- #1

Ramtin123

- 22

- 0

Is the kinetic mixing of the following form gauge-invariant?

$$ F_{\mu\nu}^a F^{'a\mu\nu} $$

where ## F_{\mu\nu}^a## and ## F_{\mu\nu}^{'a}## denote the corresponding field strength tensors.

What is the difference between this case and a usual non-Abelian kinetic term ## F_{\mu\nu}^a F^{a\mu\nu}##?