Quarkonium Production in p-pbar Collisions at the Tevatron

TL;DR

This paper measures the production rates of charmonium and bottomonium in proton-antiproton collisions at the Tevatron, comparing experimental results with theoretical models to understand quarkonium production mechanisms.

Contribution

It provides the first detailed measurements of inclusive quarkonium cross sections as functions of transverse momentum at the Tevatron, testing various production theories.

Findings

Measured inclusive cross sections for charmonium and bottomonium.

Compared experimental data with multiple theoretical models.

Identified discrepancies between data and some production mechanism predictions.

Abstract

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.