Theory lecture 6

30 Março 2022, 08:30 • João Nuno Ramalho Gonçalves Pires

• Double differential Lorentz Invariant cross section for Deep Inelastic electron-proton Scattering
• F1 and F2 structure function measurements at SLAC
• Bjorken scaling and Callan-Gross relation
• DIS cross section reinterpreted in the quark-parton model
• Elastic electron-quark scattering
• Parton distribution functions fits with structure function data: from SLAC to HERA experiments
• Sea and Valence quark distribution functions

Recommended reading: Chapter's 8.2 - 8.6 of Mark Thomson's book, Chapter's 8.5 - 8.6 of D.Griffith's book.

Exercise class 4

25 Março 2022, 08:30 • João Nuno Ramalho Gonçalves Pires

Discussion and solution of the fourth series of exercises.

Theory Lecture 5

23 Março 2022, 08:30 • João Nuno Ramalho Gonçalves Pires

• Relativistic electron-proton scattering
• Proton charge and magnetic distributions
• Lorentz invariant Rosenbluth elastic electron-proton cross section formula
• Experimental evidence for finite proton size
• Deep inelastic electron-proton scattering
• DIS kinematical variables and experimental data

Recommended reading: Chapter's 7.1-8.1 of Mark Thomson's book, Chapter's  8.1 - 8.4 of D.Griffith's book.

Exercise class 3

18 Março 2022, 08:30 • João Nuno Ramalho Gonçalves Pires

Discussion and solution of the third series of exercises.

Theory lecture 4

16 Março 2022, 08:30 • João Nuno Ramalho Gonçalves Pires

• Covariant form of Maxwell's equations
• Feynman rules in QED
• Electron-muon scattering matrix element
• Casimir's Trick: calculate spin-averaged amplitudes in terms of traces
  
• Electron-muon fixed target differential cross section
• Mott scattering cross section formula

Recommended reading: Chapter's 7.4-7.9 of D.Griffith's book.Chapter's 5 and 6 of Mark Thomson's book.