proton–antiproton collider at CERN

Target entity: proton–antiproton collider at CERN
Context triple: [Simon van der Meer, contributedTo, proton–antiproton collider at CERN]

• A. Proton Synchrotron
  The Proton Synchrotron is a historic circular particle accelerator at CERN that has played a key role in high-energy physics research and in feeding beams to larger colliders.
• B. Large Electron–Positron Collider
  The Large Electron–Positron Collider was a major circular particle accelerator at CERN that collided electrons and positrons to probe the electroweak interaction and test the Standard Model of particle physics.
• C. CERN accelerator complex
  The CERN accelerator complex is a network of interconnected particle accelerators and beamlines near Geneva that produce and prepare high-energy particle beams for experiments such as those at the Large Hadron Collider.
• D. Super Proton Synchrotron
  The Super Proton Synchrotron is a high-energy circular particle accelerator at CERN that serves both as a research machine and as a key injector for the Large Hadron Collider.
• E. Large Hadron Collider
  The Large Hadron Collider is the world’s largest and most powerful particle accelerator, used to smash subatomic particles together at unprecedented energies to study fundamental physics, including the Higgs boson.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: proton–antiproton collider at CERN
Target entity description: The proton–antiproton collider at CERN was a high-energy particle accelerator complex that enabled the discovery of the W and Z bosons, confirming the electroweak theory of the Standard Model.

• A. Proton Synchrotron
  The Proton Synchrotron is a historic circular particle accelerator at CERN that has played a key role in high-energy physics research and in feeding beams to larger colliders.
• B. Large Electron–Positron Collider
  The Large Electron–Positron Collider was a major circular particle accelerator at CERN that collided electrons and positrons to probe the electroweak interaction and test the Standard Model of particle physics.
• C. CERN accelerator complex
  The CERN accelerator complex is a network of interconnected particle accelerators and beamlines near Geneva that produce and prepare high-energy particle beams for experiments such as those at the Large Hadron Collider.
• D. Super Proton Synchrotron
  The Super Proton Synchrotron is a high-energy circular particle accelerator at CERN that serves both as a research machine and as a key injector for the Large Hadron Collider.
• E. Large Hadron Collider
  The Large Hadron Collider is the world’s largest and most powerful particle accelerator, used to smash subatomic particles together at unprecedented energies to study fundamental physics, including the Higgs boson.
• F. None of above. chosen