Author: John Krane
Title: The Ratio of Dimensionless Jet Cross Sections at the Tevatron
Abstract: Several sources, both experimental and theoretical, subject inclusive jet cross section measurements to large uncertainties. On the experimental side,the energy scale contributes between 10\% and 30\% uncertainties. On the theoretical side, choice of parton distribution function introduces a20\% variation in the prediction; freedom in renormalization scale providesanother uncertainty of up to 30\%. The ratio of inclusive jet crosssections reduces the uncertainty from these major sources, permitting avery precise test of next--to--leading order QCD. The preliminary resultsfrom D\O\ and CDF differ from simple QCD predictions in normalizationand differ from each other at small values of jet $x_T$.
Comments: 7 pages, 5 figures. To appear in the proceedings of DPF99,Los Angeles, CA, 5-9 Jan 1999.