The Inclusive Jet Cross Section in ppbar Collisions at sqrt{s}=1.8 TeV using the kT Algorithm

TL;DR

This paper reports the first measurement of inclusive jet cross sections at a hadron collider using a kT algorithm, showing reasonable agreement with QCD predictions based on data from the Fermilab Tevatron.

Contribution

It introduces a novel application of the kT jet algorithm for measuring inclusive jet cross sections in proton-antiproton collisions.

Findings

Jet cross section agrees with next-to-leading order QCD

First use of a successive combination algorithm in hadron collider jets

Provides data for testing QCD at high energies

Abstract

We present a preliminary measurement of the central inclusive jet cross section using a successive combination algorithm based on relative transverse momenta (kT) for jet reconstruction. We analyze a 87.3 pb-1 data sample collected by the D0 detector at the Fermilab Tevatron ppbar Collider during 1994-1995. The cross section, reported as a function of transverse momentum (pT > 60 GeV) in the central region of pseudo-rapidity (|eta| < 0.5), is in reasonable agreement with next-to-leading order QCD predictions. This is the first jet production measurement in a hadron collider using a successive combination type of jet algorithm.