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arXiv · hep-th/9703197

Controlled Soft Breaking of N=1 SQCD

Nick Evans·Stephen Hsu·Myckola Schwetz
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Abstract

We discuss the introduction of soft breaking terms into the exact solutions of N=1 SQCD using a spurion analysis. The spurion symmetries are not sufficient to determine the behavior of models in which squark or gaugino masses alone are introduced. However, a controlled approximation is obtained in some cases if a supersymmetric mass is first introduced for the matter fields. We present low-energy solutions for two models with perturbing soft breaking terms, one with a gaugino mass and one with squark mixing. These models have non-trivial theta angle dependence and exhibit phase transitions at non-zero theta angle analogous to those found in the chiral Lagrangian description of QCD.

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Nick Evans, Stephen Hsu, Myckola Schwetz. 1997-03-27. Controlled Soft Breaking of N=1 SQCD. https://doi.org/10.1016/s0370-2693(97)00541-8

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