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Detectors

Nine detectors have been built in large caverns excavated at the LHC's intersection points. Two of them, the ATLAS experiment and the Compact Muon Solenoid (CMS), are large general-purpose particle detectors. ALICE and LHCb have more specialized roles, while the other five— TOTEM, MoEDAL, LHCf, SND and FASER —are much smaller and are for very specialized research. The ATLAS and CMS experiments discovered the Higgs boson, which is strong evidence that the Standard Model has the correct mechanism of giving mass to elementary particles.