Inclusive Jet Production in pbar p Collisions

TL;DR

This paper presents a new measurement of inclusive jet production cross sections in proton-antiproton collisions at 1.8 TeV, extending previous data and comparing results with QCD predictions to inform parton distribution functions.

Contribution

It provides the first detailed eta and Et dependence of the inclusive jet cross section up to |eta|=3 at Tevatron energies, with results supporting specific QCD models.

Findings

Results agree with next-to-leading order QCD predictions.

Data extends previous measurements to higher eta values.

Indicates preference for certain parton distribution functions.

Abstract

We report a new measurement of the pseudorapidity (eta) and transverse-energy (Et) dependence of the inclusive jet production cross section in pbar b collisions at sqrt(s) = 1.8 TeV using 95 pb**-1 of data collected with the DZero detector at the Fermilab Tevatron. The differential cross section d^2sigma/dEt deta is presented up to |eta| = 3, significantly extending previous measurements. The results are in good overall agreement with next-to-leading order predictions from QCD and indicate a preference for certain parton distribution functions.