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arXiv 0904.0459hep-th
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D项与膜的超对称破缺

D-Terms and Supersymmetry Breaking from Branes

Amit Giveon, David Kutasov, Jock McOrist, Andrew B. Royston

摘要:

在弦论中,D-膜和NS 5-膜的亚稳超对称破缺组态的存在常常归因于膜之间的经典引力相互作用。我们表明,在光场的有效理论中,这些相互作用产生了非正则Kähler势和其他D项。弦论提供了一个UV完备化,其中这些不可重正化的项可以被计算。我们使用这些观察澄清ISS型模型的相结构和膜实现之间的关系。

英文摘要:

Metastable supersymmetry breaking configurations of D-branes and NS5-branes in string theory often owe their existence to classical gravitational interactions between the branes. We show that in the effective theory of the light fields, these interactions give rise to a non-canonical Kähler potential and other D-terms. String theory provides a UV completion in which these non-renormalizable terms can be computed. We use these observations to clarify the relation between the phase structure of ISS-type models and their brane realizations.

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