arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0802.3391hep-thhep-ph
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F-理论中的大统一理论和例外膜- I

GUTs and Exceptional Branes in F-theory - I

Chris Beasley, Jonathan J. Heckman, Cumrun Vafa

摘要:

潜在的现象学应用的动机,我们开发了必要的工具,在F理论中建立大统一体模型。这种方法非常灵活,因为F-理论紧化中奇点的局部几何性质编码了理论的物理内容。特别是,我们展示了几何形状如何确定一个给定的模型的规范群,物质含量和汤川耦合。事实证明,这些特征被四维拓扑扭曲N=4理论完美地捕捉到了,该理论与手性物质可以传播的表面缺陷理论相结合。从四维拓扑理论的观点来看,这些缺陷是曲面算子。这些缺陷的特定交点导致汤川耦合。我们还发现,F-理论几何中的奇异性的展开精确地匹配于具有缺陷的拓扑理论的性质。

英文摘要:

Motivated by potential phenomenological applications, we develop the necessary tools for building GUT models in F-theory. This approach is quite flexible because the local geometrical properties of singularities in F-theory compactifications encode the physical content of the theory. In particular, we show how geometry determines the gauge group, matter content and Yukawa couplings of a given model. It turns out that these features are beautifully captured by a four-dimensional topologically twisted N=4 theory which has been coupled to a surface defect theory on which chiral matter can propagate. From the vantagepoint of the four-dimensional topological theory, these defects are surface operators. Specific intersection points of these defects lead to Yukawa couplings. We also find that the unfolding of the singularity in the F-theory geometry precisely matches to properties of the topological theory with a defect.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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