A. Zee, Quantum Field Theory in a Nutshell · Problem N.3.3

Field Theory Redux

Physics — QFT

Problem

Using the explicit forms given for

A(1^-, 2^-, 3^+, 4^+)

and

A(1^-, 2^+, 3^-, 4^+)

in the preceding chapter, check the estimated large

z

behavior in (13-15).