Model JLC Detector

Quantities to Measure

• (t,x) : time and position
• (E,p) : energy and momentum

Configuration of Model JLC Detector

Role of Each Detector Component

Vertex Detector : Particle Identification

Detects production or decay points of particles. Since quasi-stable particles such as tau leptons, c- and b-quarks decay after flying a few mm from their production points, we can identify them by detecting their decay vertices.

Central Tracking Device : Momentum Measurement

Detects tracks of long-lived charged particles (electrons, muons, charged pi or K mesons, and protons). The trajectories of these charged particles are bent by the magnetic field in the superconducting solenoid. The curvatures of their tracks measure their momenta.

Calorimeter : Energy Measurement

Measures energies of particles such as electrons and photons, which produce electromagnetic shower or those of particles such as charged pi mesons, charged and neutral K mesons, protons, and neutrons.

Muon Detector : Muon Identification

Muons penetrate the calorimeter without showering. Those charged particles which reach the muon detector surrounding the calorimeter are identified as muons.

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