Search for the Process $${e}^{+}{e}^{-}\to \eta^{\prime}\gamma$$ with the SND Detector

The results of searches for the process $$e^{+}e^{-}\to\eta^{\prime}\gamma$$ in an experiment with the SND detector at the VEPP-2000 electron–positron collider are presented. The data used in these searches and based on an integrated luminosity of about 87 pb $${}^{-1}$$ were accumulated at c.m. energies $$\sqrt{s}$$ between 1.15 and 2 GeV. The upper limits of $$\sigma_{\eta^{\prime}\gamma}<28$$ pb for $$1.15<\sqrt{s}<1.39$$ GeV and $$\sigma_{\eta^{\prime}\gamma}<12$$ pb for $$1.39<\sqrt{s}<2.00$$ GeV were set at a 90 $$\%$$ confidence level.