The Potential Fate of Local Model Building

Details The Potential Fate of Local Model Building The Potential Fate of Local Model Building

2011-01-17

arxiv.org/abs/1101.3346v1

Phys.Rev.D83:086008,2011

Physics

High Energy Physics

High Energy Physics - Theory

29 pages, no figures

Scientific paper

10.1103/PhysRevD.83.086008

We analyse local models at the point of E_8 in F-theory GUTs and identify exactly two models with potentially realistic properties concerning proton stability and a suitable pattern of quark and lepton masses. To this end we identify a matter parity at the local point. A globally consistent ultraviolet completion turns out to be problematic for both models. It is impossible to embed the models in a semilocal scheme via the spectral cover approach. This seems to severely limit the predictive power of local model building and to indicate that the full string theory might give us valuable hints for particle physics model building.

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