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  1. The Standard Model - CERN

    Our best understanding of how these particles and three of the forces are related to each other is encapsulated in the Standard Model of particle physics. Developed in the early 1970s, it has …

  2. Standard Model - CERN

    Jan 23, 2025 · The Standard Model of particle physics is a theory concerning the electromagnetic, weak, and strong nuclear interactions, which mediate the dynamics of the known subatomic …

  3. Supersymmetry - CERN

    At first sight, the Standard Model seems to predict that all particles should be massless, an idea at odds with what we observe around us. Theorists have come up with a mechanism to give …

  4. Physics - CERN

    The model describes how everything that they observe in the universe is made from a few basic blocks called fundamental particles, governed by four forces. Physicists at CERN use the …

  5. Dark matter - CERN

    One idea is that it could contain "supersymmetric particles" – hypothesized particles that are partners to those already known in the Standard Model. Experiments at the Large Hadron …

  6. The CMS experiment at CERN measures a key parameter of the …

    Apr 3, 2024 · Precision tests of the Standard Model parameters are the legacy of electron-positron colliders, such as CERN’s LEP, which operated until the year 2000 in the tunnel that …

  7. Fifty years of quarks - CERN

    Jan 17, 2014 · Quarks are now a key part of the Standard Model. In numerous experiments at CERN including those at the Large Hadron Collider (LHC), physicists are measuring the …

  8. The Higgs boson - CERN

    You and everything around you are made of particles. But when the universe began, no particles had mass; they all sped around at the speed of light. Stars, planets and life could only emerge …

  9. Sit down for coffee with the Standard Model - CERN

    Apr 7, 2017 · The Standard Model of particle physics is one of the most successful theories about how our Universe works, and describes the fundamental interactions between elementary …

  10. A new piece in the matter–antimatter puzzle - CERN

    Mar 21, 2025 · The discovery provides new ways to address why the elementary particles that make up matter fall into the neat patterns described by the Standard Model of particle physics, …