Central and Forward Inclusive Jets at the Tevatron

TL;DR

This paper presents a detailed measurement of the inclusive jet production cross section across a wide pseudorapidity range at the Tevatron, providing data to better discriminate among parton distribution functions and comparing results with QCD predictions.

Contribution

It extends previous measurements of inclusive jet cross sections to higher pseudorapidities and includes a comparison with next-to-leading order QCD calculations.

Findings

Extended pseudorapidity coverage up to |eta|=3.

Measured cross sections agree with QCD predictions.

Provided data for different center-of-mass energies.

Abstract

We report on a new measurement of the rapidity dependence of the inclusive jet production cross section in pbar p collisions at sqrt(s)=1.8 TeV using 92 pb^-1 of data collected by the DZero detector at the Tevatron collider. The differential cross sections, d^2sigma/(dEt deta), are presented as a function of jet transverse energy (Et) in five pseudorapidity (eta) intervals, up to |eta|=3, significantly extending previous CDF and DZero measurements beyond |eta|=0.7. The extended range of the measurement should provide greater discrimination among different parton distribution functions. We also discuss previous measurements of the inclusive jet cross sections made by the two collider experiments at central pseudorapidities up to |eta|=0.7. Finally, we present recent measurements from the CDF and DZero experiments of the ratio of central inclusive cross sections from two center-of-mass energies, 0.63 TeV and 1.8 TeV, as a function of jet Xt. Experimental results are compared to next-to-leading order QCD predictions.