A Course in Field Theory

Extensively classroom-tested, this textbook provides material for an introductory, one-semester field theory course for advanced undergraduate or graduate students in physics. Based on the author's course that he has been teaching for over 20 years, the text presents complete and detailed coverage of the core ideas and theories in quantum field theory. Ideal for students taking particle physics courses, it could also be used as a supplementary text for courses on the standard model and applied quantum physics.

Motivation. Quantization of Fields. Euler-Lagrange Equations. Tree-Level Diagrams. Hamiltonian Perturbation Theory. Path Integrals in Quantum Mechanics. Path Integrals in Field Theory. Perturbative Expansion in Field Theory. The Scattering Matrix. Cross Sections. Decay Rates. The Dirac Equation.