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arXiv 0904.3932hep-th
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超对称大统一理论的F-理论紧化

F-theory Compactifications for Supersymmetric GUTs

Joseph Marsano, Natalia Saulina, Sakura Schafer-Nameki

摘要:

我们构造了一族椭圆纤维化的Calabi-Yau四重Y_4,用于在低能极限下实现SU(5)大统一理论的F-理论紧化。这些纤维化的三重基X_3几乎是Fano的,并且满足确保U(1)_Y规范玻色子保持无质量所需的拓扑标准,同时允许GUT和普朗克尺度物理的解耦。我们研究这些模型的通用功能和工程师的三个手性一代MSSM物质的能力。最后,我们证明,这是相对容易实现的拓扑条件,需要重现某些成功的功能,如出现的风味层次结构的局部F-理论模型。

英文摘要:

We construct a family of elliptically fibered Calabi-Yau four-folds Y_4 for F-theory compactifications that realize SU(5) GUTs in the low-energy limit. The three-fold base X_3 of these fibrations is almost Fano and satisfies the topological criteria required to ensure that the U(1)_Y gauge boson remains massless, while allowing a decoupling of GUT and Planck scale physics. We study generic features of these models and the ability to engineer three chiral generations of MSSM matter. Finally, we demonstrate that it is relatively easy to implement the topological conditions required to reproduce certain successful features of local F-theory models, such as the emergence of flavor hierarchies.

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