from collision data [35].”
Identification of b-quark jets with the CMS experiment (2012, methodology): “The effects of the jet energy scale are taken into account by varying the energy scale of the jets according to its uncertainty [28].”
Measurement of Higgs boson production and properties in the WW decay channel with leptonic final states (2013, methodology): “The uncertainties in the yields from missing higher-order corrections are evaluated by independently varying up and down the factorization and renormalization scales by a factor of two.”
Search for new physics in the multijet and missing transverse momentum final state in proton-proton collisions at $ \sqrt{s} $ = 8 TeV (2014, methodology): “The uncertainty from the measurement of the jet energy scale and jet energy resolution [27] leads to uncertainties of 2–8% and 1–2% in signal acceptance.”
Study of double parton scattering using W + 2-jet events in proton-proton collisions at $ \sqrt{s} $ = 7 TeV (2013, positive): “These corrections are based on in-situ measurements using dijet, γ + jet, and Z + jet data samples [53].”
Search for Supersymmetry at the LHC in Events with Jets and Missing Transverse Energy (2011, methodology): “The raw jet energies measured by the calorimeter systems are corrected to establish a uniform relative response in η and a calibrated absolute response in transverse momentum pT with an associated uncertainty between 2% and 4%, depending on the jet η and pT [33].”
Observation of the Associated Production of a Single Top Quark and a W Boson in pp Collisions at √s=8 TeV (2014, neutral): “[27] CMS Collaboration, “Determination of Jet Energy Calibration and Transverse Momentum Resolution in CMS”, JINST 6 (2011) P11002, doi:10.”
Jet energy scale and resolution in the CMS experiment in pp collisions at 8 TeV (2016, methodology): “The minimum JES uncertainty of 0.32% for jets with 165 pT 330 GeV and |η| 0.8, when excluding sample-dependent uncertainties due to jet-flavor response and time-dependent detector response variations, surpasses the precision of previous JES measurements at the Tevatron [15, 16] and the LHC [13”