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
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