- #1
physichu
- 30
- 1
In peskin p. 192, they says that the denominator (that is equation 6.43) is symmetric under x<--> y. Thay all so say that you can see it in equation 6.44.
But one of the terms in the denominetor is y*q which dose not have that symmetry!
Looking at (6.43) and removing the summetric parts leave me with
2yk⋅q +yq2.
Whitch is not x<-->y symmetric.
But one of the terms in the denominetor is y*q which dose not have that symmetry!
Looking at (6.43) and removing the summetric parts leave me with
2yk⋅q +yq2.
Whitch is not x<-->y symmetric.