## Introduction to High Energy PhysicsThis highly regarded textbook for advanced undergraduates provides a comprehensive introduction to modern particle physics. Coverage emphasizes the balance between experiment and theory. It places stress on the phenomenological approach and basic theoretical concepts rather than rigorous mathematical detail. Donald Perkins also details recent developments in elementary particle physics, as well as its connections with cosmology and astrophysics. A number of key experiments are also identified along with a description of how they have influenced the field. Perkins presents most of the material in the context of the Standard Model of quarks and leptons. He also fully explores the shortcomings of this model and new physics beyond its compass (such as supersymmetry, neutrino mass and oscillations, GUTs and superstrings). The text includes many problems and a detailed and annotated further reading list. The volume will also provide a solid foundation for graduate study. |

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### Contents

Quarks and leptons | 1 |

Interactions and fields | 35 |

Invariance principles and conservation laws | 63 |

Quarks in hadrons | 95 |

Lepton and quark scattering | 140 |

Quark interactions and QCD | 171 |

Weak interactions | 194 |

Electroweak interactions and the Standard Model | 242 |

Particle physics and cosmology | 303 |

Experimental methods | 338 |

Appendix A Table of elementary particles | 377 |

ClebschGordan coefficients and dfunctions | 386 |

Spherical harmonics dfunctions and ClebschGordan | 393 |

Answers to problems | 408 |

418 | |

Physics beyond the Standard Model | 276 |

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accelerators amplitude angle angular assuming baryon beam boson calculated called chamber Chapter charge collider colour combinations compared conservation consists constant cosmic rays coupling cross-section decay defined density depends described detector diagrams direction discussed distribution effects electric electromagnetic electron equal equation example exchange expected experimental experiments expression fact factor fermions field Figure final flavour follows function given gives gluon hadrons high energy indicated interactions invariance involved isospin lepton light limit magnetic mass matter measured mesons momentum muon neutral neutrino neutron nuclear nucleon observed obtained operator pair parity particles physics pion polarisation possible potential predicted production proton quantum quark radiation ratio reaction relativistic resonance scale scattering shown shows spin strong symmetry Table theory units universe vector violation weak weak interactions width