Measurement of $e^{+}{e}^{-}\to \omega {\eta }^{\mathrm{\prime }}$ cross sections at $\sqrt{s}=$ 2.000 to 3.080 GeV

The Born cross sections for the process $e^{+}{e}^{-}\to \omega {\eta }^{\mathrm{\prime }}$ are measured at 22 center-of-mass energies from 2.000 to 3.080 GeV using data collected with the BESIII detector at the BEPCII collider. A resonant structure is observed with a statistical significance of 9.6$\sigma$. A Breit-Wigner fit determines its mass to be $M_R=(2153\pm 30\pm 31)\mathrm{M}\mathrm{e}\mathrm{V}\mathrm{/}{c}^2$ and its width to be ${\mathrm{\Gamma }}_R=(167\pm 77\pm 7)\mathrm{M}\mathrm{e}\mathrm{V}$, where the first uncertainties are statistical and the second are systematic.