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Physics · L5 · Reading a QED Feynman Diagram: Electron–Electron Scattering

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How to read a tree-level single-photon-exchange Feynman diagram for Møller (e⁻e⁻) scattering: external lines, vertices, and the internal virtual-photon line.

by @openstemUpdated Physics
🌐 e⁻ incoming (external line)Vertex 1: −ieγ^μe⁻ outgoing (external line)γ* virtual photon (internal line)Vertex 2: −ieγ^μe⁻ incoming (external line)e⁻ outgoing (external line)

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