12th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions

Prompt/Non-prompt J/$\psi$ production in proton-proton and Pb-Pb collisions with ALICE

24 Sept 2024, 10:00

20m

Room 103

Oral presentation 3. Heavy quarks and quarkonia Parallel 11: heavy quarkonia in medium

Speaker

Yuan Zhang (University of Science and Technology of China (CN))

Description

Quarkonium production in high-energy hadronic collisions is sensitive to both perturbative and non-perturbative aspects of QCD calculations. The charmonium production cross section can be split into prompt and non-prompt components, the first corresponding to a direct production of charm (anticharm) quarks, the second originating from the decay of beauty hadrons. The latter is important to investigate the mass dependence of heavy-quarks in-medium energy-loss mechanism. In this contribution the recent measurement of prompt and non-prompt $J/\psi$ carried out by the ALICE Collaboration in pp and Pb–Pb collisions at midrapidity ($|y|$ < 0.8) will be presented. Moreover, thanks to the installation of the new muon forward tracker (MFT),  the prompt/non-prompt charmonia separation is possible in LHC Run 3 also at forward rapidity (2.5 $< y <$ 4). The status of the new measurements will be presented and compared, where possible, with the available models.

Presentation materials

hp2024_yzhang_v7.pdf