https://doi.org/10.1051/epjconf/202429604010
Search for the chiral magnetic and vortical effects using event shape approaches in Au+Au collisions at STAR
Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA
* e-mail: zhiwanxu@physics.ucla.edu
Published online: 26 June 2024
The chiral magnetic/vortical effect (CME/CVE) in heavy-ion collisions probes the topological sector of Quantum Chromodynamics, where P and CP symmetries are violated locally in strong interactions. However, the experimental observables for the CME/CVE are dominated by backgrounds related to elliptic flow and nonflow. We employ event shape approaches to mitigate the flow background and event planes based on spectators to minimize the nonflow background. We report on the CME search in Au+Au collisions at √SNN = 7.7, 14.6, 19.6, 27, and 200 GeV, as well as the CVE search at 19.6 and 27 GeV.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
