Orateur
Description
In the quest to unravel the mysteries of the strong force and the underlying properties of the quark-gluon plasma, the ALICE collaboration at CERN has carried out a comprehensive study focusing on the correlations between net-conserved quantities such as net-baryon, net-charge and net-strangeness. These correlations play a crucial role in the study of QCD phase structure as they are closely related to the ratios of thermodynamic susceptibilities in lattice QCD (LQCD) calculations. Recent LQCD results also suggest a significant influence of the magnetic field on the susceptibility ratios, paving the way for the use of net-conserved charges to study the magnetic field produced in peripheral heavy-ion collisions.
This presentation introduces new results focusing on the first-order correlations between net-kaon and net-proton as well as net-kaon and net-charge. Here, the net-proton and net-kaon serve as proxies for the net-baryon and net-strangeness, respectively, and measurements are performed as a function of centrality in Pb--Pb collisions at 5.02 TeV using data recorded by the ALICE detector. A comparative analysis is presented, drawing connections with corresponding results at lower collision energies from the STAR experiment at RHIC. Theoretical predictions from the hadron resonance gas model, HIJING and EPOS event generators are also compared with experimental results, providing insights into the effects of resonance decays and charge conservation laws. This comprehensive study attempts to bridge experimental data to LQCD calculations and contribute to our understanding of the complex dynamics inherent in high-energy nuclear collisions.
