Theory lecture 10
3 Maio 2023, 08:30 • João Nuno Ramalho Gonçalves Pires
- Introduction to the gauge theory of the weak interaction
- Experimental observation of parity violation in nuclear beta decay
- The parity violating vector - axial (V-A) Lorentz invariant weak charged current
- Chirality decomposition of Dirac spinors and the chiral structure of the weak interaction
- The W vertex coupling to left chiral particle states and right chiral antiparticle states
- The W-boson massive spin 1 propagator
- Fermi theory and the strength of the weak interaction coupling constant
- Helicity in pion decay: The pion to electron/anti-neutrino and muon/anti-neutrino branching ratio decay in the context of the V- A weak vertex
- Experimental evidence for the lepton Universality coupling strength in the weak charged W current
Recommended reading: chapter 11 and 6.4 of Mark Thomson's book and chapter's 10.1 to 10.4 of D.Griffith's book.