Flipped SU(5) GUTs from E_8 Singularities in F-theory

Understand

In this paper we construct supersymmetric flipped SU(5) GUTs from E_8 singularities in F-theory.

• We start from an SO(10) singularity unfolded from an E_8 singularity by using an SU(4) spectral cover.
• To obtain realistic models, we consider (3,1) and (2,2) factorizations of the SU(4) cover.
• After turning on the massless U(1)_X gauge flux, we obtain the SU(5) X U(1)_X gauge group.