Conceptual design of PID detectors for the EicC spectrometer

A B S T R A C T The Electron-ion collider in China (EicC) is a proposed future electron-ion collider designed to achieve a high luminosity exceeding 2.0 × 10 33 cm 2 ·s −1 , with a center-of-mass energy ranging from 15 to 20 GeV. Excellent particle identification (PID) with extensive momentum coverage is essential for investigating exclusive and semi-inclusive processes, as well as enabling precise 3D imaging of the nucleon structure in the EicC experiment. To meet its PID requirement, the EicC Collaboration has proposed the conceptual design of various Cherenkov detectors, including a DIRC in the barrel region and a RICH in the endcap region. It also involving a TOF detector for PID in the low momentum region. A GEANT4 simulation, which integrate advanced optical transmission models and image reconstruction algorithms, have been used to study and optimize the performance of these detectors.