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You are here. You are here. Electrons. Protons. Neutrons. Wait!. There’s more!. To see even smaller things, Physicists have to start smashing these together. Demonstration. This is where CERN comes in…. European Organization for Nuclear Research. Based in Geneva, Switzerland.

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  1. You are here

  2. You are here

  3. Electrons Protons Neutrons

  4. Wait! There’s more!

  5. To see even smaller things, Physicists have to start smashing these together.

  6. Demonstration

  7. This is where CERN comes in… European Organization for Nuclear Research Based in Geneva, Switzerland Leading Particle Physics lab Birthplace of the World Wide Web

  8. To find things that are very small, we have to make things that are really big France Switzerland

  9. How do they do it? Magnets! Detectors

  10. Magnets They make charged particles move in circular paths. Demonstration #2

  11. Large Hadron Collider (LHC) It will ultimately collide beams of protons. Beams of lead nuclei will be also accelerated.

  12. Leptons Quarks Up Down Electron Strange Muon Charm Top Bottom Tau Hoping to find Higgs particle at LHC

  13. This is what the detector sees after a collision Particles collide here

  14. Detectors ATLAS – AToroidal LHC ApparatuS Collide here Higgs particle Gives other particles their mass

  15. Detectors ALICE – ALarge Ion Collider Experiment To study heavy ions Detect collisions between lead nuclei Recreates the Big Bang!

  16. Lead-Lead Collision Simulation

  17. aliceinfo.cern.ch Questions Thanks for listening. www.cern.ch Presenters: Jonathan Malcolm Ian Scotland James Horton Music: Duel of the Fates – John Williams See you Space Cowboy – Seatbelts Magnet Quote from The Simpsons Video: www.cern.ch Thanks to The University of Birmingham and CERN www.atlas.ch

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