PS9-solutions - Phys 253a 1 Problem Set 9 Solutions...

Phys 253a 1
Problem Set 9 Solutions
December 2, 2010
1.

Phys 253a 2
2. (a) We proved in problem set 6 that the propagator for a vector boson is
- i
η
μν
-
k
μ
k
ν
m
2
Z
k 2 - m
2
Z
So the amplitude for ν
e
ν
e
→ ν
μ
ν
μ
is
i M = [ v
2
γ
μ
i ( g
V
+ g
A
γ
5
) u
1
][

Phys 253a 3