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Fun Pictures

Med Webster QuarkNet 2013 Vanderbilt University. Fun Pictures. Massive Moving Project What is this contraption?. Memory teaser – Who is taking that picture?. Our Brookhaven Visit The muon g-2 experiment “ring”. Many particles are like little magnets – compass needles

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Fun Pictures

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  1. Med Webster QuarkNet 2013 Vanderbilt University Fun Pictures

  2. Vanderbilt Quarknet Massive Moving ProjectWhat is this contraption?

  3. Vanderbilt Quarknet Memory teaser – Who is taking that picture?

  4. Vanderbilt Quarknet Our Brookhaven VisitThe muon g-2 experiment “ring”

  5. Vanderbilt Quarknet Many particles are like little magnets – compass needles Try to line up with a magnetic field – like compass Also spin – like a top – and, like a top, precess about the field when the forces (torque) twists it toward aligning with the field. Dirac: A simple particle going around in a circle in a magnetic field should precess one revolution in making one full circle –> g = 2

  6. Vanderbilt Quarknet Muons and electrons would be simple particles if they did not interact with that sea of virtual particles. Measuring the mismatch of precession time and around the circle time tells us how imperfect the muon is – how much it interacts with those virtual particles AND about possible unknown particles! g-2 at CERN, then at BNL were great successes but can be done even better at Fermilab and it is cheaper to move than to rebuild.

  7. Vanderbilt Quarknet The storage ring is sometimes referred to as a "700-ton Swiss watch" because of its high precision andenormous weight

  8. Vanderbilt Quarknet To measure the mass of the neutrino!

  9. Vanderbilt Quarknet One of the neutrons in tritium (proton + 2 neutrons) decays into a proton, electron, and (anti) neutrino. Lower mass, so excess energy is shared among He, electron and neutrino. Maximum electron energy is for neutrino at rest. The sum of Helium three and electron energies will be less than expected from the mass decrease if the neutrino has a rest mass.

  10. Vanderbilt Quarknet Deggendorf to Karlsruhe is about 400 km. Too big to transport by truck, so it was moved by boat, through Austria, Slovakia, Hungary, Serbia, Romania, Bulgaria, Ukraine, into the Black Sea, through the Dardanelles, the Mediterranean, the Strait of Gibraltar, the Atlantic, the English Channel, into Holland and down the Rhine. After a 9000km sea voyage to go 400km, it still had a few km by truck

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