Simulation-Based Optimization of xpDIRC Geometry for Next-Generation PID

Progress in nuclear physics hinges on the ability to collect precise experimental data, necessitating the use of multi-technology particle detectors with comprehensive capabilities. The DIRC (Detection of Internally Reflected Cherenkov light) is one such technology, utilizing the spatial pattern of Cherenkov photons produced by charged particles to support their identification. The hpDIRC, a state-of-the-art detector currently under development, operates effectively at momenta up to 6 GeV. Building on the hpDIRC design for the ePIC detector at the future Electron-Ion Collider (EIC), the next-generation xpDIRC aims to extend performance up to 10 GeV. The xpDIRC introduces a hybrid optical system that combines improved focusing optics, a wide-plate light guide, and support for alternative photosensor technologies. My research employed a sophisticated Geant4-based DIRC simulation framework to analyze critical features such as plate thickness impacting xpDIRC performance and to optimize design parameters for enhanced separation power and detector capabilities.