Tag Info

New answers tagged


Part of your confusion here probably comes from your notation. Usually we reserve the index $\mu$ for spacetime. The generators of $SU(N)$ are more commonly labelled with Latin indices $t^a$. See for example here. We can split the amplitude into two parts, according to whether they concern color or kinematics. You are just interested in the color part. Each ...

Top 50 recent answers are included