Speaker
Description
The ALICE Collaboration proposed a completely new apparatus, ALICE 3, for the LHC Runs 5 and 6, which will enable novel studies of the QGP focusing on low-pT heavy-flavour production and on precise multi-differential measurements of dielectron emission. The detector consists of a large pixel tracker covering eight units of pseudorapidity and a comprehensive particle identification (PID) system, implementing silicon time-of-flight (TOF), featuring 20 ps resolution, ring-imaging Cherenkov (RICH), muon identification, and electromagnetic calorimetry. High-purity separation of electrons with pT as low as 60 MeV/c and up to about 3 GeV/c at midrapidity, and of hadrons up to a pT of 20 GeV/c, is achieved by the TOF and RICH, which are arranged in barrel and end-caps for full rapidity coverage. This contribution will present the PID subsystems conceptual design and technology options, as well as expected performance from simulation studies and first results achieved in ongoing R&D activities.
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