I tried to calculate one of the problems in the textbook Gauge Theory of Elementary Particle Physics by Ta-Pei Cheng and Ling-Fong Li. On page 248 you can find the following calculation of a loop
Electromagnetism in quantum field theory (part 1) – Quantum field theory
Quantum field theory is the basic mathematical framework that is used to describe elementary particles. This textbook provides a complete and
Quantum Field Theory
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Electromagnetism in quantum field theory (part 1) – Quantum field theory
What are the prerequisites for reading Landcaster and Blundell's 'QFT for the gifted amateur'? Is a knowledge of basic quantum mechanics (1st 5 chapters of griffiths),General relativity and analytical mechanics (with Classical
