Observation of the decay $ \psi (3686)\to {\mathrm{\Sigma }}^{0}{\overline{\mathrm{\Sigma }}}^{0}\omega $

Using a dataset of $ (27.12\pm 0.14)\times {10}^{8}\text{}\text{}\psi (3686)$ events collected by the BESIII detector operating at the BEPCII collider, we report the first observation of the decay $ \psi (3686)\to {\mathrm{\Sigma }}^{0}{\overline{\mathrm{\Sigma }}}^{0}\omega $ with a statistical significance of $ 8.9\sigma $. The measured branching fraction is $ (1.24\pm 0.1{6}_{\mathrm{stat}}\pm 0.1{1}_{\mathrm{sys}})\times {10}^{-5}$, where the first uncertainty is statistical and the second is systematic. Additionally, we investigate potential intermediate states in the invariant mass distributions of $ {\mathrm{\Sigma }}^{0}\omega $, $ {\overline{\mathrm{\Sigma }}}^{0}\omega $ and $ {\mathrm{\Sigma }}^{0}{\overline{\mathrm{\Sigma }}}^{0}$. A hint of a resonance is observed in the invariant mass distribution of $ {M}_{{\mathrm{\Sigma }}^{0}({\overline{\mathrm{\Sigma }}}^{0})\omega }$, located around $ 2.06\text{}\text{}\mathrm{GeV}/{c}^{2}$, with a significance of $ 2.5\sigma $.