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What and How?

Quarknet JHU 2025

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Roentgen, Becquerel, Curies, et al

Rays

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JJ Thomson

Constituents

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Rutherford (Geiger/Marsden)

Substructure

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Planck, Millikan, Bohr, Einstein...

  • Continuum → Quantum

Quantization

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Schrodinger, DeBroglie, Born

Waves↔Particles

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Heisenberg, Born, Jordan

  • Quantum (Matrix) Mechanics
  • Uncertainty!

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Pauli, Dirac, Fermi, Anderson...

New particles

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QFT

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Coherence

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Detectors

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Striking gold

“First particle collider experiment”

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Cloud Chamber

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Bubble Chamber

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How do you get circles?

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The LHC

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Experiment Types

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Detector Pieces

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Detectors

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ATLAS

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ATLAS

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CMS

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CMS

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A Word About Units

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Qty Formula SI Unit HEP Unit

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Energy K~mv2 Joule GeV

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Mom. p=mv J/speed Gev/c

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Mass m J/speed2 Gev/c2

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In the “natural units” system, c is often set to be 1 for convenience…

 

 

Clean up and solve for mass…

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PM Choice Sessions

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  • DESMOS
  • Neutrinos
  • CMB Temperature / Rotation Curves
  • Raspberry Pi Muons
  • Bauder Fund grant writing
  • Plan a tour
  • More new DAP activities
  • 3D printing quarks
  • Lab activities (mag torque, e/m, spec…)

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