Weak mixing angle and proton stability in F-theory GUT

Kang Sin Choi, Bumseok Kyae

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


It is pointed out that a class of flipped SU(5) models based on F-theory naturally explains the gauge coupling unification. It is because the gauge group SU(5)×U(1)X is embedded in SO(10) and E8. To prohibit the dimension 4 and 5 proton decay processes, the structure group associated with monodromy should be SU(3) or smaller. Extra heavy vector-like pairs of {5-2,52} except only one pair of Higgs should be disallowed, because they could induce the unwanted dimension 5 proton decays. We construct a simple global F-theory model considering these points. To maintain sin2θW0=38 at the GUT scale, the fluxes are turned on only on the flavor branes.

Original languageEnglish
Pages (from-to)1-20
Number of pages20
JournalNuclear Physics, Section B
Issue number1
StatePublished - 1 Feb 2012


  • F-theory
  • Gauge coupling unification
  • Proton decay
  • Weak mixing angle


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