The Compact Muon Solenoid (CMS) is a general-purpose detector at the Large Hadron Collider (LHC). It has a broad physics programme ranging from studying the Standard Model (including the Higgs boson) to searching for extra dimensions and particles that could make up dark matter.
The CMS experiment is one of the largest international scientific collaborations in history, involving 4300 particle physicists, engineers, technicians, students and support staff from 182 institutes in 42 countries (February 2014).
IBERGRID and EGI provide integration and support to the Portuguese and Spanish high energy physics research laboratories that contribute to the Worldwide LHC Computing Grid delivering computing and storage capacity to process and analyse data from the CMS experiment.