Erratum: Global Polarization of Ξ and Ω Hyperons in Au + Au Collisions at √s_NN = 200 GeV [Phys. Rev. Lett. 126, 162301 (2021)]

This corrects the article DOI: 10.1103/PhysRevLett.126.162301.

Global polarization of Ξ and Ω hyperons has been measured for the first time in Au+Au collisions at √𝑠𝑁⁢𝑁 =200  GeV. The measurements of the Ξ− and ¯Ξ+ hyperon polarization have been performed by two independent methods, via analysis of the angular distribution of the daughter particles in the parity violating weak decay Ξ →Λ +𝜋, as well as by measuring the polarization of the daughter Λ hyperon, polarized via polarization transfer from its parent. The polarization, obtained by combining the results from the two methods and averaged over Ξ− and ¯Ξ+, is measured to be ⟨𝑃Ξ⟩=0.47±0.10⁢(stat)±0.23⁢(syst)% for the collision centrality 20%–80%. The ⟨𝑃Ξ⟩ is found to be slightly larger than the inclusive Λ polarization and in reasonable agreement with a multiphase transport model. The ⟨𝑃Ξ⟩ is found to follow the centrality dependence of the vorticity predicted in the model, increasing toward more peripheral collisions. The global polarization of Ω, ⟨𝑃Ω⟩ =1.11 ±0.87⁢(stat) ±1.97⁢(syst)% was obtained by measuring the polarization of daughter Λ in the decay Ω →Λ +𝐾, assuming the polarization transfer factor 𝐶Ω⁢Λ =1.