Homework 5
Due on or before Friday, April 19
1) Mass generation. Consider a free Hamiltonian of a single spin-1/2, Dirac
particle
(1)
H = H0 + V
with
H0 =
dx(x)[i ](x)
(2)
dx(x)(x)
(3)
V =m
Note the decomposition of H into a free, H0 and interaction term
Homework 4
Due on or before Friday, March 28
1) Here you will calculate parity violation in e e+ + scattering. The
relevant interactions are,
e2
2
1
(y)(y)
4|x y|
(1)
for electromagnetic interaction between photon led A, A = 0 and a fermion
() with elect
Problem Set 1
Due on or before, but no later then Friday, Jan 29. 31
For reference use lecture notes and Itzyskson and Zuber Quantum Field
Theory, or Peskin and Schroeder An Introduction to Quantum Field Theory
1. Consider a classical system of 2, complex