Hypercharge Flux, Exotics, and Anomaly Cancellation in F-theory GUTs

Details Hypercharge Flux, Exotics, and Anomaly Cancellation in F-theory GUTs Hypercharge Flux, Exotics, and Anomaly Cancellation in F-theory GUTs

2010-11-09

arxiv.org/abs/1011.2212v2

Phys.Rev.Lett.106:081601,2011

Physics

High Energy Physics

High Energy Physics - Theory

5 pages; v2 published version: substantially revised (reordered some material, added discussion of MSSM gauge anomalies), refe

Scientific paper

10.1103/PhysRevLett.106.081601

We sharpen constraints related to hypercharge flux in F-theory GUTs that possess U(1) symmetries and argue that they arise as a consequence of 4-dimensional anomaly cancellation. This gives a physical explanation for all restrictions that were observed in spectral cover models while demonstrating that the phenomenological implications for a well-motivated set of models are not tied to any particular formalism.

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