A K-theory Anomaly Free Supersymmetric Flipped SU(5) Model from Intersecting Branes

Abstract

We construct an N=1 supersymmetric three-family flipped SU(5) model from type IIA orientifolds on $T^6/({\mathbb{Z}}_2\times {\mathbb{Z}}_2)$ with D6-branes intersecting at general angles. The model is constrained by the requirement that Ramond-Ramond tadpoles cancel, the supersymmetry conditions, and that the gauge boson coupled to the $U(1{)}_X$ factor does not get a string-scale mass via a generalised Green-Schwarz mechanism. The model is further constrained by requiring cancellation of K-theory charges. The spectrum contains a complete grand unified and electroweak Higgs sector, however the latter in a non-minimal number of copies. In addition, it contains extra matter both in bi-fundamental and vector-like representations as well as two copies of matter in the symmetric representation of SU(5).

arXiv comment17 Pages, LaTeX

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• Flux Parameter Spaces in Type II Vacua