Speaker
Description
Recently, various authors have studied the vacua of strongly coupled field theories via the introduction of anomaly mediated supersymmetry breaking (AMSB) to supersymmetric (SUSY) gauge theories. This technique is powerful but it is known that in some cases, there is a phase transition as the SUSY-breaking scale crosses the confinement scale. We introduce AMSB to $\mathcal{N}=2$ SQCD (Supersymmetric Quantum Chromo-Dynamics) with massless squarks. Perturbatively, the theory retains $\mathcal{N}=1$ SUSY, and the AMSB terms are equivalent to a supersymmetric mass term for the adjoint chiral multiplet. However, instanton contributions induce a mass splitting which breaks supersymmetry completely. In the IR description, the theory with AMSB is qualitatively similar to its $\mathcal{N}=1$ analog, exhibiting monopole condensation and confinement. However, the dynamics break supersymmetry completely, and the values of the condensates are different from their $\mathcal{N}=1$ analogs. Under physically reasonable assumptions, it can be shown that the vacuum must change to those of the $\mathcal{N}=1$ theory as the SUSY-breaking scale crosses the strong-coupling scale.