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arXiv hep-th/0401034hep-th
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软超对称破缺的局域弦模型

Local string models of soft supersymmetry breaking

Albion Lawrence, John McGreevy

摘要:

我们研究了具有膜和通量的II型弦论紧化的局部模型中的软超对称破缺。在这种模型中,磁通量可以作为辅助场处理N=2超对称多重态。这些多重态在局部模型的低能有效作用中表现为“spurion超场”。我们讨论了这些模型中从N=2到N=1到N=0的超对称性破缺模式,然后在各种例子中识别出导致软超对称性破缺项的场。在最后一节,我们重新考虑软破缺超对称规范理论中Dijkgraaf-Vafa猜想的论证。

英文摘要:

We study soft supersymmetry breaking in local models of type II string theory compactifications with branes and fluxes. In such models, magnetic fluxes can be treated as auxiliary fields in N=2 SUSY multiplets. These multiplets appear as ``spurion superfields'' in the low-energy effective action for the local model. We discuss the pattern of SUSY breaking from N=2 to N=1 to N=0 in these models, and then identify the fields leading to soft SUSY breaking terms in various examples. In the final section, we reconsider arguments for the Dijkgraaf-Vafa conjecture in gauge theories with softly broken supersymmetry.

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