Reconstruction of η→π⁰γγ using an upgraded GlueX detector

Scheduled to take data in Fall 2024, the Jefferson Lab Eta Factory (JEF) experiment is a new experiment in Hall D taking advantage of an upgrade to the Forward Calorimeter, currently under construction, of the GlueX detector. The inner region of the existing Forward Calorimeter, consisting of 4 × 4 × 45 cm³ lead glass blocks, has been replaced by an array of 2 × 2 × 20 cm³ lead tungstate crystals. One of the primary goals of the experiment is to measure the rare η → π⁰γγ decay. This decay channel poses a challenge to the reconstruction of the final state due to the much more likely background channels η → 3π⁰ and the peaking channel η → 2γ. Details of the reconstruction of the final state photons will be presented.