Griffiths Introduction to Elementary Particles · Problem 10.1

Weak Interactions — David J. Griffiths

Physics — QFT · weak-vertex-parity-violation

Problem

In the weak vertex factor, a factor of the form

(1 + \epsilon\gamma^5)

was originally used, but experiments dictated that

\epsilon = -1

. Show that the

V{-}A

coupling is consistent with maximal parity violation. (See the discussion in Section 10.1.)