ALICE 3 is a compact, next-generation multipurpose detector at the LHC as a follow-up to the present ALICE experiment. The aim is to build a nearly massless barrel detector consisting of truly cylindrical layers based on curved wafer-scale ultra-thin silicon sensors with MAPS technology, featuring an unprecedented low material budget of 0.05% X0 per layer, with the innermost layers possibly positioned inside the beam pipe. In addition to superior tracking and vertexing capabilities over a wide momentum range down to a few tens of MeV/c, the detector will provide particle identification via time-of-flight determination with about 20 ps resolution. In addition, electron and photon identification will be performed in a separate shower detector. The proposed detector is conceived for studies of pp, pA and AA collisions at luminosities a factor of 20 to 50 times higher than possible with the upgraded ALICE detector, enabling a rich physics program ranging from measurements with electromagnetic probes at ultra-low transverse momenta to precision physics in the charm and beauty sector.
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ALICE 3 Working Groups:
Simulation and Physics Studies:
- Simulation and performance (Matteo Concas)
- Photons and electrons (Taku Gunji, Klaus Reygers)
- Heavy flavour observables (David Chinellato, Antonio Uras)
Experiment Subsystems:
- Inner Tracker
- Outer Tracker
- Forward Conversion Tracker
- Time-of-flight detectors
- Ring Imaging Cherenkov detector
- Muon Identifier
- Electromagnetic Calorimeter
- Magnets, Infrastructure, Absorber
- Data Flow and Processing
- Detector Readout
ALICE 3 Working Groups for the LoI preparation (2020-2022):
- Photons and electrons (Raphaelle Bailhache, Taku Gunji, Klaus Reygers)
- Heavy flavour observables (David Chinellato, Gian Michele Innocenti, Antonio Uras)
- Detector design and overall layout (Werner Riegler)
- Time-of-flight detectors (Andrea Alici, Stefania Bufalino, Angelo Rivetti)
- Simulation and performance (Matteo Concas, Roberto Preghenella)
- 4D tracking (Alessandro Grelli, Magnus Mager)