Modified Large Distance Newton Potential on a Gauss-Bonnet Brane World

Details Modified Large Distance Newton Potential on a Gauss-Bonnet Brane World Modified Large Distance Newton Potential on a Gauss-Bonnet Brane World

2004-10-06

arxiv.org/abs/hep-th/0410065v3

Phys.Rev. D72 (2005) 024026

Physics

High Energy Physics

High Energy Physics - Theory

6 pages

Scientific paper

10.1103/PhysRevD.72.024026

Gravity on a brane world with higher order curvature terms and a conformally coupled bulk scalar field is investigated. Solutions with non-standard large distance gravity are described. It is not necessary to include a scalar field potential in order to obtain the solutions. The resulting Newton potential is qualitatively similar to that of the Dvali-Gabadadze-Porrati (DGP) model. For suitable parameter choices the model is ghost free. Like many other brane gravity models with modified large distance Newton potentials, the short distance gravity is scalar-tensor. The scalar couples with gravitational strength, and so the model is not compatible with observation.

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