Jet production at DO

We report on a new measurement of the rapidity dependence of the inclusive jet production cross section in p (p) over bar collisions at roots = 1.8 TeV using 92 pb(-1) of data collected by the DO detector at the Tevatron collider. The differential cross sections, <d(2)sigma/(dE(T)d eta)>, are presented as a function of jet transverse energy (E-T) in five pseudorapidity (eta) intervals, up to \ eta \ = 3, significantly extending previous measurements beyond \ eta \ = 0.7. We also present recent results on the ratio of central (\ eta \ < 0.5) inclusive cross sections from two center-of-mass energies, 0.63 TeV and 1.8 TeV, as a function of jet x(T). Experimental results are compared to next-to-leading order QCD predictions.