Speaker
Description
Lattice QCD calculations predict that a strongly-coupled QCD matter, the quark-gluon plasma (QGP), can be formed in relativistic heavy-ion collisions at extremely high temperatures and energy densities. Due to their large masses, heavy quarks ($c, b$) are predominantly produced in the initial hard scattering process before the hot QCD medium forms. Their final-state dynamics, therefore, encode information about the evolution of the system, making them effective probes to the properties of the hot QCD medium. Charmonia, bound states of a charm and an anti-charm quark, are of particular interest. In high-energy hadronic collisions, inclusive $J/\psi$ production consists of both prompt and non-prompt components. The prompt component includes $J/\psi$ produced directly or from the decays of higher-mass charmonium states (e.g., $\psi$(2S) or $\chi_c$), while the non-prompt component originates from the weak decays of bottom hadrons. Therefore, the study of the production and properties of non-prompt $J/\psi$ would provide valuable insights into those of the beauty hadrons.
The Time Projection Chamber and Inner Tracking System of the ALICE detector were recently upgraded, allowing a $\sim50$ times increase in read-out rate in Run3 of the Large Hadron Collider (LHC). In this poster, we will study the separation capability of the prompt and non-prompt $J/\psi$ components in the ALICE detector. The performance of the non-prompt $J/\psi$ measurements in Pb--Pb collisions at $\sqrt{s_{\rm NN}}$ in ALICE during LHC Run3 will be presented.
| Category | Experiment |
|---|---|
| Collaboration (if applicable) | ALICE Collaboration |
