The CMS experiment is a 12,500 metric ton all purpose detector that is being prepared to study 14 TeV proton-proton collisions at the CERNLarge Hadron Collider (LHC). The LHC is the largest and most powerful accelerator ever built. Its 27 km circumference nestles between Lac Leman and the Jura mountains near Geneva.
How does a hadron collider experiment like CMS work?