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Search: authors:"George K. Leontaris"

4 papers found.
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Magnetic monopoles and free fractionally charged states at accelerators and in cosmic rays

Unified theories of strong, weak and electromagnetic interactions which have electric charge quantization predict the existence of topologically stable magnetic monopoles. Intermediate scale monopoles are comparable with detection energies of cosmic ray monopoles at IceCube and other cosmic ray experiments. Magnetic monopoles in some models can be significantly lighter and carry...

Diphoton resonance in F-theory inspired flipped \(\mathrm{SO}(10)\)

Motivated by the di-photon excess at 750 GeV reported by the ATLAS and CMS experiments, we present an F-theory inspired flipped \(\mathrm{SO}(10)\) model embedded in \(\mathcal{E}_6\). The low energy spectrum includes the three MSSM chiral families, vector-like colour triplets, several pairs of charged \(\mathrm{SU}(2)_L\) singlet fields \((E^c, \bar{E}^c)\), as well as MSSM...

Phenomenological implications of a minimal F-theory GUT with discrete symmetry

We discuss the origin of both non-Abelian discrete family symmetry and Abelian continuous family symmetry, as well as matter parity, from F-theory SUSY GUTs. We propose a minimal model based on the smallest GUT group SU(5), together with the non-Abelian family symmetry D 4 plus an Abelian family symmetry, where fluxes are responsible for doublet-triplet splitting, leading to a...

Discrete family symmetry from F-theory GUTs

We consider realistic F-theory GUT models based on discrete family symmetries A 4 and S 3, combined with SU(5) GUT, comparing our results to existing field theory models based on these groups. We provide an explicit calculation to support the emergence of the family symmetry from the discrete monodromies arising in F-theory. We work within the spectral cover picture where in the...