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arXiv 1002.1081hep-thhep-ph
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杂化轨道弦模型的模稳定性和SUSY破缺

Moduli stabilization and SUSY breaking in heterotic orbifold string models

Ben Dundee, Stuart Raby, Alexander Westphal

摘要:

本文讨论了E_8 × E_8杂化轨道结构中的超对称破缺和模稳定化问题,特别是“mini-landscape”模型。在超对称极限,这些模型承认一个有效的低能量场论与频谱的状态和无量纲规范和汤川耦合非常像的MSSM。这些理论包含一个非阿贝尔隐藏规范部门,产生一个非微扰超势导致超对称性破缺和模量稳定。我们证明了这种效果在一个简单的模型,其中包含了许多功能的更一般的建设。此外,我们认为,一旦超对称性在理论的一个限制部门被打破,那么所有的模量稳定的超引力效应。最后,我们得到了这个简单模型的低能超粒子谱。

英文摘要:

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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