We report on a measurement of the ratio of b-quark production cross section in p{ovr p} collisions at (square root)s = 630 GeV and (square root)s = 1800 GeV collected by the Collider Detector at Fermilab. Results are compared to the predictions of next-to-leading order QCD calculations. 16 refs., 4 figs.

We present a preliminary measurement of the b-quark production cross section in p{anti p} collisions at (square root)s = 630 GeV. The analysis is based on 340 nb−1 of data collected with the D0 detector at the Fermilab Tevatron Collider. We determine the ratio of the b-quark production cross sections at 630 GeV to 1800 GeV and compare our results with the CDF and UA1 measurements, and with the next-to- leading order QCD predictions.

We report on a preliminary measurement of the inclusive dimuon cross section in p{bar p} collisions at (square root)s = 1.8 TeV using the D0 detector at the Fermilab Tevatron. From these results, we extract the inclusive b-quark production cross section for the kinematic range {vert_bar}y{sup b}{vert_bar}