Properties of Jets in Z Boson Events from 1.8 TeV $\bar{p}p$ Collisions

TL;DR

This paper analyzes Z boson events with multiple jets in proton-antiproton collisions at 1.8 TeV, measuring cross sections and jet properties, and comparing results to QCD predictions.

Contribution

It provides detailed measurements of Z + n jet cross sections and jet characteristics, validating leading order QCD models with gluon radiation and fragmentation.

Findings

Data agree with QCD predictions for jet production.

Measured cross sections for Z + 1 to 4 jets.

Validated QCD models with experimental data.

Abstract

We present a study of events with Z bosons and hadronic jets produced in $\bar{p}p$ collisions at a center-of-mass energy of 1.8 TeV. The data consist of 6708 $Z \to e^+e^-$ decays from 106 pb$^{-1}$ of integrated luminosity collected using the CDF detector at the Tevatron Collider. The Z $+ \ge n$ jet cross sections and jet production properties have been measured for n = 1 to 4. The data compare well to predictions of leading order QCD matrix element calculations with added gluon radiation and simulated parton fragmentation.