Springer Lecture Notes in Physics 716

7 Field-Theory Approaches to Nonequilibrium Dynamics 319
where B d = Γ (4 − d/2)/2 d dπ d/2 , Eq. (7.101) implies the identity [9]
Z g = Z S . (7.103)
For the RG beta function associated with the effective coupling entering the
loop corrections, we thus infer
β f = µ ∂
∂µ ∣ f R = f R (d − 6+γ S − 2 γ D ) . (7.104)
0
Consequently, at any nontrivial IR-stable RG fixed point 0