An Introduction to Quantum Field TheoryAn Introduction to Quantum Field Theory is a textbook intended for the graduate physics course covering relativistic quantum mechanics, quantum electrodynamics, and Feynman diagrams. The authors make these subjects accessible through carefully worked examples illustrating the technical aspects of the subject, and intuitive explanations of what is going on behind the mathematics. After presenting the basics of quantum electrodynamics, the authors discuss the theory of renormalization and its relation to statistical mechanics, and introduce the renormalization group. This discussion sets the stage for a discussion of the physical principles that underlie the fundamental interactions of elementary particle physics and their description by gauge field theories. 
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Review: An Introduction To Quantum Field Theory (Frontiers in Physics)
User Review  DJ  Goodreadsrecommended by Ken from QuISU as a gentler introduction to QFT than Weinberg's book Read full review
Review: An Introduction To Quantum Field Theory (Frontiers in Physics)
User Review  Goodreadsrecommended by Ken from QuISU as a gentler introduction to QFT than Weinberg's book Read full review
Contents
3  
13  
35  
Elementary Processes of Quantum Electrodynamics  131 
Pair Annibilation into Photons  169 
Introduction  175 
Some Formal Developments  211 
Radiation of Gluon Jets  259 
The ColemanWeinberg Potential  469 
NonAbelian Gauge Invariance  481 
Quantization of NonAbelian Gauge Theories  505 
Quantum Chromodynamics  545 
Operator Products and Effective Vertices  599 
Perturbation Theory Anomalies  651 
Gauge Theories with Spontaneous Symmetry Breaking  689 
Quantization of Spontaneously Broken Gauge Theories  731 
Ultraviolet Cutoffs and Critical Fluctuations  265 
Functional Methods  275 
Systematics of Re normalization  315 
Renormalization and Symmetry  347 
The Renormalization Group  393 
Critical Exponents and Scalar Field Theory  439 
Decays of the Higgs Boson  775 
Quantum Field Theory at the Frontier  781 
Reference Formulae  801 
Loop Integrals and Dimensional Regularization  807 
Index  817 
Common terms and phrases
04 theory amplitude anomaly calculation CallanSymanzik equation cancel Chapter coefficient compute comumtation consider contribution corrections correlation functions counterterm coupling constant cross section deep inelastic define derivative dimensions Dirac discussion electron energy evaluate example expression external factor fermion Feynman diagrams Feynman rules finite forumla functional integral gauge boson gauge field gauge theory gives gluon Goldstone boson Green's function hadrons Hamiltonian Higgs hreaking KleinGordon Lagrangian lefthanded leptons logarithms loop Lorentz mass term massless matrix element momenta momentum nonzero oneloop operator parameters particles perturbation theory photon physical predictions problem propagator quantity quantum field theory quark relation renormalizable renormalization group representation result righthanded rotation Smatrix scalar field scale scattering shown in Fig spin spinor spontaneously hroken strong interactions symmetry theorem tion transformation ultraviolet divergences umch umltiply umst vacuum expectation value variables vector vertex Ward identity weak interaction write zero