Measurement of the inclusive jet cross section in pp collisions at sqrt(s) = 2.76 TeV

TL;DR

This paper reports a measurement of the inclusive jet cross section in proton-proton collisions at 2.76 TeV, comparing results with QCD predictions and exploring a new kinematic region.

Contribution

First measurement of the inclusive jet cross section at 2.76 TeV in pp collisions, extending the kinematic range and testing QCD predictions with new data.

Findings

Results are consistent with next-to-leading-order QCD predictions.

Jets are reconstructed for pT from 74 to 592 GeV and |y|<3.0.

Measurement explores a previously unmeasured kinematic region.

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.