In the paper of Intriligator, Seiberg, and Shih from 2007, they give an expression for the effective potential on the pseudo-moduli space $X$, estimated at large $X$ (equation 1.3).
In this equation, "$\gamma$ is the anomalous dimension of a particular linear combination of them". Later on in the paper they give examples for this (eq. 4.9).
What is the formula for this $\gamma$ and how do we reach this expression?