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arXiv 0902.0030hep-thhep-ph
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关于Wess-Zumino模型的SUSY和R-对称破缺的注记

Notes on SUSY and R-Symmetry Breaking in Wess-Zumino Models

Zohar Komargodski, David Shih

摘要:

我们研究了Wess-Zumino模型在树水平上与超对称性和R对称性破缺有关的方面。我们提出了一个配方,用于构建一个广泛的类树级超对称性和R-破环模型。我们还推导出一个一般的属性共享的所有树级超对称断裂模型,具有广泛的应用模型建设。特别是,它解释了为什么许多直接规范中介的模型都有非常轻的规范(即使R对称性自发地被一阶量破缺)。这表明了新的方法,动力学超对称性破缺,可以产生足够大的高吉诺质量。

英文摘要:

We study aspects of Wess-Zumino models related to SUSY and R-symmetry breaking at tree-level. We present a recipe for constructing a wide class of tree-level SUSY and R-breaking models. We also deduce a general property shared by all tree-level SUSY breaking models that has broad application to model building. In particular, it explains why many models of direct gauge mediation have anomalously light gauginos (even if the R-symmetry is broken spontaneously by an order one amount). This suggests new approaches to dynamical SUSY breaking which can generate large enough gaugino masses.

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