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The Compact Muon Solenoid (CMS) is one of the large particle detectors at CERN's Large Hadron Collider. The CMS Collaboration consists of more than 4000 scientists, engineers, technicians and students from around 200 institutes and universities from more than 40 countries. You can find more information about the CMS detector on the official CMS website.
You can find usage instructions and suggestions of CMS Open Data for different scopes in:
This page gives a brief overview of CMS Open Data contents:
The following are provided through this portal: