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Hadron collider 
Summary
A hadron collider is a very large particle accelerator built to test the predictions of various theories in particle physics, high-energy physics or nuclear physics by colliding hadrons. A hadron collider uses tunnels to accelerate, store, and collide two particle beams.
Colliders edit
Only a few hadron colliders have been built. These are:
- Intersecting Storage Rings (ISR), European Organization for Nuclear Research (CERN), in operation 1971–1984.
- Super Proton Synchrotron (SPS), CERN, used as a hadron collider 1981–1991.
- Tevatron, Fermi National Accelerator Laboratory (Fermilab), in operation 1983–2011.
- Relativistic Heavy Ion Collider (RHIC), Brookhaven National Laboratory, in operation since 2000.
- Large Hadron Collider (LHC), CERN, in operation since 2008.