Hard diffractive quarkonium hadroproduction at high energies

TL;DR

This paper investigates heavy quarkonium production via diffractive processes at high energies, using recent Pomeron models, and provides predictions relevant for understanding small-x gluon dynamics and quarkonium production mechanisms.

Contribution

It offers the first detailed predictions for diffractive quarkonium production at Tevatron and LHC energies incorporating recent diffractive parton densities and unitarity corrections.

Findings

Predicted diffractive ratios at Tevatron and LHC energies.

Sensitivity of processes to the gluon content of the Pomeron.

Potential to test quarkonium production mechanisms.

Abstract

We present a study of heavy quarkonium production in hard diffractive process by the Pomeron exchange for Tevatron and LHC energies. The numerical results are computed using recent experimental determination of the diffractive parton density functions in Pomeron and are corrected by unitarity corrections through gap survival probability factor. We give predictions for single as well as central diffractive ratios. These processes are sensitive to the gluon content of the Pomeron at small Bjorken-x and may be particularly useful in studying the small-x physics. They may also be a good place to test the different available mechanisms for quarkonium production at hadron colliders.