Speaker
Description
Particle Identification (PID) will be crucial in Future Circular Colliders (FCC-ee) experiments for precision studies involving heavy-flavour particles in Z decays, as well as jet flavour tagging in the decays of Higgs, W, and top particles.
In this context, a novel Ring Imaging Cherenkov (RICH) detector concept, named ARC (Array of RICH Cells), has been proposed.
The ARC detector is designed to provide charged hadron separation over a momentum range of 1-40 GeV, using both $C_4F_{10}$ gas (or an environmentally friendly alternative) and aerogel as radiators.
The ARC detector features a modular design composed of identical cells, each equipped with the two radiators, a spherical mirror, and a Silicon PhotoMultiplier (SiPM) photodetection plane. Simulations demonstrate excellent hadron separation capabilities across the target momentum range.
Current work focuses on implementing sophisticated pattern recognition techniques and developing a robust simulation framework that includes magnetic field effects for accurate performance evaluation.
To validate the concept, a prototype ARC cell is currently under construction for laboratory and beam tests. The prototype includes a radiator and an SiPM-based photodetection module with integrated cooling to minimize dark count noise.
Additionally, a prototype cooling plate, which will be necessary for the SiPM photodetectors, is currently being tested to evaluate its thermal management performance. The design has progressed from initial plastic prototypes to an aluminum version, up to the final ceramic prototype.\
The latest simulation results, prototype developments, and performance assessments of the ARC detector will be presented, highlighting its potential for high-precision PID at FCC-ee.
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