Jet Measurements In CMS
Abstract
A measurement of inclusive jet and dijet production cross sections is presented. Data from large hadron collider (LHC) proton-proton collisions at s= 7 TeV, corresponding to 4.67 fb-1 of integrated luminosity, have been collected with the compact muon solenoid (CMS) detector. Jets are reconstructed with the anti-kT clustering algorithm with size parameter R=0.7, extending to rapidity |y|=2.5, transverse momentum pT= 2 TeV, and dijet invariant mass MJJ= 5 TeV. The measured cross sections are corrected for detector effects and compared to perturbative QCD predictions at next-to-leading order (NLO), corrected for non perturbative (NP) factors, using various sets of parton distribution functions. Determination Of Jet Energy Correction from s= 7 TeV CMS data is presented. The individual components are determined. The jet energy scale uncertainty factors are also shown.