Photoproduction of $\eta'$ mesons with the GlueX experiment

The GlueX experiment at Jefferson Lab studies the light meson spectrum and searches for hybrid and exotic mesons. In this experiment, a 9 GeV tagged, linearly polarized photon beam interacts with a liquid hydrogen target at the center of the GlueX detector. First results of the photo-production of $\eta'$ mesons at beam energies ranging from 3.5 to 11 GeV will be presented. The $\eta'$ have been identified through the decay channel $\eta'\rightarrow \pi^+ \pi^- \gamma$ , which has a large branching ratio of 29\%. No data exist for beam energies above 6 GeV for this reaction.