Central

Name	Role
Drift Chamber	Measures the position and momentum of charged particles.
Pad Chambers	Measures the position of charged particles with precision.
Ring Imaging Cherenkov	Identifies Electrons.
Hadron Blind Detector	Identifies electrons without detecting hadrons.
Time Expansion Chamber	Measures the position and momentum of charged particles. Identifies particles.
Time-of-Flight	Measures the position of charged particles. Identifies particles.
Aerogel Cerenkov Counter	Identifies particles at high transverse momentum.
Time-of-Flight West	High resolution particle identification.
Electromagnetic Calorimeter	Measures the position and energy of charged and neutral particles. Identifies photons and charged particles.
Silicon Vertex Tracker	Charged particle tracking near the collision vertex.