Feynman Diagrams · Pictures of Perturbative QFT
unseel.com · Feynman 1948 · α ≈ 1/137
Order tree
Vertices 0
Stage idle
Fermion (e⁻, μ⁻, q)
Photon (γ)
Vertex −ieγμ
Antiparticle / loop
Unseel.com · Feynman Diagrams