Towards an hybrid compactification with a scalar-tensor global cosmic string

Abstract

We derive a solution of the gravitational equations which leads to a braneworld scenario in six dimensions using a global cosmic string solution in a low energy effective string theory framework. The final spacetime is composed by one warped brane with ${\mathbb{R}}^{(3,1)}\times S^1$ topology and a power law warp factor, and one noncompact extra dimension transverse to the brane. By looking at the current experimental bounds, we find a range of parameters in which, if the on-brane dimension has an acceptable size, it does not solve the hierarchy problem. In another example this problem is smoothed by the Brans-Dicke parameter.

RevTex, 7 pages. New version to be published in the JCAP (2008)

References in corpus (4)

• Braneworlds in six dimensions: new models with bulk scalars
• A Signal for a Theory of Flavor at the LHC
• Brane Cosmic String Compactification in Brans-Dicke Theory
• Low-energy effective theory for a Randall-Sundrum scenario with a moving bulk brane

Cited by in corpus (1)

• Braneworld Remarks in Riemann-Cartan Manifolds