Speaker
Description
Quarkonia are a valuable tool to investigate strongly interacting medium under extreme conditions, and particularly Quark Gluon Plasma (QGP). In heavy ion collisions, heavy quarks are produced in the early stages of the collisions and thus they experience the whole QGP evolution, allowing to investigate its properties. In addition, at LHC energies, (re)generation process has been found to have an impact on the production of charmonium. In pp collisions, quarkonium production can act as the reference in heavy ion collisions. In parallel, they can be used to test the QCD models, constraining more and more theory calculations.
The ALICE collaboration has collected sizeable data samples in pp and Pb-Pb collisions in Run 3, allowing to increase the precision of the existing measurements. In this presentation, preliminary results of ψ(2S)-to-J/ψ ratio in pp 13.6 TeV collisions, as well as the cross section of J/ψ will be presented. Performance findings of bottonium and X(3872) will also be discussed.
