Orateur
Description
The ePIC detector is being designed as a general-purpose detector to deliver the full physics program of the Electron-Ion Collider (EIC) in BNL USA. Particle Identification (PID) plays a crucial role in the EIC physics scope. The PID system, globally covering the pseudorapidity range (from -3.3 to 3.5), supports the electromagnetic calorimeters in electron identification thanks to its pion/electron suppression capabilities. It provides the excellent hadron identification requested, in particular, for the Semi-Inclusive DIS (SIDIS) studies.
The compact size of the collider set up and physics requirements impose challenges and a single PID system can not deliver the full physics requirements. Therefore ePIC exploits multiple advanced PID technologies to overcome this challenge.
The presentation aims to describe the PID subsystems of the ePIC detector, with a specific emphasis on high-momentum particle-identification systems using RICH technology. The presence of the magnetic field of the experimental solenoid makes the choice of the photon sensors extremely challenging. The presentation will report about the studies made with SiPMs as the photosensor candidate for forward RICH detector. Also, studies made with novel LAPPD detectors and commercial MCP-PMT as photon sensors for the backward RICH and barrel DIRC system respectively will be discussed. The presentation will include a discussion on the simulation studies made with stand-alone Geant4 simulations and official ePIC software and simulation framework.
