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arXiv 0811.0332hep-thhep-ph
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杂化弦论中F项提升的模稳定性

Moduli stabilization with F-term uplifting in heterotic string theory

Kwang Sik Jeong, Seodong Shin

摘要:

我们讨论的作用,F-项的提升,在稳定模的杂合弦论的框架内。结果表明,在模不变势的自对偶点上,上升区对确定体积模起着重要作用。对于稳定在自对偶点的体积模量,F项的提升导致了膨胀稳定化,这自然会产生软超对称破缺项的海市蜃楼调解模式。推广到反常U(1)规范对称性的情况,我们还发现,U(1)扇区对sfermion质量的贡献一般与介子介导的贡献相当,同时保持了海市蜃楼介导模式。

英文摘要:

We discuss the role of F-term uplifting in stabilizing moduli within the framework of heterotic string theory. It turns out that the uplifting sector plays an important role in fixing the volume modulus at one of the self-dual points of a modular invariant potential. For the volume modulus stabilized at a self-dual point, the F-term uplifting leads to the dilation stabilization which can naturally yield the mirage mediation pattern of soft supersymmetry breaking terms. Generalizing to the case with anomalous U(1) gauge symmetry, we also find that the U(1) sector generically gives a contribution to sfermion masses comparable to the dilaton mediated one while maintaining the mirage mediation pattern.

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