Direct Mediation of Meta-Stable Supersymmetry Breaking

Abstract

The supersymmetric SUN C Yang-Mills theory coupled to N F matter fields in the fundamental representation has metastable vacua with broken supersymmetry when N C < N F < 3 2 N C . By gauging the flavor symmetry, this model can be coupled directly to the standard model. We show that it is possible to make a slight deformation to the model so that gaugino masses are generated and the Landau pole problem can be avoided. The deformed model has simple realizations on intersecting branes in string theory, where various features of the metastable vacua are encoded geometrically as brane configurations.

Nonsupersymmetric brane/antibrane configurations in type IIA and M theory

“…One can also obtain the scaling by studying the elliptic functions in (3.41) directly, but this is less transparent. 38 The second equation in (3.56) gives different conditions depending on the values of N 1,2 , but it is least stringent for N 1 = N 2 , for which it is the same as (4.30).…”

“…Because such configurations do not correspond to true vacua, many of the difficulties associated with the construction of realistic models of supersymmetry-breaking can be avoided. As such, the ideas of [1] have already found wide phenomenological application [33,34,35,36,37,38,39,40,41].…”

Stable and metastable vacua in SQCD

“…We will see that such superpotentials lead generically to a rich landscape of supersymmetric and non-supersymmetric vacua, and explore some of their properties. Related works include [8][9][10][11][12][13][14][15][16][17][18].…”

Dynamical SUSY and R-symmetry breaking in SQCD with massive and massless flavors

“…Finally, a third (and perhaps most obvious) possibility is to break the approximate R-symmetry explicitly, but on general grounds [22] this generically leads to proximal SUSY vacua and some tuning has to be invoked (see e.g. [23][24][25] for models). One possibility that has been explored is to have explicit R-symmetry breaking only through Planck-suppressed couplings to messengers [26,27].…”