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We determine the fine-tuning of the Yukawa couplings of supersymmetric QCD,discretized on a lattice. We use perturbation theory at one-loop level. TheModified Minimal Subtraction scheme ($\overline{{\rm MS}}$) is employed; by itsdefinition, this scheme requires perturbative calculations, in the continuumand/or on the lattice. On the lattice, we utilize the Wilson formulation forgluon, quark and gluino fields; for squark fields we use na\"ivediscretization. The sheer difficulties of this study lie in the fact thatdifferent components of squark fields mix among themselves at the quantum leveland the action's symmetries, such as parity and charge conjugation, allow anadditional Yukawa coupling. Consequently, for an appropriate fine-tuning of theYukawa terms, these mixings must be taken into account in the renormalizationconditions. All Green's functions and renormalization factors are analyticexpressions depending on the number of colors, $N_c$, the number of flavors,$N_f$, and the gauge parameter, $\alpha$, which are left unspecified. Knowledgeof these renormalization factors is necessary in order to relate numericalresults, coming from nonperturbative studies, to the renormalized, ``physical"Green's functions of the theory.

Supersymmetric QCD on the Lattice: Fine-Tuning of the Yukawa Couplings