Feynman Diagrams

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Neutron-Neutrino Interaction

(http://www.a-levelphysicstutor.com/images/nuclear/feynman03.jpg)

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Beta Minus Decay

(http://www.antonine-education.co.uk/Image_library/Physics_1/Particles/Feynman_6.JPG)

  • Neutron changes to proton
  • W- Boson produced and decays after very short time into beta minus particle and antineutrino
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Beta Plus Decay

  • Proton turns into neutron by weak nuclear force
  • W+ Boson produced
  • After very short time it decays into Beta plus particle and neutrino
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Proton-Proton and Electron-Electron Interaction

(http://slideplayer.com/slide/8600383/26/images/7/The+Feynman+diagram+(proton-proton+interaction).jpg)

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Electron Capture

(http://physicsnet.co.uk/wp-content/uploads/2010/05/elec-capture.jpg)

By the exchange of a W+ Boson:

  • Proton turns into neutron
  • Electron turns into neutrino
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Electron-Proton Collisions

(http://static.memrise.com/uploads/things/images/14977617_130404_1839_39.jpg)

  • If an electron and a proton collide at very high speed, they can interact through the weak force.
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