Lesson 9 - Feynman Diagrams

• In Feynman diagrams, exchange particles are represented by wiggly lines and matter particles are represented by straight lines
• The W-bosons can carry charge from one side to the other. A W- going to the left has the same effect as a W+ boson going to the right
• Beta- decay

  A) n

  B) p

  C) e-

  
• Beta+ decay

  A) p

  B) n

  C) e+

  
• Electron capture

  A) p

  B) n

  C) e-

  D) W+

  
• Proton-electron collision

  A) p

  B) n

  C) e-

  D) W-

  
• Electron-electron repulsion

  A) gamma