Author(s): M. Ablikim et al. (BESIII Collaboration) Using the data sample of $2.7×{10}^{9}\text{ }\text{ }ψ(3686)$ events collected with the BESIII detector at the BEPCII collider, we present an observation of the $\mathrm{Ξ}(1530{)}^{0}$ polarization in the decay $ψ(3686)→\mathrm{Ξ}(1530{)}^{0}\overline{\mathrm{Ξ}}(1530{)}^{0}$ with a significance l… [Phys. Rev. Lett. 137, 011901] Published Mon Jun 29, 2026