4.1 Yukawa’s hypothesis; properties of pi mesons- electric charge, isospin, mass,
spin and parity. 4.2 Decay modes and production of pi-mesons 4.3 Types of
interactions between elementary particles, Hadrons and leptons .4.4 Symmetries and
conservation laws, C P and CPT invariance, applications of symmetry arguments to
particle reactions, parity non-conservation in weak interactions.4.5 Quark model,
confined quarks, coloured quarks and gluons, experimental evidences for quark
model, quark-gluon interaction, quark dynamics.4.6 Grand unified theories, standard
model of particle physics.