trajectory in the silicon detector and COT deposited energy in the calorimeter. If a neutral particle, such as a neutron, passes through the detector, there will be no track in the COT and silicon detector but deposited energy in the hadronic calorimeter. Muons may appear in the COT and silicon detector and as deposited energy in the muon detectors. Likewise, a neutrino, which rarely if ever interacts, will express itself only in the form of missing energy. References Further reading Worlds within the atom, National Geographic article, May, 1985 External links Fermilab news page The Collider Detector At Fermilab (CDF) Record of CDF experiment on INSPIRE-HEP Particle experiments Fermilab Fermilab experiments