2007/07/31 by M. C. B. Abdalla, M C B Abdalla, M. E. X. Guimaraes +3 · 2 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Brane #Compactification (mathematics) #Cosmic string #Cosmology and Gravitation Theories #Extra dimensions #Gravitation #Hierarchy problem #Non-critical string theory #Noncommutative and Quantum Gravity Theories #Spacetime #String (physics) #String theory #gr-qc #hep-th
paper · pdf · doi:10.1088/1475-7516/2008/09/021
RevTex, 7 pages. New version to be published in the JCAP (2008)
arxiv created 2008/09/04 · openalex publication_date 2008/09/26 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
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 topology and a power law warp factor, and one non-compact 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 means of the Brans–Dicke parameter.