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Feynman Diagrams

  1. Feb 21, 2014 #1
    I need help :(
    How can I draw a Feynman Diagram, starting with a Lagrangian?
  2. jcsd
  3. Feb 21, 2014 #2
    1st Step: Read through any good introductory Quantum Field Theory Book.
    2nd Step: There is no second step
  4. Feb 22, 2014 #3


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    Gold Member

    depends on the fields participating in your lagrangian...and the feynman diagram rules
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