Search for the process $e^+e^-\to η^\prime(958)$ with the CMD-3 detector

A search for the process $\epem\to η^\prime(958)$ in the $\pipiη\to\pipiγγ$ final state has been performed with the CMD-3 detector at the VEPP-2000 $e^+e^-$ collider. Using an integrated luminosity of 2.69 pb$^{-1}$ collected at the center-of-mass energy \Ecm = 957.68 MeV we set an upper limit for the product of electronic width and branching fractions $Γ_{η^\prime(958)\to\epem}\cdot\BR_{η^\prime(958)\to\pipiη}\cdot\BR_{η\toγγ}<0.00041$ eV at 90\% C.L.

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