Table of Contents

Preface. Experimental and theoretical elements: Quarks and leptons, and the forces between them. Electromagnetism as a gauge theory. The Klein-Gordon and Dirac wave equations, and the interpretation of their negative energy solutions. Quantum field theory. The best theory we have of quantum electrodynamics: The electromagnetic interactions of spin-0 particles: forces and particle exchange processes. The electromagnetic interactions of spin-1/2 particles. Deep inelastic electron-nucleon scattering and the quark parton model. Non-Abelian gauge theory and QCD: Non-Abelian gauge theory. An introduction to quantum chromodynamics. Not quite a theory - Phenomenology of weak interactions: Introduction to weak interactions. The hadronic weak current and neutral currents. Difficulties with weak interaction phenomenology. Theory of electroweak interactions: Hidden gauge invariance - the U(1) case. The Glashow-Salam-Weinberg gauge theory of electroweak interactions. Four last things. Appendices. References. Index.