Quantum corrections in <Emphasis Type="Italic">N</Emphasis> = 1 supersymmetric theories with cubic superpotential,regularized by higher covariant derivatives

Using the higher covariant derivative regularization we calculate a two-loop β-function for the N = 1 supersymmetric Yang-Mills theory with the matter superfields, containing the cubic superpotential. It is found that all integrals, defining this function, are integrals of total derivatives.