Brane Gravitational Interactions from 6D Supergravity

Details Brane Gravitational Interactions from 6D Supergravity Brane Gravitational Interactions from 6D Supergravity

2009-08-31

arxiv.org/abs/0909.0023v1

Phys.Lett.B681:166-171,2009

Physics

High Energy Physics

High Energy Physics - Theory

13 pages, 4 figures

Scientific paper

10.1016/j.physletb.2009.10.008

We investigate the massive graviton contributions to 4D gravity in a 6D brane world scenario, whose bulk field content can include that of 6D chiral gauged supergravity. We consider a general class of solutions having 3-branes, 4D Poincare symmetry and axisymmetry in the internal space. We show that these contributions, which we compute analytically, can be independent of the brane vacuum energy as a consequence of geometrical and topological properties of the above-mentioned codimension two brane world. These results support the idea that in such models the gravitational interactions may be decoupled from the brane vacuum energy.

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