Quarks and Leptons: Spin-1/2 and Dirac Notation

This lecture covers the fundamental particles of the Standard Model, quarks, and leptons, discussing their spin, generation, and charge. It introduces the Dirac notation and the 2-component notation for quarks and leptons, emphasizing the importance of the 4-component notation. The lecture also touches upon the concepts of electric charge, weak isospin, and hypercharge, as well as the representation of particles under the SU(3) and SU(2) symmetry groups.