Beauty production at Dط

We report on the measurement of the inclusive production cross section of single muon, dimuon and heavy quarkonium states Jψ and ϒ in pp collisions at s=1.8 TeV at the Fermilab Tevatron Collider. We extract the inclusive b quark production cross section and compare the results with next to leading order QCD predictions. For the first time the measurement of the Jψ production cross section is extended to the forward region. From the information on the Jψ event topology, the muon impact parameter and the rate of χc radiative decays we estimate the role of various charmonium production mechanisms.