{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.
feynman 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 tikz-feynman 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:
- YouTube: Feynman diagrams-a beginners guide in 6 minutes gives some basic idea about the diagrams
- YouTube: Feynman Diagrams and Perturbation Theory: Calculating in Particle Physics repeats the same content in some more depth, while putting it into broader context. Watch out for the very concise recaps every now and then in this video
- The book "A Guide to Feynman Diagrams in the Many-Body Problem" by Richard D. Mattuck starts easy, walks you through quantum mechanics, ending at Feynman's diagrams, with lots of useful illustrations. Find a preview, ISBN etc. e.g. at google-books
- If you want to listen to the master himself at YouTube Feynman diagrams explained by Richard Feynman ... to get an impression
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
