Calorimeter (particle physics)

The energy may be measured in its entirety, requiring total containment of the particle shower, or it may be sampled.

A hadronic calorimeter (HCAL) is one designed to measure particles that interact via the strong nuclear force.

In addition, calorimeters are necessary for calculating "missing energy" which can be attributed to particles that rarely interact with matter and escape the detector, such as neutrinos.

In most experiments the calorimeter works in conjunction with other components like a central tracker and a muon detector.

All the detector components work together to achieve the objective of reconstructing a physics event.