Griffiths Introduction to Elementary Particles · Problem 7.30

Electrodynamics of Quarks and Hadrons — David J. Griffiths

Physics — QFT · contraction-theorems

Problem

(a) Use the anticommutation relation 5 to prove the contraction theorems 6, 7, 8, and 9. (b) From 7, prove 7'; from 8, prove 8'; from 9, prove 9'.