How Do You Draw a Feynman Diagram for Pi-0 Decay?

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SUMMARY

The discussion focuses on drawing Feynman diagrams, specifically for the decay of a neutral pion (\(\pi^{0}\)) into two photons (\(\gamma + \gamma\)). The user expresses confusion about representing individual quarks in the diagram, particularly for processes involving quark-antiquark pairs such as \(uu^*\) or \(bb^*\). The conversation highlights the importance of clearly labeling quarks, leptons, and bosons, as well as identifying the fundamental forces involved in these interactions.

PREREQUISITES
  • Understanding of Feynman diagrams
  • Knowledge of quark types and their interactions
  • Familiarity with fundamental forces in particle physics
  • Basic concepts of particle decay processes
NEXT STEPS
  • Study the construction of Feynman diagrams for various particle interactions
  • Learn about quark-antiquark pair production and decay processes
  • Explore the role of fundamental forces in particle physics
  • Review textbooks on quantum field theory for detailed examples
USEFUL FOR

Students of particle physics, physicists interested in quantum field theory, and anyone learning to draw and interpret Feynman diagrams.

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Homework Statement


Hey guys, so I'm new to Feynman diagrams, and I have a few to draw but i'll start with the first one.

I'm being asked to draw the following process: \pi^{0}(uu* or bb*)→\gamma +\gamma. I have to "clearly label each quark, lepton and boson, and say which fundamental force is involved".


Homework Equations



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The Attempt at a Solution



So I have no idea what to do with this. I've done some reading about Feynman diagrams but i don't know how to work with individual quarks...
 
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If, instead, you were asked to draw the Feynman diagram for electron-positron annihilation, i.e.,
$$e^- + e^+ ~\to~ \gamma + \gamma ~,
$$are you be able to do that?

If not, then... which textbook(s) are you learning from?
 

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