Question

Why Conserved Current Should Not Need Renormalization?

Answer 1

Explanation:

Why Conserved Current Should Not Need Renormalization?

May be this is trivial but I need to understand why the renormalization of conserved current is not necessary.

Answer 2

Explanation:

it should conserve Sometimes you will have a theory without a symmetry to ... We don't need to know the field content or ... conserved currents so UV divergences in vertex and wavefunction cancel .