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arXiv · 2501.08354

Feynman Diagrams

Stefan Weinzierl
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Abstract

We give a concise and pedagogical introduction to Feynman diagrams. After discussing a toy model which requires only undergraduate mathematics, we focus on relativistic quantum field theory. We review the derivation of Feynman rules from the Lagrangian of the theory and we discuss modern methods to compute tree and loop diagrams.

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Stefan Weinzierl. 2025-01-13. Feynman Diagrams. https://arxiv.org/abs/2501.08354

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