Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2008-06-20
Phys.Rev.D78:106011,2008
Physics
High Energy Physics
High Energy Physics - Theory
13 pages, ReVTeX, 3 figures, 2 tables
Scientific paper
10.1103/PhysRevD.78.106011
It is becoming increasingly clear that metastable vacua may play a prominent role in supersymmetry-breaking. To date, however, this idea has been realized only in models where non-perturbative dynamics complicates the analysis of metastability. In this paper, we present a simple construction in which metastable vacua occur classically, i.e., at tree-level, and in which supersymmetry-breaking is sourced by both D-terms and F-terms. All relevant dynamics is perturbative, and hence calculations of vacuum energies and lifetimes can be performed explicitly. Moreover, we find that our construction can even give rise to multiple non-supersymmetric vacua which are degenerate. The non-trivial vacuum structure of such models therefore suggests that they can provide a rich arena for future studies of vacuum metastability in supersymmetric field theories. Our results may also have important consequences for Z' phenomenology and the string landscape.
Dienes Keith R.
Thomas Brooks
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