Prospects for quarkonium studies at the high-luminosity LHC

Prospects for quarkonium-production studies accessible during the upcoming high luminosity phases of the CERN Large Hadron Collider operation after 2021 are reviewed. Current experimental and theoretical open issues in the field are assessed together with the potential for future studies in quarkonium-related physics. This will be possible through the exploitation of the huge data samples to be collected in proton-proton, proton-nucleus and nucleus-nucleus collisions, both in the collider and fixed-target modes. Such investigations include, among others, those of: (i) J/psi and gamma produced in association with other hard particles; (ii) chi(c,b) and eta(c,b) down to small transverse momenta; (iii) the constraints brought in by quarkonia on gluon PDFs, nuclear PDFs, TMDs, GPDs and GTMDs, as well as on the low -x parton dynamics; (iv) the gluon Sivers effect in polarised-nucleon collisions; (v) the properties of the quark-gluon plasma produced in ultra-relativistic heavy-ion collisions and of collective partonic effects in general; and (vi) double and triple parton scatterings. (C) 2021 Elsevier B.V. All rights reserved.

Automated summary

The prospects for quarkonium-production studies in the upcoming high luminosity phases of the CERN Large Hadron Collider operation after 2021 are reviewed, with a focus on current issues, potential future studies, and the utilization of huge data samples. The investigations include various aspects such as quarkonia constraints on PDFs and parton dynamics, gluon Sivers effect, properties of quark-gluon plasma, and double and triple parton scatterings.