Supersymmetry breaking and an introduction to grand unified theories
Particle Physics 3: Supersymmetry and Grand Unification (Spring, 2010)
Lecture Playlist

Renormalization concepts, and dimensional analysis

Fermions and bosons

Propagators and renormalization of mass

Symmetry and Grassmann numbers

A first supersymmetric model

Supersymmetry building blocks

Lagrangians that preserve supersymmetry

Generalizing supersymmetry to 3+1 spacetime, and QFT

Supersymmetry breaking and an introduction to grand unified theories

GUTs, the SU(5) representation, proton decay
May 31, 2010
In the first half of the lecture, Professor Susskind makes an analogy between breaking supersymmetry and breaking the symmetry of a ferromagnet. In the second half of the lecture, Professor Susskind introduces GUTs as corresponding to the group SU(5) which has the subgroup SU(3)xSU(2)xSU(1) corresponding to the Standard Model.
Topics:
 Supersymmetry breaking and Goldstone bosons
 GUTs and generators of SU(5)
 Connecting generators to particles