Development of Focusing DIRC Detectors
Abstract: It is not easy to achieve 4p-PID coverage in solenoid-based experiments. DIRC (
detection of internally reflected Cherenkov light
) technology has been proven in the BaBar experiment to be a very good method to do this. Since then, there was a large effort by several groups to develop focusing DIRC technology based on a smaller, faster, and highly pixelated photon detector camera. This effort started with developments by a group at SLAC, followed by Panda, GLUEX and electron-ion-collider (EIC) groups. These pixel-based technologies are compared with time-based concepts, as used in TOP and TORCH detectors.
In this talk, we will discuss the focusing DIRC detector results, show performance of photon detectors, and compare them with results of other people. We will also mention the remaining questions to be answered by future research and development.