N=1 Sigma Models in AdS_4

Details N=1 Sigma Models in AdS_4 N=1 Sigma Models in AdS_4

2011-04-15

arxiv.org/abs/1104.3155v3

Physics

High Energy Physics

High Energy Physics - Theory

32 pages; v2: minor changes and references added; v3: discussion in sect. 5 extended, version published in JHEP

Scientific paper

We study sigma models in AdS_4 with global N=1 supersymmetry and find that they differ significantly from their flat-space cousins -- the target space is constrained to be a Kahler manifold with an exact Kahler form, the superpotential transforms under Kahler transformations, the space of supersymmetric vacua is generically a set of isolated points even when the superpotential vanishes, and the R-symmetry is classically broken by the cosmological constant. Remarkably, the exactness of the Kahler class is also required for the sigma model to arise as a decoupling limit of N=1 supergravity, and ensures the vanishing of gravitational anomalies. As simple applications of these results, we argue that fields with AdS_4 scale masses are ubiquitous in, for example, type IIB N=1 AdS_4 vacua stabilized near large volume; we also show that the Affleck-Dine-Seiberg runaway of N_f < N_c SQCD is regulated by considering the theory in AdS_4.

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