Abstract
The double-differential inclusive jet cross section is measured as a function of jet transverse momentum pT and absolute rapidity y, using proton-proton collision data collected with the CMS experiment at the LHC, at a center-of-mass energy of sqrt(s) = 2.76 TeV and corresponding to an integrated luminosity of 5.43 inverse picoboarns. Jets are reconstructed within the pT range of 74 to 592 GeV and the rapidity range |y| < 3.0. The reconstructed jet spectrum is corrected for detector resolution. The measurements are compared to the theoretical prediction at next-to-leading-order QCD using different sets of parton distribution functions. This inclusive cross section measurement explores a new kinematic region and is consistent with QCD predictions.
Highlights
Jets are copiously produced in proton-proton collisions at the LHC
Within the solenoid volume are a silicon pixel and strip tracker, a lead tungstate crystal electromagnetic calorimeter (ECAL), and a brass and scintillator hadron calorimeter (HCAL), each composed of a barrel and two endcap sections
The response matrix is constructed by convolving the response function with the pT part spectrum predicted by NLO quantum chromodynamics (QCD) calculations and the CT10 parton distribution functions (PDF) set [32]. (Results with other PDF sets are discussed in Sect. 6.) The response function is represented by a kernel density estimation (KDE) technique that accurately models the tails of the distribution
Summary
Jets are copiously produced in proton-proton (pp) collisions at the LHC. In the standard model, the hard-scattering interaction between partons inside the protons is described by perturbative quantum chromodynamics (QCD). Precision measurements of inclusive jet production cross sections at different center-of-mass energies can be used to determine PDFs and αS as well as to search for deviations in their behavior from QCD predictions [4]. Inclusive jet cross section measurements have been performed at the LHC [5,6,7,8] and at other high energy colliders [9,10,11,12,13,14,15,16]. The inclusive jet production cross section, σ (pp → jet + X), is measured as a function of the jet transverse momentum pT and absolute rapidity |√y|. NP contributions to the cross section are taken into account in the theoretical prediction; electroweak contributions are negligible [20]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
