Measurement of the Inclusive Jet Cross Section using the Kt algorithm in pp-bar Collisions at sqrt(s) = 1.96 TeV

TL;DR

This paper presents a measurement of the inclusive jet cross section in proton-antiproton collisions at 1.96 TeV, using the kt algorithm, and compares it with QCD predictions, confirming their consistency within uncertainties.

Contribution

First measurement of the inclusive jet cross section at 1.96 TeV using the kt algorithm with detailed comparison to QCD predictions.

Findings

Measured cross section agrees with NLO QCD predictions.

Validated the kt algorithm for jet reconstruction in high-energy collisions.

Provided data for testing QCD at TeV energy scales.

Abstract

We report on a measurement of the inclusive jet production cross section in pp-bar collisions at sqrt{s} = 1.96 TeV using data collected with the upgraded Collider Detector at Fermilab in Run II (CDF II) corresponding to an integrated luminosity of 385 pb^-1. Jets are reconstructed using the kt algorithm. The measurement is carried out for jets with rapidity 0.1 < | yjet | < 0.7 and transverse momentum in the range 54 < ptjet < 700 GeV/c. The measured cross section is in good agreement with next-to-leading order perturbative QCD predictions after the necessary non-perturbative parton-to-hadron corrections are included.