$\beta$-functions in large-$N_f$ supersymmetric gauge theories

Abstract

We present calculations of the leading and $O(1/N_f)$ terms in a large-$N_f$ expansion of the $\beta$-functions and anomalous dimensions for various supersymmetric gauge theories, including supersymmetric QCD. In the case of supersymmetric QCD, we show that our $O(1/N_f)$ approximation displays an infra-red fixed point in the conformal window $3N_c/2<N_f<3N_c$.

22 pages, tex, 7 figures. Uses harvmac and epsf

References in corpus (2)

• Field-Theoretic Techniques in the Study of Critical Phenomena
• Large-N supersymmetric beta-functions

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