{feynman} is for questions relating to Feynman diagrams, which are pictorial visualizations of certain physical processes involving subatomic particles. Use the {tikz-feynman} tag if your question is related to the TikZ-Feynman package.

is for questions relating to Feynman diagrams, which are pictorial visualizations of certain physical processes involving subatomic particles.

A common package used to draw Feynman diagrams in LaTeX is the TikZ-Feynman package. If your question pertains to the use of this package, use the related tag instead.

Where to find more about the physics:

Unfortunately it's hard to find easy to digest sources, where you don't get lost quickly in this field of theoretical physics. However, here are a few which I deem being simple enough to get the basic ideas:

In a nutshell, "all" you do is:

  • follow certain rules, both for the diagrams and associated calculations
  • simply calculate all possibilities
  • to obtain an estimate for the cross section (useful when doing scatter experiments, i.e. bombarding particles with particles at high energies)

Applications typically come from:

  • nuclear physics
  • high energy physics (e.g. at colliders like at Stanford, CERN etc., planned fusion powerplants like ITER and its predecessors)
  • astronomy / cosmology