Speaker
Description
Quantum Chromodynamics permits the formation of charge-parity violating domains inside the medium produced in heavy-ion collisions resulting in an imbalanced quark chirality. With the precense of a strong magnetic field (as strong as $10^{15}$ T) produced by the spectator protons in off-central heavy-ion collisions, this would lead to an electric-charge separation along the direction of the magnetic field known as the Chiral Magnetic Effect (CME). Experimental searches commonly utilise strategies involving charge-dependent correlations to measure the charge separation, while charge-dependent correlators are dominated by large background proportional to the elliptic flow $v_{2}$.
In this talk, I will discuss the latest studies at LHC energies and present a systematic study of the correlators used experimentally to probe CME using the Anomalous Viscous Fluid Dynamics (AVFD) model in Pb-Pb and Xe-Xe collisions at $\sqrt{s_{NN}}=5.02$ TeV and $\sqrt{s_{NN}}=5.44$ TeV, respectively. The results from AVFD suggest that Xe-Xe collisions are consistent with a background-only scenario and a significant non-zero value of axial current density (imbalanced quark chirality) is required to match the measurements in Pb-Pb collisions.
