r Duality and "Instead-of-Confinement" Mechanism in N=1 Supersymmetric QCD

Understand

We consider N=2 SQCD with the U(N) gauge group and N_f flavors (N_f>N) perturbed by an N=2 breaking deformation - a small mass term \mu for the adjoint matter.

• We study r-vacua, with the constraint $2N_f/3 < r \le N.
• At large values of the parameter \xi\sim\mu m (m is a typical value of the quark masses) r quark flavors condense, by construction.
• The effective low-energy theory with the gauge group U(r)\times U(1)^{N-r} is at weak coupling.