Types of gauge groups in six-dimensional F-theory on double covers of rational elliptic 3-folds

Abstract

In this study, we analyze gauge groups in six-dimensional $N=1$ F-theory models. We construct elliptic Calabi-Yau 3-folds possessing various singularity types as double covers of "1/2 Calabi-Yau 3-folds", a class of rational elliptic 3-folds, by applying the method discussed in a previous study to classify the singularity types of the 1/2 Calabi-Yau 3-folds. One to three U(1) factors are formed in six-dimensional F-theory on the constructed Calabi-Yau 3-folds. The singularity types of the constructed Calabi-Yau 3-folds corresponding to the non-Abelian gauge group factors in six-dimensional F-theory are deduced. The singularity types of the Calabi-Yau 3-folds constructed in this work consist of $A$- and $D$-type singularities.

arXiv comment22 pages

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• Singularities of 1/2 Calabi-Yau 4-folds and classification scheme for gauge groups in four-dimensional F-theory