Abstract
The hot and dense matter produced in non-central heavy-ion collisions possess a large initial orbital angular momentum. This initial orbital angular momentum leads to global polarization of final state hadrons, which could be measured via parity violating weak decays of hyperons. The STAR experiment observed non-zero \(\Lambda \) global polarization. A large amount of new data provide opportunities to measure multistrange hyperon polarization. It could be important input for hydrodynamic studies of the system. In this proceedings, we report results of \(\Xi \) hyperon global polarization (\({{P}_{{{{\Xi }^{ - }} + {{{\bar {\Xi }}}^{ + }}}}}\)) measurement for Au + Au collisions at \(\sqrt {{{s}_{{NN}}}} \) = 27, 54.4 and 200 GeV.
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Alpatov, E. Global Polarization of Ξ Hyperons in Au + Au Collisions from the STAR Experiment. Phys. Part. Nuclei 54, 571–574 (2023). https://doi.org/10.1134/S1063779623040056
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DOI: https://doi.org/10.1134/S1063779623040056