Book contents
- Frontmatter
- Dedication
- Contents
- Preface
- Notation and Constants
- 1 Particle Physics Landscape
- 2 Preliminary Concepts: Special Relativity and Quantum Mechanics
- 3 Collisions and Decays
- 4 Conservation Rules and Symmetries
- 5 FromWave Functions to Quantum Fields
- 6 A Brief Overview of Quantum Electrodynamics
- 7 From Hadrons to Partons
- 8 Quantum Chromodynamics
- 9 Weak Interaction
- 10 Electroweak Interaction
- 11 Electroweak Symmetry Breaking
- 12 The Standard Model and Beyond
- Appendix A Elements of Group Theory for Particle Physics
- Appendix B Special Unitary Group SU(2)
- Appendix C Special Unitary Group SU(3) and SU(N)
- Appendix D Lorentz and Poincaré Groups
- Appendix E Calculating with the Dirac Delta Distribution
- Appendix F Contour Integration in the Complex Plane
- Appendix G Useful Formulas with γ Matrices
- Appendix H Fermi’s Golden Rule and Time-Dependent Perturbation
- References
- Index
9 - Weak Interaction
Published online by Cambridge University Press: 31 August 2023
Book contents
- Frontmatter
- Dedication
- Contents
- Preface
- Notation and Constants
- 1 Particle Physics Landscape
- 2 Preliminary Concepts: Special Relativity and Quantum Mechanics
- 3 Collisions and Decays
- 4 Conservation Rules and Symmetries
- 5 FromWave Functions to Quantum Fields
- 6 A Brief Overview of Quantum Electrodynamics
- 7 From Hadrons to Partons
- 8 Quantum Chromodynamics
- 9 Weak Interaction
- 10 Electroweak Interaction
- 11 Electroweak Symmetry Breaking
- 12 The Standard Model and Beyond
- Appendix A Elements of Group Theory for Particle Physics
- Appendix B Special Unitary Group SU(2)
- Appendix C Special Unitary Group SU(3) and SU(N)
- Appendix D Lorentz and Poincaré Groups
- Appendix E Calculating with the Dirac Delta Distribution
- Appendix F Contour Integration in the Complex Plane
- Appendix G Useful Formulas with γ Matrices
- Appendix H Fermi’s Golden Rule and Time-Dependent Perturbation
- References
- Index
Summary
This chapter presents the last interaction described by the Standard Model of particle physics, i.e. the weak interaction. A historical approach is followed, trying to explain the evolution of its theoretical description from the experimental discoveries: we start from Fermi theory before introducing the charged and neutral currents. The mixing matrices both in the quark sector and in the leptonic sector are described. The phenomenon of neutrino oscillation is also detailed. The chapter concludes with a detailed discussion of CP violation.
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- Fundamentals of Particle PhysicsUnderstanding the Standard Model, pp. 329 - 372Publisher: Cambridge University PressPrint publication year: 2023