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

C. -M. Chen·G. V. Kraniotis·V. E. Mayes·D. V. Nanopoulos·J. W. Walker
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Abstract

We construct an N=1 supersymmetric three-family flipped SU(5) model from type IIA orientifolds on $T^6/(\Z_2\times \Z_2)$ 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).

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C. -M. Chen, G. V. Kraniotis, V. E. Mayes, D. V. Nanopoulos, J. W. Walker. 2005-07-25. A K-theory Anomaly Free Supersymmetric Flipped SU(5) Model from Intersecting Branes. https://doi.org/10.1016/j.physletb.2005.08.042

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