Sumários
T10
31 março 2020, 15:00 • João Paulo Ferreira da Silva
S Matrix. Dyson expansion. Wick’s Theorem.
Feynman Diagrams in configuration space.
Bibliography: pgs. 146-156.
T9
26 março 2020, 10:00 • João Paulo Ferreira da Silva
The Schrödinger, Heisenberg and Interaction pictures.
Summary of the second quantized free fields. The real and complex scalar fields.
The fermion and photon fields. Mention of the Gupta Bleuler formalism.
Bibliography: pgs. 131-146.
T8
24 março 2020, 15:00 • João Paulo Ferreira da Silva
Polarization for real and virtual photons and impact of gauge symmetry on amplitudes.
Compton scattering (just amplitudes). Feynman Rules for QED.
END of Chapter 3
Chapter 4: S-Matrix. Wick's Theorem. Feynman Rules
Review of Lagrangian density and equations of Euler-Lagrange.
Noether’s theorem; energy and momentum as conserved charges.
Bibliography: pgs. 113-115; 54-57. P&S pgs. 15-19.
T7
19 março 2020, 10:00 • João Paulo Ferreira da Silva
2 -> 2 scattering and Mandelstam variables.
Elastic electron-muon scattering. Cross section in CM frame.
Elastic electron-muon scattering in second order in perturbation theory.
Bibliography: pgs. 100-112
No class
17 março 2020, 15:00 • João Paulo Ferreira da Silva
There was no formal class, due to an IST decision.