## Gauge Thetheoriesin Particle Physics, Second EditionThis book will provide you with a good practical understanding of quantum electrodynamics, quantum chromodynamics and the electroweak theory, which together make up the standard model. The new edition includes over 50 diagrams showing experimental data, allowing the reader to work through calculations in the three gauge theories and compare the results with experiment. |

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### Contents

Preface | 1 |

relativistic quantum field theory | 23 |

Electromagnetism as a gauge theory | 41 |

Copyright | |

21 other sections not shown

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### Common terms and phrases

4-momentum 4-vector amplitude analogous angular antiquark atoms baryon boson calculation Chapter charge colour components conservation consider contribution corresponding coupling covariant cross section decay defined degrees of freedom diagram Dirac equation discussion distribution divergence electromagnetic electron energy example fact factor fermion Feynman force free particle function gauge field gauge invariance gauge theories generalisation gluon gsw theory hadronic Hamiltonian Higgs integral involving isospin Lagrangian lepton loop Lorentz lowest-order magnetic mass massless matrix element Maxwell equations momentum negative-energy neutral current neutrino normalisation nucleon obtain operator pair parameter parton model perturbation theory phase invariance photon physical pion pointlike polarisation vector potential prediction problem propagator quantised quantum field theory quantum mechanics quantum numbers quark relativistic renormalisable result scalar shown in figure solutions spin spinors strong interactions superconductor symmetry tensor tion transformation transverse tree graphs unitarity vacuum variables vertex wave equation wavefunction weak interactions