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Physics
High Energy, Nuclear, Particle Physics
Understanding 1PI Diagrams and the Role in 4-Point Functions in QFT Explained
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[QUOTE="Orodruin, post: 6073467, member: 510075"] Sure you can, but the diagrams you are asking about are all of higher order in perturbation theory. Scwartz is likely working at loop order. I don’t have Schwartz here, but when you put the fermion arrows on the fermion lines there should be two diagrams. The one you show here and the one where the photobs make a cross. I will try to remember to have a look when I get to my office. [/QUOTE]
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High Energy, Nuclear, Particle Physics
Understanding 1PI Diagrams and the Role in 4-Point Functions in QFT Explained
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