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Gauge Coupling Unification in F-theory GUT Models
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We investigate gauge coupling unification for F-theory respectively Type IIB orientifold constructions of SU(5) GUT theories with gauge symmetry breaking via non-trivial hypercharge flux. This flux has the non-trivial effect that it splits the values of the three MSSM gauge couplings at the string scale, thus potentially spoiling the celebrated one-loop gauge coupling unification. It is shown how F-theory can evade this problem in a natural way.
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Cited by 2 Pith papers
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Heterotic-$\mathbf{F}$-theory Duality with Wilson Line Symmetry-breaking
A new F-theory construction with two elliptic sections gives an MSSM spectrum with no vector-like exotics via Wilson line breaking.
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Testing F-theory GUTs with the Axiverse
In F-theory GUTs, non-universal ALPs induced by hypercharge flux satisfy g_aγ/m_a well below the QCD axion prediction when gauge couplings unify near the string scale.
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