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arXiv · 1002.1081

Moduli stabilization and SUSY breaking in heterotic orbifold string models

Ben Dundee·Stuart Raby·Alexander Westphal
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Abstract

In this paper we discuss the issues of supersymmetry breaking and moduli stabilization within the context of E_8 x E_8 heterotic orbifold constructions and, in particular, we focus on the class of "mini-landscape" models. In the supersymmetric limit, these models admit an effective low energy field theory with a spectrum of states and dimensionless gauge and Yukawa couplings very much like that of the MSSM. These theories contain a non-Abelian hidden gauge sector which generates a non-perturbative superpotential leading to supersymmetry breaking and moduli stabilization. We demonstrate this effect in a simple model which contains many of the features of the more general construction. In addition, we argue that once supersymmetry is broken in a restricted sector of the theory, then all moduli are stabilized by supergravity effects. Finally, we obtain the low energy superparticle spectrum resulting from this simple model.

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Ben Dundee, Stuart Raby, Alexander Westphal. 2010-05-26. Moduli stabilization and SUSY breaking in heterotic orbifold string models. https://doi.org/10.1103/physrevd.82.126002

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