Feynman Diagrams for Beginners

Kresimir Kumericki

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arXiv · 1602.04182

Feynman Diagrams for Beginners

Kresimir Kumericki

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Abstract

We give a short introduction to Feynman diagrams, with many exercises. Text is targeted at students who had little or no prior exposure to quantum field theory. We present condensed description of single-particle Dirac equation, free quantum fields and construction of Feynman amplitude using Feynman diagrams. As an example, we give a detailed calculation of cross-section for annihilation of electron and positron into a muon pair. We also show how such calculations are done with the aid of computer.

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Kresimir Kumericki. 2016-02-08. Feynman Diagrams for Beginners. https://arxiv.org/abs/1602.04182

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