Abelian gauge symmetries and proton decay in global F-theory GUTs
Abelian gauge symmetries and proton decay in global F-theory GUTs
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全局 F 理论 GUT 中的阿贝尔规范对称性和质子衰变
DOI:
10.1103/physrevd.82.086009
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发表时间:
2010
影响因子:
5
通讯作者:
T. Weigand
中科院分区:
文献类型:
--
作者:
T. W. Grimm;T. Weigand
The existence of Abelian gauge symmetries in four-dimensional-theory compactifications depends on the global geometry of the internal Calabi-Yau four-fold and has important phenomenological consequences. We study conceptual and phenomenological aspects of suchsymmetries along the Coulomb and the Higgs branch. As one application we examine Abelian gauge factors arising after a certain global restriction of the Tate model that goes beyond a local spectral cover analysis. Ingrand unified theory (GUT) models this mechanism enforces a globalsymmetry that prevents dimension-4 proton decay and allows for an identification of candidate right-handed neutrinos. We invoke a detailed account of the singularities of Calabi-Yau four-folds and their mirror duals starting from an underlyingandenhanced Tate model. The global resolutions and deformations of these singularities can be used as the appropriate framework to analyze-theory GUT models.
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DOI:
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1997
期刊:
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