J/$\psi $ photo-production at RHIC using $\surd $s$_{\mathrm{NN}} \quad =$ 200 GeV Au$+$Au collisions

The exclusive coherent photo-production of J/$\psi $ mesons, $\gamma $A $\to $ J/$\psi $A, has been studied in $\surd $s$_{\mathrm{NN}} \quad =$ 200 GeV Au$+$Au collisions with the STAR detector at RHIC, with a photon-nucleus center of mass of energy range of [15 -- 35] GeV. The J/$\psi $ is identified via its electron and muon decay channels in the mid-rapidity region of the STAR detector. The analysis is based on an event sample corresponding to an integrated luminosity of about 1075 $\mu $b$^{\mathrm{-1}}$. The differential cross section d$\sigma $/dy is presented in the rapidity range, -1 \textless y \textless 1. Finally, the measurements are compared with theoretical predictions