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Introduction | xi | |
1 | Lorentz and Poincare Invariance | 1 |
1.1 | Lorentz Invariance | 1 |
1.2 | Structure of the Lorentz Group | 7 |
1.3 | Poincare Invariance | 10 |
1.4 | Maxwell Equations | 10 |
1.5 | Notations and Conventions | 12 |
2 | Relativistic Quantum Mechanics of Free Particles | 15 |
2.1 | Hilbert Space | 15 |
2.2 | Matrices in Hilbert Space | 22 |
2.3 | Fields | 25 |
2.4 | Structure of Hilbert Space | 29 |
3 | Interacting Fields | 32 |
3.1 | Physical System | 32 |
3.2 | Hilbert Space | 33 |
3.3 | Magnitude of Hilbert Space | 34 |
3.4 | U-matrix, S-matrix | 35 |
3.5 | Interpolating Fields | 39 |
3.6 | Feynman Rules | 46 |
3.7 | Feynman Propagator | 54 |
3.8 | Scattering Cross Section | 55 |
3.9 | Lifetime | 60 |
3.10 | Numerical Evaluation | 62 |
3.11 | Schrodinger Equation, Bound States | 62 |
4 | Particles with Spin | 68 |
4.1 | Representations of the Lorentz Group | 68 |
4.2 | The Dirac Equation | 76 |
4.3 | Fermion Fields | 79 |
4.4 | The E.M. Field | 85 |
4.5 | Quantum Electrodynamics | 87 |
4.6 | Charged Vector Boson Fields | 91 |
4.7 | Electron-Proton Scattering. The Rutherford Formula | 92 |
5 | Explorations | 98 |
5.1 | Scattering Cross Section for e[superscript +]e[superscript -] [right arrow] [mu superscript + mu superscript -] | 98 |
5.2 | Pion Decay. Two Body Phase Space. Cabibbo Angle | 101 |
5.3 | Vector Boson Decay | 105 |
5.4 | Muon Decay. Fiertz Transformation | 108 |
5.5 | Hyperon Leptonic Decay | 117 |
5.6 | Pion Decay and PCAC | 124 |
5.7 | Neutral Pion Decay and PCAC | 131 |
6 | Renormalization | 137 |
6.1 | Introduction | 137 |
6.2 | Loop Integrals | 137 |
6.3 | Self Energy | 145 |
6.4 | Power Counting | 148 |
6.5 | Quantum Electrodynamics | 151 |
6.6 | Renormalizable Theories | 153 |
6.7 | Radiative Corrections: Lamb Shift | 154 |
6.8 | Radiative Corrections: Top Correction to [rho]-Parameter | 157 |
6.9 | Neutral Pion Decay and the Anomaly | 162 |
7 | Massive and Massless Vector Fields | 169 |
7.1 | Subsidiary Condition Massive Vector Fields | 169 |
7.2 | Subsidiary Condition Massless Vector Fields | 171 |
7.3 | Photon Helicities | 173 |
7.4 | Propagator and Polarization Vectors of Massive Vector Particles | 174 |
7.5 | Photon Propagator | 177 |
7.6 | Left Handed Photons | 180 |
8 | Unitarity | 183 |
8.1 | U-matrix | 183 |
8.2 | Largest Time Equation | 185 |
8.3 | Cutting Equations | 187 |
8.4 | Unitarity and Cutting Equation | 191 |
8.5 | Unitarity: General Case | 197 |
8.6 | Kallen-Lehmann Representation, Dispersion Relation | 200 |
8.7 | Momenta in Propagators | 204 |
9 | Quantum Electrodynamics: Finally | 207 |
9.1 | Unitarity | 207 |
9.2 | Ward Identities | 208 |
Appendix A | Complex Spaces, Matrices, CBH Equation | 213 |
A.1 | Basics | 213 |
A.2 | Differentiation of Matrices | 217 |
A.3 | Functions of Matrices | 218 |
A.4 | The CBH Equation | 220 |
Appendix B | Traces | 224 |
B.1 | General | 224 |
B.2 | Multi-Dimensional [gamma]-Matrices | 230 |
B.3 | Frequently Used Equations | 231 |
Appendix C | Dimensional Regularization | 233 |
Appendix D | Summary: Combinatorial Factors | 243 |
D.1 | Summary | 243 |
D.2 | External Lines, Spin Sums, Propagators | 245 |
D.3 | Combinatorial Factors | 247 |
Appendix E | Standard Model | 249 |
E.1 | Lagrangian | 249 |
E.2 | Feynman Rules | 258 |
Appendix F | Metric and Conventions | 273 |
F.1 | General Considerations | 273 |
F.2 | Translation Examples | 279 |
F.3 | Translation Dictionary | 281 |
Index | 282 |
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