This book is written for students and scientists wanting to learn about the Standard Model of particle physics. Only an introductory course knowledge about quantum theory is needed. The text provides a pedagogical description of the theory, and incorporates the recent Higgs boson and top quark discoveries. With its clear and engaging style, this new edition retains its essential simplicity. Long and detailed calculations are replaced by simple approximate ones. It includes introductions to accelerators, colliders, and detectors, and several main experimental tests of the Standard Model are explained. Descriptions of some well-motivated extensions of the Standard Model prepare the reader for new developments. It emphasizes the concepts of gauge theories and Higgs physics, electroweak unification and symmetry breaking, and how force strengths vary with energy, providing a solid foundation for those working in the field, and for those who simply want to learn about the Standard Model.

>Presents the Standard Method in a deductive rather than a historical approach, allowing people with some physics training but with little interest in working in particle physics to understand this new success of modern science >The qualitatively and conceptually solid derivations presented in this book are sufficient to understand the power of the theory, while avoiding the off-putting complexity >Explains calculations that demonstrate how well the theory is tested, as well as the Higgs boson discovery and its implications

Table of Contents

1. Introduction 2. Relativistic notation, Lagrangians, and interactions 3. Gauge invariance 4. Non-abelian gauge theories 5. Dirac notation for spin 6. The Standard Model Lagrangian 7. The electroweak theory and quantum chromodynamics 8. Masses and the Higgs mechanism 9. Cross sections, decay widths, and lifetimes: W and Z decays 10. Production and properties of W± and Z? 11. Measurement of electroweak and QCD parameters: the muon lifetime 12. Accelerators - present and future 13. Experiments and detectors 14. Low energy and non-accelerator experiments 15. Observation of the Higgs boson at the CERN LHC: is it the Higgs boson? 16. Colliders and tests of the Standard Model: particles are pointlike 17. Quarks and gluons, confinement and jets 18. Hadrons, heavy quarks, and strong isospin invariance 19. Coupling strengths depend on momentum transfer and on virtual particles 20. Quark (and lepton) mixing angles 21. CP violation 22. Overview of physics beyond the Standard Model 23. Grand unification 24. Neutrino masses 25. Dark matter 26. Supersymmetry.