A study of the γp→pηππ reaction at GlueX

The search for exotic hybrid mesons is one of the main goals of the GlueX experiment at Jefferson Lab. Possible decays of the η₁ and b₂ exotic hybrid mesons could occur through the a₂^±(1320)π^∓, f₂(1270)η, and ρη intermediate states, all of which can be detected in the ηπ⁺π^- final state. We will present results on the study of the reaction γp→pηπ⁺π^- using 9-GeV linearly-polarized photons in GlueX data. In particular, we will discuss contributions to this final state from f₁(1285) and ρη states, and we will compare these to the final state γp→pηπ⁰π⁰ , which does not couple to ρη.