Section outline
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- Simmetries, invariance, conservation laws, symmetry breaking.
- Discrete symmetries, C,P e T. Statement of CPT theorem.
- Intrinsic parity of particles (P). Parity of the pion.[Chinowsky and Steinberger experiment(1954) on slow pion capture on deuteron]
- Intrinsic charge conjugation (C). C for photon and π0.
- Continuous symmetries and conservation laws. Statement of Noether theorem.
- Use of group theory and their representation. Angular momentum and composition rules.
- Isospin. Doublets (nucleon, ud quarks) and triplets (pion). Flavor SU(2) symmetry. G-Parity.
- Baryons and mesons from ud quarks: n,p,π,Δ,ρ,ω