Notes for Physics 624 (Prof. Agashe) – Fall 2010


1.      Lagrangian formalism: going from single particle to field (from Sakurai)

2        Weinberg’s paper on his approach towards (teaching of) QFT

2.      Derivation of Dirac equation: part (i) and part (ii)

3.      Spin of single particle and single anti-particle states

          4.  Derivation of S-matrix

          5.  S-matrix element for Fermion-fermion scattering (a couple of typos on page 4 have

               been corrected)

6. Generalities of cross-section and example with 4-fermion interaction

7. QED cross-section: e+ e- -> mu+ mu-

8. Scalar QED