The ratio of inclusive jet cross sections at 630 GeV and 1800 GeV

Abstract

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 [special characters omitted] of the DØ detector at Fermi National Accelerator Laboratory (Batavia, IL). Results are compared to next-to-leading-order QCD predictions generated with JETRAD and EKS Monte Carlo. Several techniques reduce the uncertainty in the ratio of cross sections to as low as 5%. The observed normalization difference results in a low probability that the data and predictions describe the same distribution.