This dissertation presents an analysis of hadronic jet production from proton-antiproton collisions at two center-of-mass energies. Measurements were performed in the central region ([eta]

A preliminary measurement of the inclusive jet cross section at (square root){ital s} = 630 GeV is presented. The data are compared with NLO QCD predictions. The ratio of scaled inclusive jet cross section a (square root){ital s} = 1800 GeV and (square root){ital s} = 630 GeV is presented and compared with previous CDF results and QCD predictions.

Inclusive jet cross-sections have been measured in {bar p}p collisions at (square root)s = 546 and 1,800 GeV, using the CDF detector at the Fermilab Tevatron. The ratio of low E{sub t} (25--75 GeV) jet cross sections vs. E{sub t} has been formed, and the authors have used this as a tool to investigate some implications of the published 1989 CDF ''jet scaling'' results. In particular, results at 1,800 GeV have given no indication of any unsuspected errors in CDF's low E{sub t} jet measurements.

The QCD corrections to W production associated with a jet are studied using the ratio of W + 1 Jet to W + 0 Jets cross sections for a jet with a transverse energy of 25 GeV. The measured ratio of $0.096\pm0.005\sp{stat}\pm0.008\sp{syst}$ is significantly higher than the theoretical predictions of Giele et al. of 0.053. This discrepancy is at least partly due to the relatively unconstrained gluon distribution of the proton.