Improving Particle Identification for the GlueX experiment Through the Analysis of 𝜔 & 𝜙

GlueX is a particle physics experiment located in Hall D at the Thomas Jefferson National Accelerator Facility in Newport News, Virginia, and has been active since 2017. Its primary goal is to search for hybrid mesons, for better understanding of the light meson spectrum and the strong force. GlueX enables the reconstruction of exclusive final states and the identification of intermediate particle resonances, which are the producers of the final state particles. This project contributes to the Particle Identification ​(PID) efforts within GlueX by quantifying the efficiency of current PID selections across the detector's kinematic coverage and examining modeling uncertainties between data and Monte Carlo simulations (MC). The particle decay modes used in these studies are 𝜔→𝜋+𝜋-𝜋0 and 𝜙→K+K-. Both particles have long life times and small natural decay widths, and their measured widths are dominated by detector resolution. Thus, any change in PID criteria that impacts the resolution will directly affect their measured widths. To study this, we assess the systematic uncertainty in PID cuts by comparing efficiencies in MC to those in data. This process involves extracting the yield of our chosen particles to calculate the efficiency. The results help assess systematic uncertainties and improve confidence in GlueX's PID performance and event selection.