quantum field theory - Is there a mistake in a QFT textbook? - Physics Stack Exchange

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

quantum field theory - What is the missing part of the argument needed to justify the claim of (2.52) in Peskin and Schroeder's QFT textbook? - Physics Stack Exchange

quantum field theory - Scalar QED photon vacuum polarization - Physics Stack Exchange

How does Quantum Field Theory (QFT) redefine our understanding of the universe's cosmic tapestry? - Quora

Quantum Field Theory for the Gifted Amateur: Lancaster, Tom, Blundell, Stephen J.: 9780199699322: : Books

resource recommendations - Comprehensive book on group theory for physicists? - Physics Stack Exchange

Quantum field theory - Wikipedia

quantum field theory - What is the missing part of the argument needed to justify the claim of (2.52) in Peskin and Schroeder's QFT textbook? - Physics Stack Exchange

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

How does Quantum Field Theory (QFT) redefine our understanding of the universe's cosmic tapestry? - Quora

quantum field theory - Peskin & Schroeder's way of showing $Z_1=Z_2$ via integration by parts - Physics Stack Exchange

Is there a good book for a pure mathematics graduate to learn quantum field theory? - Quora

Quantum gravity - Wikipedia

Quantum Field Theory: A Modern Introduction: Kaku, Michio: 9780195076523: : Books