** **

**Symmetries:** SU(2) isospin, SU(3) color, SU(3) isospin x strangeness

**Quarks:** Mesons, baryons, magnetic moments, heavy quarks

**Antiparticles:** Klein-Gordon equation, perturbation theory, Feynman approach

**Electrodynamics of spinless particles**: Cross sections, decay rates, invariants

**Dirac equation:** Review of Dirac algebra in covariant form

**Electrodynamics of spin-1/2 particles:**

Electron-electron, electron-muon,electron-positron collisions, helicity conservation, propagators,parton model kinematics, Feynman rules for QED

**Renormalization**: brief discussion

**Hadron structure:** Partons, Bjorken scaling in deep inelastic scattering, structure functions of quarks and gluons

**Electron-positron annihilation and quantum chromodynamics:** Fragmentation, three jet events, perturbative QCD

**Weak Interactions:** Parity violation, beta decay, muon and pion decays, neutrino scattering, neutral currents, weak mixing angles, CKM matrix

**Electroweak Interaction:** Electron-positron annihilation at the Z Mass**,** electroweak interference

**Gauge Invariance:** Abelian and non-Abelian**,** massive bosons, broken gauge symmetry**,** spontaneously broken symmetry**,** Higgs mechanism

**Standard Model:** The Lagrangian: Higgs Field, renormalizability**,** unification with QCD? higher symmetries?

**Organization**

Lectures: Tuesdays and Thursdays 1-2:40pm in HBH 223

Homework (50%)

Recitation of text material (50%)

Text: F. Halzen and A. Martin, *Quarks and Leptons*

*All information is representative only, and is likely to change from year to year.*