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What happens at CERN?

Explore the world's largest microscope at CERN where protons collide to create new particles, shaping the future of physics. Witness cutting-edge particle physics research in action and unravel the mysteries of the universe.

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What happens at CERN?

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  1. What happens at CERN? Roger Barlow Manchester University

  2. The smaller the detail Letters ~1/5 mm Details of print ~1/50 mm Individual paper fibres ~1/500 mm The bigger the apparatus

  3. The World’s biggest Microscope

  4. CERN A co-operative European effort – sharing costs between many countries

  5. Digging out a cavern

  6. The final pillar

  7. Tunnel – completed

  8. LHC A machine for colliding protons at very high energies v=0.99999998 c

  9. What happens? • Protons collide with other protons • Energies high enough to make new particles • Particles stream out of the collision and analysed by detectors • Results are recorded electronically and stored on disk for later analysis

  10. The ATLAS detector

  11. ATLAS in reality

  12. Part of another detector (OPAL)

  13. The DELPHI detector

  14. What we see Proton hits proton and makes lots of stuff

  15. Towards the New Periodic Table(?)

  16. So finally • Particle Physics is still a live subject. New discoveries are made. Textbooks go out of date. We understand things better. • CERN is where it’s happening. For Europe and the world • CERN is important for physicists and for taxpayers • Visiting CERN is a great experience.

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