A Scale at 10 MeV, Gravitational Topological Vacuum, and Large Extra Dimensions

@article{Aydemir2017ASA,
  title={A Scale at 10 MeV, Gravitational Topological Vacuum, and Large Extra Dimensions},
  author={Ufuk Aydemir},
  journal={Universe},
  year={2017}
}
We discuss a possible scale of gravitational origin at around 10 MeV, or 10−12 cm, which arises in the MacDowell-Mansouri formalism of gravity due to the topological Gauss-Bonnet term in the action, as pointed out by Bjorken several years ago.~A length scale of the same size emerges also in the Kodama solution in gravity, which is known to be closely related to the MacDowell-Mansouri formulation. We particularly draw attention to the intriguing incident that existence of six compact extra… 
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