Renormalization concepts, and dimensional analysis

Particle Physics 3: Supersymmetry and Grand Unification (Spring, 2010)

Lecture Playlist

  1. Renormalization concepts, and dimensional analysis

  2. Fermions and bosons

  3. Propagators and renormalization of mass

  4. Symmetry and Grassmann numbers

  5. A first supersymmetric model

  6. Supersymmetry building blocks

  7. Lagrangians that preserve supersymmetry

  8. Generalizing supersymmetry to 3+1 spacetime, and QFT

  9. Supersymmetry breaking and an introduction to grand unified theories

  10. GUTs, the SU(5) representation, proton decay

March 29, 2010

In the first lecture of the series Professor Susskind introduces the concept of renormalization, which allows elimination of as yet unknown physics at very tiny scales or high energies from our calculations of physics at accessible scales. He also connects dimensional analysis to the set of possible Lagrangians for our theories.

Topics: 
  • Renormalization
  • Dimensional analysis in Lagrangians
  • Vacuum energy renormalization