A First Book of Quantum Field Theory

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CRC Press, 2005 - Science - 380 pages
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This book introduces QFT for readers with no prior knowledge of the subject. It is meant to be a textbook for advanced undergraduate or beginning postgraduate students. The book discusses quantization of fields, S-matrix theory, Feynman diagrams, calculation of decay rates and cross sections, renormalization, symmetries and symmetry breaking. Some background material on classical field theory and group theory, needed for the exposition, are also presented in the book. Detailed calculations of weak and electromagnetic processes are included. There are many exercise problems to help the students, instructors and beginning researchers in the field. The second edition improves upon some notations and explanations, and includes answers to selected exercises.
  

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Contents

Preliminaries
1
Classical Field Theory
12
Quantization of scalar fields
28
Quantization of Dirac fields
47
The Smatrix expansion
72
From Wick expansion to Feynman diagrams
87
Cross sections and decay rates
115
Quantization of the electromagnetic field
146
P T C and their combinations
200
Electromagnetic form factors
222
Renormalization
245
Symmetries and symmetry breaking
283
YangMills theory of nonAbelian gauge fields
312
Standard electroweak theory
326
A Useful formulas
359
B Answers to selected exercises
369

Quantum electrodynamics
166

Common terms and phrases

Bibliographic information