Quarkonium Production in p-pbar Collisions at the Tevatron
  Charmonium and bottomonium production is studied using $\mu^+\mu^-$ data samples collected by the CDF and D0 experiments during the 1992-96 p-pbar collider run at the Fermilab Tevatron. The inclusive cross sections as a function of the transverse momentum of reconstructed quarkonium states are measured. The results are compared with theoretical predictions, which take into account different quarkonium production mechanisms. 
Slawek Tkaczyk (for the CDF and D0 Collaborations)